Xavier Belles Lab
Evolution of Insect Metamorphosis Lab
Institut de Biologia Evolutiva (CSIC-UPF)
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Publications
2022

- Elias-Neto, M., Alvarez, N., Ventos-Alfonso, A., Belles, X. 2022. Flight or protection. The genes Ultrabithorax and apterous in the determination of membranous and sclerotized wings in insects. Proceedings of the Royal Society B 289: 20220967. [pdf]

- Shirai, Y., Piulachs, M.-D., Belles, X., Daimon, T. 2022. DIPA-CRISPR is a simple and accessible method for insect gene editing. Cell Reports Methods 2, 100215. doi.org/10.1016/j.crmeth.2022.100215. [pdf]

- Belles, X. 2022. The sex of scents. Nature Ecology and Evolution. 6: 1058-1059. [pdf]

- Fernandez-Nicolas, A., Ventos-Alfonso, A., Kamsoi, O., Clark-Hachtel, C., Tomoyasu, Y., Belles, X. 2022. Broad complex and wing development in cockroaches. Insect Biochemistry and Molecular Biology. 147: 103798. [pdf]

- Belles, X., Daimon, T. 2022. What triggers metamorphosis in cave insects with contracted life cycle? A work program. In: Advances in aquatic and subterranean beetles research: a tribute to Ignacio Ribera (Villastrigo, A., Millan, A., Sanchez-Fernandez, D., Fresneda, J., Valladares, L.F., eds.). Suplementos del Boletin de la Asociacion Espanola de Entomologia (in press).

2021

- Kamsoi, O., Ventos-Alfonso, A., Casares, F., Almudi, I., Belles, X. 2021. Regulation of metamorphosis in neopteran insects is conserved in the paleopteran Cloeon dipterum (Ephemeroptera). Proceedings of the National Academy of Sciences USA 118 (34): e2105272118. doi: 10.1073/pnas.2105272118.[pdf]

- Clark-Hachtel, C., Fernandez-Nicolas, A., Belles, X., Tomoyasu, Y. 2021. Tergal and pleural wing-related tissues in the German cockroach and their implication to the evolutionary origin of insect wings. Evolution & Development 23 (2): 100-116. doi: 10.1111/ede.12372. [pdf]

2020

- Belles, X. 2020. Insect metamorphosis. From natural history to regulation of development and evolution. Academic Press, London. 304 pages.

- Kamsoi, O., Belles, X. 2020. E93-depleted adult insects preserve the prothoracic gland and molt again. Development 147, dev190066. doi:10.1242/dev.190066.[pdf]

- Ventos-Alfonso, A., Ylla, G., Montañes, J.C., Belles, X. 2020. DNMT1 promotes genome methylation and early embryo development in cockroaches. iScience 23: 101778. doi.org/10.1016/j.isci.2020.101778. [pdf]

2019

- Kamsoi, O., Belles, X. 2019. Myoglianin triggers the pre-metamorphosis stage in hemimetabolan insects. FASEB J. 33 (3): 3659-3669. doi: 10.1096/fj.201801511.[pdf]

- Belles, X. 2019. The innovation of the final moult and the origin of insect metamorphosis.Philosophical Transactions of the Royal Society London, B Biological Sciences 374 (1783): 20180415. doi: 10.1098/rstb.2018.0415. [pdf]

- Ventos-Alfonso, A., Ylla, G., Belles, X. 2019. Zelda and the maternal-to-zygotic transition in cockroaches.FEBS J. 286 (16): 3206-3221. [pdf]

- Wexler, J., Delaney, E.K., Belles, X., Schal, C., Wada-Katsumata, A., Amicucci, M.J., Kopp, A. 2019. Hemimetabolous insects elucidate the origin of sexual development via alternative splicing. eLife 8. pii: e47490. doi: 10.7554/eLife.47490. [pdf]

- Belles, X. 2019. The metamorphosis of insects and their regulation. Comptes Rendus Biologies 342: 254-256. [pdf]

- Belles, X. 2019. Kruppel homolog 1 and E93: The doorkeeper and the key to insect metamorphosis. Archives of Insect Biochemistry and Physiology 2019:e21609. doi: 10.1002/arch.21609. [pdf]

2018

- Harrison, M.C., Jongepier, E., Robertson, H.M., Arning, N., Bitard-Feildel, T., Chao, H., Childers, C.P., Dinh, H., Doddapaneni, H., Dugan, S., Gowin, J., Greiner, C., Han, Y., Hu, H., Hughes, D.S.T., Huylmans, A.K., Kemena, C., Kremer, L.P.M., Lee, S,L,, Lopez-Ezquerra, A., Mallet, L., Monroy-Kuhn, J.M., Moser, A., Murali, S.C., Muzny, D.M., Otani, S., Piulachs, M.D., Poelchau, M., Qu, J., Schaub, F., Wada-Katsumata, A., Worley, K.C., Xie, Q., Ylla, G., Poulsen, M., Gibbs, R.A., Schal, C., Richards, S., Belles, X., Korb, J., Bornberg-Bauer. E. 2018. Hemimetabolous genomes reveal molecular basis of termite eusociality. Nature Ecology and Evolution 2(3): 557-566.[pdf]

- Ylla, G., Piulachs, M.-D., Belles, X. 2018. Comparative transcriptomics in two extreme neopterans reveal general trends in the evolution of modern insects. iScience 4: 164-179.[pdf]

- Llonga, N., Ylla, G., Bau, J., Belles, X., Piulachs, M.D. 2018. Differential expression of piRNAs during the ontogeny of Blattella germanica, a short germ-band, hemimetabolan insect. Journal of Experimental Zoology B. Molecular and Developmental Evolution 2018, 1-8.[pdf]

- Harrison, M.C., Arning, N., Kremer, L.P.M., Ylla, G., Belles, X., Bornberg-Bauer, E., Huylmans, A.-K., Jongepier, E., Piulachs, M.D., Richards, S., Schal, C. 2018. Expansions of key protein families in the German cockroach explain the remarkable success of this global indoor pest. Journal of Experimental Zoology B. Molecular and Developmental Evolution 2018, 1-11.[pdf]

- Jongepier, E., Kemena, C., Lopez-Ezquerra, A., Belles, X., Bornberg-Bauer, E., Korb, J. 2018. Remodeling of juvenile hormone pathway through differential gene expression and positive selection along a gradient of termite eusociality. Journal of Experimental Zoology B. Molecular and Developmental Evolution 2018, 1-9.[pdf]

- Rubio M, Maestro JL, Piulachs MD, Belles X. 2018. Conserved association of Argonaute 1 and 2 proteins with miRNA and siRNA pathways throughout insect evolution, from cockroaches to flies. BBA-Gene Regulatory Mechanisms 1861(6): 554-560.[pdf]


2017

- Fernandez-Nicolas, A., Belles, X. 2017. Juvenile hormone signaling in short germ-band hemimetabolan embryos. Development 144:4637-4644.[pdf]

- Ylla, G., Piulachs, M.D., Belles, X. 2017. Comparative analysis of miRNA expression during the development of insects of different metamorphosis modes and germ-band types. BMC Genomics 18(1):774.[pdf]

- Belles X. 2017. MicroRNAs and the Evolution of Insect Metamorphosis. Annual Review of Entomology 62:111-125.[pdf]

- Korb, J., Belles, X. 2017. Juvenile hormone and hemimetabolan eusociality: a comparison of cockroaches with termites. Current Opinion in Insect Science 22:109-116.[pdf]

- Borras-Castells, F., Nieva, C., Maestro, J.L., Maestro, O., Belles, X., Martin, D. 2017. Juvenile hormone biosynthesis in adult Blattella germanica requires nuclear receptors Seven-up and FTZ-F1. Scientific Reports 7:40234. [pdf]

- Lin YH, Huang JH, Liu Y, Belles X, Lee HJ. 2017. Oral delivery of dsRNA lipoplexes to German cockroach protects dsRNA from degradation and induces RNAi response. Pest Management Science 73:960-966.[pdf]



2016

- Ylla G, Fromm B, Piulachs MD, Belles X. 2016. The microRNA toolkit of insects. Scientific Reports 6: 37736.[pdf]

- Fernandez-Nicolas A, Belles X. 2016. CREB-binding protein contributes to the regulation of endocrine and developmental pathways in insect hemimetabolan pre-metamorphosis. Biochimica et Biophysica Acta (General Subjects) 3(8): 160347.[pdf]

- Santos CG, Fernandez-Nicolas A, Belles X. 2016. Smads and insect hemimetabolan metamorphosis. Developmental Biology 417(1): 104-113.[pdf]

- Elias-Neto M, Belles X. 2016. Tergal and pleural structures contribute to the formation of ectopic prothoracic wings in cockroaches. Royal Society Open Science 1860 (3): 508-515.[pdf]

-Naghdi, M., Maestro, J.L., Belles, X., Bandani, A. 2016.Transduction of the vitellogenic signal of juvenile hormone by Methoprene-tolerant in the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae). Arthropods 5(4): 130-137.[pdf]


2015

- Lozano, J., Montañez, R., Belles, X. 2015. MiR-2 family regulates insect metamorphosis by controlling the juvenile hormone signaling pathway. Proceedings of the National Academy of Sciences, USA 112: 3740-3745.[pdf]

- Finn, R. N., Chauvigne, F., Stavang, J. A., Belles, X., Cerdà, J. 2015. Insect glycerol transporters evolved by functional co-option and gene replacement. Nature Communications 6: 7814. doi: 10.1038/ncomms8814.[pdf]

- Ylla, G., Belles, X. 2015. Towards understanding the molecular basis of cockroach tergal gland morphogenesis. A transcriptomic approach. Insect Biochemistry and Molecular Biology 63:104-112.[pdf]

- Jindra, M, Belles, X., Shinoda, T. 2015. Molecular basis of juvenile hormone signaling. Current Opinion in Insect Science 11: 39-46.[pdf]

- Belles, X., Piulachs, M.D. 2015. Ecdysone signalling and ovarian development in insects: from stem cells to ovarian follicle formation. Biochimica et Biophysica Acta 1849: 181-186.[pdf]

- Dillon MB, Schulten V, Oseroff C, Paul S, Dullanty LM, Frazier A, Belles X, Piulachs MD, Visness C, Bacharier L, Bloomberg GR, Busse P, Sidney J, Peters B, Sette A. 2015. Different Bla-g T cell antigens dominate responses in asthma versus rhinitis subjects. Clinical and Experimental Allergy 82: 129-133.[pdf]

- Ons, S.; Belles, X.; Maestro, J. L. 2015. Orcokinins contribute to the regulation of vitellogenin transcription in the cockroach Blattella germanica. Journal of Insect Physiology 45(12): 1856-1867.[pdf]


2014

- Lozano, J., Kayukawa, T., Shinoda, T., Belles, X. 2014. A role for Taiman in insect metamorphosis PLoS Genetics 10 (10): e1004769. doi: 10.1371/journal.pgen.1004769.[pdf]

- Belles, X., Santos, C.G. 2014. The MEKRE93 (Methoprene tolerant-Krüppel homolog 1-E93) pathway in the regulation of insect metamorphosis, and the homology of the pupal stage. Insect Biochemistry and Molecular Biology 52: 60-68. [pdf]

- Lozano, J., Belles, X. 2014. Role of Methoprene-tolerant (Met) in adult morphogenesis and in adult ecdysis of Blattella germanica. PLoS One 9 (7): e103614. doi: 10.1371.[pdf]

- Patiño-Navarrete, R., Piulachs, M.D., Belles, X., Moya, A., Latorre, A., Peretó, J. 2014. The cockroach Blattella germanica obtains nitrogen from uric acid through a metabolic pathway shared with its bacterial endosymbiont.Biology Letters 10 (7). pii: 20140407. doi: 10.1098/rsbl.2014.0407. [pdf]

- Herraiz, A., Belles, X., Piulachs, M.D. 2014. Chorion formation in panoistic ovaries requires windei and trimethylation of histone 3 lysine 9. Experimental Cell Research 320: 46-63. [pdf]


2013

- Huang J-H, Lozano J, Belles X. 2013. Broad-complex functions in postembryonic development of the cockroach Blattella germanica shed new light on the evolution of insect metamorphosis. Biochimica et Biophysica Acta, General Subjects 1830: 2178-2187. [pdf]

- Rubio, M., Montañez, R., Perez, L., Milan, M., Belles, X. 2013. Regulation of atrophin by both strands of the mir-8 precursor. Insect Biochemistry and Molecular Biology 43: 1009-1014. [pdf]

- Garbutt, J. S., Belles, X., Richards, E.H., Reynolds, S.E. 2013. Persistence of double-stranded RNA in insect hemolymph as a potential determiner of RNA interference success: Evidence from Manduca sexta and Blattella germanica. Journal of Insect Physiology 59: 171-178. [pdf]

- Rubio, M., Belles, X. 2013. Subtle roles of microRNAs let-7, miR-100 and miR-125 on wing morphogenesis in hemimetabolan metamorphosis. Journal of Insect Physiology 59: 1089-1094. [pdf]


2012

- Rubio, M., de Horna, A., Belles, X. 2012. MicroRNAs in metamorphic and non-metamorphic transitions in hemimetabolan insect metamorphosis. BMC Genomics 13: 386. doi: 10.1186/1471-2164-13-386. [pdf]

- Lozano, J., Gomez-Orte, E., Lee, H.-J., Belles, X. 2012. Super-induction of Dicer-2 expression by alien double-stranded RNAs. An evolutionary ancient response to viral infection? Development, Genes and Evolution 222: 229-235. [pdf]

- Boher, F., Trefault, N., Piulachs, M.D., Belles, X., Godoy-Herrera, R., Bozinovic, F. 2012. Biogeographic origin and thermal acclimation interact to determine survival and hsp90 expression in Drosophila species submitted to thermal stress. Comparative Biochemistry and Physiology, Part A 162: 391-396. [pdf]

- Chaumot, A., Da Lage, J.L., Maestro, O., Martin, D., Iwema, T., Brunet, F., Belles, X., Laudet, V., Bonneton, F. 2012. Molecular adaptation and resilience of the insect's nuclear receptor USP. BMC Evolutionary Biology 12: 199. doi: 10.1186/1471-2148-12-199. [pdf]

- Huang, J.-H., Belles, X., Lee, H.-J. 2012. Functional characterization of hypertrehalosemic hormone receptor in relation to hemolymph trehalose and to oxidative stress in the cockroach Blattella germanica. Frontiers in Experimental Endocrinology 2: 114. doi: 10.3389/fendo.2011.00114. [pdf]

- Mane-Padrós, D., Borràs-Castells, F., Belles, X., Martín, D. 2012. Nuclear receptor HR4 plays an essential role in the ecdysteroid-triggered gene cascade in the development of the hemimetabolous insect Blattella germanica. Molecular and Cellular Endocrinology 348: 322-330. [pdf]

- Montañez, R., Rodriguez-Caso, C., Belles, X. 2012. MicroRNA-mRNA regulation networks. In: Encyclopedia of Systems Biology (W. Dubitzky, O. Wolkenhauer, K. Cho & H. Yokota, eds.), Springer Science+Business Media, pp. 1354-1357. DOI 10.1007/978-1-4419-9863-7.[pdf]

2011

- Lozano, J., Belles, X. 2011. Conservation of the repressive function of Krüppel homolog 1 on insect metamorphosis in hemimetabolous and holometabolous species. Scientific Reports 1: 163. DOI: 10.1038/srep00163. [pdf]

- Cristino, A. S., Tanaka, E. D., Rubio, M., Piulachs, M.-D., Belles, X. 2011. Deep sequencing of organ- and stage-specific microRNAs in the evolutionarily basal insect Blattella germanica (L.). PLoS One, 6 (4): e19350. [pdf]

- Belles, X. 2011. Origin and Evolution of Insect Metamorphosis. In: Encyclopedy of Life Sciences (ELS). John Wiley and Sons, Ltd: Chichester. DOI: 10.1002/9780470015902.a0022854. [pdf]

- Belles, X., Cristino, A. S., Tanaka, E.D., Rubio, M., Piulachs, M.-D. 2011. Insect MicroRNAs: From Molecular Mechanisms to Biological Roles. In: Insect Molecular Biology and Biochemistry (L.I. Gilbert, ed.), pp. 30-56. Elsevier-Academic Press, Amsterdam. [pdf]

- Clynen, E., Ciudad, L., Belles, X., Piulachs, M.D. 2011. Conservation of fruitless role as master regulator of male courtship behaviour from cockroaches to flies.Development, Genes and Evolution 221: 43-48. [pdf]

- Maestro, J.L., Tobe, S.S., Belles, X. 2011. Leucomyosuppressin modulates cardiac rhythm in the cockroach Blattella germanica. Journal of Insect Physiology 57: 1677-1681. [pdf]

- Herraiz, A., Chauvigne, F., Cerdà, J., Belles, X., Piulachs, M.D. 2011. Identification and functional characterization of an ovarian aquaporin from the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae). Journal of Experimental Biology 214: 3630-3638. [pdf]

- Belles, X. 2011. When inordinate tissue growth is beneficial: Improving silk production by increasing silk gland size. Cell Research 21:862-863.[pdf]

- Folguera, G., Bastías, D. A., Caers, J., Rojas, J. M., Piulachs, M. D., Belles, X., Bozinovic, F. 2011. An experimental test of the role of environmental temperature variability on ectotherm molecular, physiological and life-history traits: implications for global warming. Comparative Biochemistry and Physiology Part A 159 (2011): 242-246. [pdf]


2010

- Belles, X. 2010. Beyond Drosophila. RNAi in vivo and functional genomics in insects. Annual Review of Entomology 55: 111-128. [pdf]

- Piulachs, M.D., Pagone, V., Belles, X. 2010. Key roles of Broad-Complex transcription factors in insect embryogenesis. Insect Biochemistry and Molecular Biology 40: 468-475. [pdf]

- Mane-Padros, D., Cruz, J., Vilaplana, L., Nieva, C., Ureña, E., Belles, X., Martin, D. 2010. The hormonal pathway controlling cell death during metamorphosis in a hemimetabolous insect. Developmental Biology 346: 150-160. [pdf]

- Maestro, J.L., Pascual, N., Treiblmayr, K., Lozano, J., Belles, X. 2010. Juvenile hormone and allatostatins in the German cockroach embryo. Insect Biochemistry and Molecular Biology 40: 660-665. [pdf]


2009

- Belles, X., Gomez-Orte, E. 2009. MicroRNA-dependent metamorphosis in hemimetabolan insects. Proceedings of the National Academy of Sciences, USA 106: 21678-21682. [pdf]

- Revuelta, L., Piulachs, M.D., Belles, X., Castañera, P., Ortego, F., Díaz-Ruíz, J.R., Hernández-Crespo, P., Tenllado, F. 2009. RNAi of ace1 and ace2 in Blattella germanica reveals their differential contribution to acetylcholinesterase activity and sensitivity to insecticides. Insect Biochemistry and Molecular Biology 39: 913-919. [pdf]

- Irles, P., Belles, X., Piulachs M. D. 2009. Brownie, a Gene Involved in Building Complex Respiratory Devices in Insect Eggshells. PLoS ONE 4(12): e8353. doi:10.1371/journal.pone.0008353. [pdf]

- Belles, X. 2009. Origen y Evolución de la Metamorfosis de los Insectos. In: Adaptación y Evolución. 150 años despues del Origen de las Especies (H. Dopazo, A. Navarro, eds.), pp. 191-199. Sociedad Española de Biología Evolutiva. [pdf]

- Maestro, J.L., Cobo, J., Belles, X. 2009. TOR mediates the transduction of nutritional signals into juvenile hormone production. Journal of Biological Chemistry 284 (9): 5506-5513. [pdf]

- Irles, P., Belles, X., Piulachs M. D. 2009. Identifying genes related to choriogenesis in insect panoistic ovaries by Suppression Subtractive Hybridization. BMC Genomics 10: 206. [pdf]

2008

- Pascual, N., Maestro, J. L., Chiva, C., Andreu, D., Belles, X. 2008. Identification of a tachykinin-related peptide with orexigenic properties in the German cockroach. Peptides 29: 386-392. [pdf]

- Vilaplana, Ll., Pascual, N., Perera, N., Leira, D., Belles, X. 2008. Antifeeding properties of myosuppressin in a generalist phytophagous leafworm, Spodoptera littoralis (Boisduval). Regulatory Peptides 148:68-75. [pdf]

- Cruz, J., Nieva, C., Mane-Padrós, D., Martín, D., Belles, X. 2008. The nuclear receptor BgFTZ-F1 regulates molting and the timing of ecdysteroid production during nymphal development in the hemimetabolous insect Blattella germanica. Developmental Dynamics 237: 3179-3191. [pdf]

- Mane-Padrós, D., Cruz, J., Vilaplana, Ll., Pascual, N., Belles, X., Martín, D. 2008. The nuclear hormone receptor BgE75 links molting and developmental progression in the direct-developing insect Blattella germanica. Developmental Biology. 315:147-160. [pdf]

2007

- Ciudad, L., Belles, X., Piulachs M.D. 2007. Structural and RNAi characterization of the German cockroach lipophorin receptor, and the evolutionary relationships of lipoprotein receptors. BMC Molecular Biology 2007, 8: 53. [pdf]
- Vilaplana, Ll., Pascual, N., Perera, N., Belles, X. 2007. Molecular characterization of an inhibitor of apoptosis in the Egyptian armyworm, Spodoptera littoralis, and midgut cell death during metamorphosis. Insect Biochemistry and Molecular Biology 37: 1241-1248. [pdf]

- Martín, D., Piulachs, M.D., Cunillera, N., Ferrer, A., Belles, X. 2007. Mitochondrial targeting of farnesyl diphosphate synthase is a widespread phenomenon in eukaryotes. Biochimica et Biophysica Acta 1773: 419-426. [pdf]
- Cruz, J., Martín, D., Belles, X. 2007. Redundant ecdysis regulatory functions of three nuclear receptor HR3 isoforms in the direct-developing insect Blattella germanica. Mechanisms of Development 124:180-189. [pdf]

2006

- Ciudad, L., Piulachs M.D., Belles, X. 2006. Systemic RNAi of the cockroach vitellogenin receptor results in a phenotype similar to that of the Drosophila yolkless mutant. FEBS Journal 273: 325-335. [pdf]

- Maestro, J.L., Belles, X. 2006. Silencing Allatostatin Expresion Using Double-Stranded RNA Targeted to Preproallatostatin mRNA in the German Cockroach. Archives of Insect Biochemistry and Physiology 62: 73-79. [pdf]

- Martín, D., Maestro, O., Cruz, J. Mane-Padrós, D., Belles, X. 2006.RNAi studies reveal a conserved role for RXR in molting in the cockroach Blattella germanica. Journal of Insect Physiology 52: 410-416. [pdf]

- Cruz, J., Mane-Padrós, Belles, X., Martín, D. 2006. Functions of the ecdysone receptor isoform-A in the hemimetabolous insect Blattella germanica revealed by systemic RNAi  in vivo. Developmental Biology 297: 158-171. [pdf]

- Aguilar, R., Maestro, J.L. and Belles, X. 2006. Effects of myoinhibitory peptides on food intake in the German cockroach. Physiological Entomology 31: 257-261. [pdf]

Treiblmayr, K., Pascual, N., Piulachs, M.D., Keller, T., Belles, X. 2006. Juvenile hormone titer versus juvenile hormone synthesis in female nymphs and adults of the German cockroach, Blattella germanica.Journal of Insect Science. 6: 43. [pdf]

2005

- Belles, X. 2005. Vitellogenesis directed by juvenile hormone. In: Reproductive Biology of Invertebrates. Vol. XII Part B, Progress in Vitellogenesis. Pag: 157-197.

- Belles, X., Martín, D., Piulachs, M.D. 2005. The mevalonate pathway and the synthesis of juvenile hormone in insects. Annual Review of Entomology 50: 181-199. [pdf]

- Raikhel, A.S., Brown, M.R., Belles, X. 2005. Hormonal control of reproductive processes. In: Comprehensive Molecular Insect Science (L. I. Gilbert, K. Iatrou, S. S. Gill, eds.), vol. 3, pp. 432-491. Elsevier, San Diego, California. [pdf]

- Guidugli, K. R., Piulachs, M. D., Belles, X., Lourenço, A. P., Simões, Z. L. P. 2005. Vitellogenin expression in queen ovaries and in larvae of both sexes of Apis mellifera. Archives of Insect Biochemistry and Physiology 59: 211-218. [pdf]

- Maestro, O., Cruz, J., Pascual, N., Martín, D., Belles, X. 2005. Differential expression of two RXR/ultraspiracle isoforms during the life cycle of the hemimetabolous insect Blattella germanica (Dictyoptera, Blattellidae). Molecular and Cellular Endocrinology 238: 27-37. [pdf]

- Belles, X., Maestro, J.L. 2005. Endocrine peptides and insect reproduction. Invertebrate Reproduction and Development 47(1): 23-37. [pdf]

2004

- Aguilar, R., Maestro, J.L., Vilaplana, Ll., Chiva, C., Andreu, D., Belles, X. 2004. Identification of leucomyosuppressin in the German cockroach, Blattella germanica, as an inhibitor of food intake. Regulatory Peptides 119, 105-112. [pdf]

- Vilaplana Ll, Castresana, J, Belles X. 2004. The cDNA for leucomyosuppressin in Blattella germanica and molecular evolution of insect myosuppressins. Peptides 25: 1883-1889. [pdf]

- Pascual, N., Castresana, J., Valero, M.-L., Andreu, D., Belles, X. 2004. Orcokinins in insects and other invertebrates. Insect Biochemistry and Molecular Biology 34: 1141-1146. [pdf]

2003

- Aguilar, R., Maestro, J.L., Vilaplana, Ll., Pascual, N., Piulachs, M.D., Belles, X. 2003. Allatostatin gene expression in brain and midgut, and activity of synthetic allatostatins on feeding-related processes in the cockroach Blattella germanica. Regulatory Peptides 115: 171-177. [pdf]

- Piulachs, M.D., Guidugli, K.R., Barchuk, A.R., Cruz, J., Simões, Z.L.P., Belles, X.  2003. The vitellogenin of the honey bee, Apis mellifera. structural analysis of the cDNA and expression studies. Insect Biochemistry and Molecular Biology 33: 459-465. [pdf]

- Zapata, R., Piulachs, M.D., Belles, X. 2003. Inhibitors of 3-hydroxy-3-methylglutaryl-CoA reductase decrease fertility in the German cockroach. Correlation between sterilisation in vivo with the inhibition of enzymatic activity in embryo cells. Pest Management Science 59: 1111-1117. [pdf]

- Cruz, J., Martín, D., Pascual, N., Maestro, J. L., Piulachs, M.D., Belles, X. 2003. Quantity does matter. Juvenile hormone and the onset of vitellogenesis in the German cockroach. Insect Biochemistry and Molecular Biology 33: 1219-1225. [pdf]

2002

- Zapata R., Martín, D., Piulachs, M.D., Belles, X. 2002. Effects of hypocholesterolaemic agents on the expression and activity of 3-hydroxy-3-methylglutaryl-CoA reductase in the fat body of the German cockroach. Archives of Insect Biochemistry and Physiology 49:177–186. [pdf]

- Zapata R., Piulachs, M.D., Belles, X. 2002. Ovarian 3-hydroxy-3-methylglutaryl-CoA reductase in Blattella germanica (L.). Pattern of expression and critical role on embryogenesis. Journal of Insect Physiology 48: 675-681. [pdf]

- Belles, X., Piulachs, M.D., Maestro, J.L., Martín, D. 2002. Insect Vitellogenesis in Juvenile Hormone-dependent Species. Proceedings of the 21st Conference of European Comparative Endocrinologists, pp. 213-218. Monduzzi ed. [pdf]

2001

- Casals, N., Buesa, C., Marrero, P., Belles, X., Hegardt, F.G. 2001. 3-Hydroxy-3-methylglutaryl coenzyme A synthase-1 of Blattella germanica has structural and functional features of an active retrogene. Insect Biochemistry and Molecular Biology 31: 425-433. [pdf]

- Maestro, J.L., Aguilar, R., Pascual, N., Valero, M.-L., Piulachs, M.-D., Andreu, D.,  Navarro, I., Belles, X. 2001. Screening of antifeedant activity in brain extracts led to the identification of sulfakinin as a satiety promoter in the German cockroach. Are arthropod sulfakinins homologous to vertebrate gastrins-cholecystokinins? European Journal of Biochemistry 268: 5824-5830. [pdf]

- Comas, D., Piulachs, M.D., Belles, X. 2001. Induction of vitellogenin gene transcription in vitro by juvenile hormone in Blattella germanica. Molecular and Cellular Endocrinology 183: 93-100. [pdf]

2000

- Peralta, E., Vilaplana, Ll., Pascual, N., Carreño, C., Piulachs, M.-D., Andreu D., Belles X. 2000.A microdialysis study of allatostatin degradation in Blattella germanica (L.) (Dictyoptera, Blattellidae). Physiological Entomology 25: 254-259. [pdf]
- Duportets, L., Belles, X., Rossignol F., Couillaud, F. 2000. Molecular cloning and structural analysis of  3-hydroxy-3- methylglutaryl coenzyme A reductase of the moth Agrotis ipsilon. Insect Molecular Biology 9: 385-392. [pdf]

- Comas, D., Piulachs, M.-D., Belles, X. 2000. Vitellogenin of Blattella germanica (L.) (Dictyoptera, Blattellidae): nucleotide sequence of the cDNA and analysis of the protein primary structure. Archives of Insect Biochemistry and Physiology 44: 1-11. [pdf]

- Belles, X., Piulachs, M. D., Pascual, N., Maestro, J. L., MartínD. 2000. On the role of Juvenile Hormone in vitellogenesis in cockroaches : A reply to Holbrook et al. Physiological Entomology (2000) 25, 27–34. Juvenile Hormone is essential to induce vitellogenesis in the German cockroach, also in Barcelona. Physiological Entomology 25: 207-208. [pdf]

1999

- Belles, X., Graham, L.A., Bendena, W.G., Ding, Q., Edwards, J.P., Weaver, R.J., Tobe, S.S. 1999. The molecular evolution of the allatostatin precursor in cockroaches. Peptides 20: 11-22. [pdf]

- Vilaplana, L., Maestro, J.L., Piulachs, M.D., Belles, X. 1999. Determination of allatostatin content in relation to the gonadotropic cycle in the female of Blattella germanica (L.) (Dictyoptera, Blattellidae). Physiological Entomology 24: 213-219. [pdf]

- Vilaplana, L., Maestro, J.L., Piulachs, M.D., Belles, X. 1999. Modulation of cardiac rhythm by allatostatins in the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae). Journal of Insect Physiology 45: 1057-1064. [pdf]

- Belles, X., Piulachs, M.D., Pascual, N., Maestro, J.L., Martin D., Vilaplana Ll. 1999. Regulation of vitellogenesis in the German cockroach and the problem of cyclicity. In: Recent Developments in Comparative Endocrinology and Neurobiology (E. Roubos, W. Bonga, H. Vaudry, A. De Loof, eds.). pp. 223-227. Shaker, Maastricht.

- Comas, D., Piulachs, M.D., Belles, X. 1999. Fast induction of vitellogenin gene expression by juvenile hormone III in the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae).Insect Biochemistry and Molecular Biology 29: 821-827. [pdf]

1998

- Belles, X. 1998. Endocrine effectors in insect vitellogenesis. In: Recent Advances in Arthropod Endocrinology (G.M. Coast and S.G. Webster, eds.), pp. 71-90. Cambridge University Press, Cambridge.[pdf]

- Martin, D., Piulachs, M.D., Belles, X. 1998. Allatostatin inhibits vitellogenin release in a cockroach. Annals of the New York Academy of Sciences 839: 241-242.[pdf]

- Maestro, J.L., Belles, X., Piulachs, M.D., Thorpe, A., Duve, H. 1998. Localization of allatostatin-immunoreactive material in the central nervous system, stomatogastric nervous system, and gut of the cockroach Blattella germanica. Archives of Insect Biochemistry and Physiology 37: 269-282. [pdf]

- Martin, D., Piulachs, M.D., Comas, D., Belles, X. 1998. Isolation and sequence of a partial vitellogenin cDNA from the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae), and characterization of the vitellogenin gene expression. Archives of Insect Biochemistry and Physiology 38: 137-146. [pdf]

- Osorio, S., Piulachs, M.D., Belles, X. 1998. Feeding and activation of corpora allata in the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae).Journal of Insect Physiology 44: 31-38. [pdf]

1997

- Casals, N., Martín, D., Buesa, C., Piulachs, M.D., Hegardt, F.G., Belles, X. 1997. Expression and activity of 3-hydroxy-3-methylglutaryl-CoA synthase and reductase in the fat body of ovariectomized and allatectomized Blattella germanica. Physiological Entomology 22: 6-12. [pdf]

- Piulachs, M.D., Vilaplana, Ll., Bartolome, J.M., Carreño, C.,  Martín, D, González-Muñiz, R., Herranz, R., García-López, M.T., Andreu, D., Belles, X. (1997). Ketomethylene and methyleneamino pseudopeptide analogues of insect allatostatins inhibit juvenile hormone and vitellogenin production in the cockroach Blattella germanica. Insect Biochemistry and Molecular Biology 27: 851-858.

- Belles, X., Piulachs, M.D. 1997. Alatostatinas. Una familia singular de neuropeptidos de insectos. In: Peptidos en biología y biomedicina (D. Andreu y L. Rivas, eds.). pp. 349-373. Colección Nuevas tendencias, CSIC, Madrid.

1996

- Martín, D., Piulachs, M.D., Belles, X. 1996. Production and extraovarian processing of vitellogenin in ovariectomized Blattella germanica (L.) (Dictyoptera, Blattellidae). Journal of Insect Physiology 42: 101-105.

- Feliubadaló, E., Vilaplana, Ll., Belles, X. 1996. Morphology and protein pattern of the accessory reproductive glands of male Blattella germanica (L.) (Dictyoptera, Blattellidae). European Journal of Entomology 93: 211-221.[pdf]

- Vilaplana, Ll., Piulachs, M.D., Belles, X. 1996. Inhibition of juvenile hormone during the formation of the spermatophore in Blattella germanica (L.) (Dictyoptera, Blattellidae). Archives of Insect Biochemistry and Physiology  32: 559-566.

- Vilaplana, Ll., Piulachs, M.D., Belles, X. 1996. The conglobate gland of Blattella germanica (L.) (Dictyoptera, Blattellidae). Maturation, juvenile hormone dependency and changes during spermatophore formation. Invertebrate Reproduction and Development 29: 167-172.

- Casals, N., Buesa, C., Piulachs, M.D., Cabañó, J., Marrero, P.F., Belles, X.& Hegardt, F.G. 1996. Coordinated expression and activity of 3-hydroxy-3-methylglutaryl Coenzime A synthase and reductase in the fat body of Blattella germanica (L.) during vitellogenesis. Insect Biochemistry and Molecular Biology 26: 837-843.

- Martín, D., Piulachs, M.D., Belles, X. 1996. Inhibition of vitellogenin production by allatostatin in the German cockroach. Molecular and Cellular Endocrinology 121: 191-196.


1995

- Romaña, I., Pascual, N., Belles, X. 1995. The ovary is a source of circulating ecdysteroids in Blattella germanica (L.) (Dictyoptera, Blattellidae). European Journal of Entomology 92: 93-103.
- Martín, D., Piulachs, M.D., Belles, X. 1995. Production of vitellogenin in vitro by the periovaric fat body of Blattella germanica (L.) (Dictyoptera, Blattellidae). Invertebrate Reproduction and Development 28:171-176. [pdf]

- Martín, D., Piulachs, M.D., Belles, X. 1995. Patterns of haemolymph vitellogenin and ovarian vitellin in the German cockroach, and the role of juvenile hormone. Physiological Entomology 20: 59-65.

- Pascual, N., Belles, X., Delbecque, J.P., Hua, Y.J., Koolman, J. 1995. Quantification of ecdysteroids by immunoassay: comparison of enzyme immunoassay and radioimmunoassay. Zeitschrift fur Naturforschungen 50: 862-867.

- Belles, X. 1995. Interactions between corpora allata, fat body and ovary in insect reproduction: which controls which? Netherlands Journal of Zoology 45 (1-2): 152-156.

1994

- Buesa, C., Martínez-Gonzalez, J., Casals, N., Haro, D., Piulachs, M.D., Belles, X., Hegardt, F.G. 1994. Blattella germanica has two HMG-CoA synthase genes. Both are regulated in the ovary during gonadotrophic cycle. Journal of Biological Chemistry 269: 11707-11713. [pdf]

- Belles, X., Maestro, J.L., Piulachs, M.D., Johnsen, A., Duve, H., Thorpe, A. 1994. Allatostatic neuropeptides from the cockroach Blattella germanica (L.) (Dictyoptera, Blattellidae). Identification, immunolocalization and activity. Regulatory Peptides 53: 237-247.

- Maestro, J.L., Danes, M.D., Piulachs, M.D., Cassier, P., Belles, X. 1994. Juvenile Hormone inhibition in corpora allata from ovariectomized Blattella germanica (L.) (Dictyoptera, Blattellidae). Physiological Entomology 19: 342-348.

1993

- Cassier, P., Andre, M., Pastor, D., Piulachs, M.D., Belles, X. 1993. Age-dependent neurosecretion release induced by dopamine in the corpora cardiaca of Blattella germanica (L.) (Dictyoptera: Blattellidae). International Journal of Insect Morphology and Embryology 22(1): 1-11.

- Maestro, J.L., Piulachs, M.D., Belles X. 1993. Autoinhibition of juvenile hormone production. The case of the cockroach Blattella germanica (L.). Experientia 49: 320-323.

- Martínez-Gonzalez, J., Buesa, C., Piulachs, M.D., Belles, X., Hegardt F.G. 1993. Molecular cloning, developmental pattern and tissue expression of 3-hydroxy-3-methylglutaryl coenzime A reductase of the cockroach Blattella germanica. European Journal of Biochemistry 213: 233-241. [pdf]

- Belles, X., Cassier, P., Cerdá, X., Pascual, N., Andre, M., Rosso, Y., Piulachs M.D. 1993. Induction of choriogenesis by 20-hydroxyecdysone in the German cockroach. Tissue and Cell 25(2): 195-204.

- Martínez-Gonzalez, J., Buesa, C., Belles, X., Piulachs, M.D., Hegardt F.G. 1993. 3-Hydroxy-3-methylglutaryl-coenzime A synthase from Blattella germanica. Cloning, expression, developmental pattern and tissue expression. European Journal of Biochemistry 217: 691-699. [pdf]

1992

- Pascual, N., Cerdá, X., Benito, B., Tomás, J., Piulachs M.D., Belles, X. 1992. Ovarian ecdysteroid levels and basal oocyte development during maturation in the cockroach Blattella germanica (L.). Journal of Insect Physiology 38: 339-348.

- Piulachs, M.D., Maestro, J.L., Belles, X. 1992. Juvenile hormone production and accessory reproductive gland development during sexual maturation of male Blattella germanica (L.) (Dictyoptera, Blattellidae). Comparative Biochemistry and Physiology 102A: 477-480.

- González, A.G., Jimenez, I.A., Ravelo, A.G., Belles, X., Piulachs, M.D. 1992. Antifeedant activity of Dihydro-ß-agarofuran sesquiterpenes from celastraceae against Spodoptera littoralis. Biochemical Systematics and Ecology 20: 311-315.

- García-Alonso, M., Piulachs, M.D., Belles, X. 1992. Influencia de los corpora allata en el desarrollo de las glándulas sexuales accessorias del macho de Blatta orientalis. Revista Española de Fisiología 48(2): 77-82.

- Belles, X., Piulachs, M.D. 1992. Juvenile hormone and maturation of male accessory reproductive glands in the cockroach Blattella germanica (L.). In: Insect Juvenile Hormone research: fundamental and applied approaches (B. Mauchamp, F. Couillaud, J.C. Baehr Eds.) pp. 101-109. INRA, Paris.

- Ylla, J., Belles, X. 1992. Determinismo endocrino de la diapausa pupal en Graellsia isabelae (Graells) (Lepidoptera, Saturniidae). Efecto de la 20-hidroxiecdisona. Ecología 6: 297-302.

1991

- Pastor, D., Artigas, F., Martinez, E., Belles, X. 1991. Brain levels of 5-hydroxytryptamine and dopamine in Blattella germanica adult females during the gonadotrophic cycle. Biogenic Amines 8(2): 109-114.

- Pastor, M.D., Piulachs, M.D., Cassier, P., Andre, M., Belles, X. 1991. Etude in vivo et in vitro de l'action de la dopamine sur la croissance des ovocytes et la production d'hormone juvenile chez Blattella germanica (L.) (Dictyoptera; Blattellidae). Comptes Rendus de l’Academie de Sciences de Paris 313: 207-212.

1990

- Belles, X., Camps, F., Casas, J., Mauchamp, B., Piulachs, M.D., Messeguer, A. 1990. Stimulating action of methyl 12, 12,12-trifluorofarnesoate on in vitro juvenile hormone III biosynthesis in Blattella germanica. Archives of Insect Biochemistry and Physiology 11: 257-270.

- Tamarelle, M., Belles, X., Piulachs, M.D., Girardie, J. 1990. Gastrincholecystokinin-like and neuroparsin-like immunoreactivities in the brain and retrocerebral neuroendrocine complex of the cockroach Blattella germanica. Histochemistry 93: 433-438.

- Pascual, N., Marco, M.P., Belles, X. 1990. Azadirachtin induced imaginal moult deffiencies in Tenebrio molitor L. (Coleoptera, Tenebrionidae). Journal of Stored Products Research 26: 53-57.

- Marco, M.P., Pascual, N., Belles, X., Camps, F., Messeguer, A. 1990. Ecdysteroid depletion by azadirachtin in Tenebrio molitor pupae. Pesticide Biochemistry and Physiology 38: 60-65.
- Cerdà, X., Pastor, D. Belles, X. 1990. Efecto de la sustancia real de la abeja (ácido (E)-9-oxo-2-decenoico) sobre la cucaracha Blattella germanica. Boletín de Sanidad vegetal y control de Plagas 16: 347-353.

1989

- Piulachs, M.D., Belles, X. 1989. Stimulatory activity of cysteamine on juvenile hormone release in adult females of the cockroach Blatella germanica. Comparative Biochemistry and Physiology 94A: 795-798.

- Benito, B., Belles, X. 1989. Inici de la incorporació de vitel.logenina als oòcits de Blattella germanica durant el primer cicle reproductiu. Sessió d’Entomologia. ICHN-SCL, 5: 9-12.

- Piulachs, M.D., Cassier, P., Belles, X. 1989. Ultrastructural changes induced by precocene II and 3,4-dihydroprecocene II in the corpora allata of Blattella germanica. Cell and Tissue Research 258: 91-99.

- Belles, X.,  Piulachs, M.D. 1989. Occurrence of brain allatostatic factor in the cockroach Blattella germanica. Acta entomologica Bohemoslovaca 86: 161-166.

1988

- Belles, X., Camps, F., Casas, J., Messeguer, A., Piulachs, M.D. 1988. In vitro inhibition of juvenile hormone III biosynthesis by precocene II and 3,4-dihydroprecocene II on Blattella germanica. Journal of Insect Physiology 34 (6): 457-461.

- Piulachs, M.D., Belles, X. 1988. Influencia de la cópula en la duración del primer ciclo gonotrófico y en la formación de la ooteca de Blattella germanica. Boletín de Sanidad vegetal y control de Plagas 14: 357-362.

- Belles, X., Camps, F., Casas, J., Lloria, J., Messeguer, A., Piulachs, M.D., Sánchez, F. J. 1988. In vivo and in vitro effects of compactin in liposome carriers on juvenile hormone biosynthesis in adult females of Blattella germanica. Pesticide Biochemistry and Physiology 32: 1-10.

- Belles, X., Piulachs, M.D. 1988. Effects of somatostatin on in vitro juvenile hormone III release in Blattella germanica (L.). (Dictyoptera, Blattellidae). In: Endrocrinological Frontiers in Physiological Insect Ecology (Sehnal, F., Zabza, A. and Denlinger, D.L., eds.) pp. 875-879. Wroclaw Technical University Press,Wroclaw.

- Belles, X., Fabriàs, M., Piulachs, M.D. 1988. Antifeedent effects of precocenes on Spodoptera littoralis (Boisduval) (Lepidoptera, Noctuidae). In: Endocrinological Frontiers in Physiological Insect Ecology (F. Sehnal, A. Zabza and D.L. Delinger, eds) pp. 75-79, Wroclaw Technical University Press,Wroclaw.

- Belles, X., Piulachs, M.D. 1988. Modulation by Somatostatin of Juvenile Hormone Release in a Cockroach. Naturwissenschaften 75: 413-415.

- Belles, X. 1988. Las hormonas endocrinas de los insectos. Bases conceptuales para el diseño de insecticidas biorracionales. In: Insecticidas biorracionales (X. Belles, ed.) pp. 15-67, CSIC. Colección Nuevas Tendencias, Madrid.

1987

- Belles, X., Galofre, A., Ginebreda, A. 1987. Taxonomic potential of the chemical constituents in the cephalic marking secretions of Bombus and Psithyrus species (Hymenoptera, Apidae): A numerical taxonomic study. Apidologie 18 (3): 231-242.

- Belles, X., Baldellou, M.I., Messeguer, A. 1987. Synergistic action of diethyl maleate on the morphogenetic and antigonadotropic activity of Precocenes on the Seed Bug Oxycarenus lavaterae (F.). Archives of Insect Biochemistry and Physiology 4: 107-112.

- Belles, X., Casas, J., Messeguer, A., Piulachs, M. D. 1987. In vitro biosynthesis of JH III by the corpora allata of Blattella germanica (L.) adult females. Insect Biochemistry 17 (7): 1007-1010.

1986

- Camps, F., Belles, X. 1986. Inhibidores de las hormonas juveniles de insectos. In: Bioquímica y Biología molecular (L. Leloir, S. Ochoa, J. Oró, A. Sols, Eds.), pp. 70-75. Salvat, Barcelona.

- Baldellou, M.I. y Belles, X. 1986. Effects of precocenes on ovarian development of the Seed bug, Oxycarenus lavaterae (F.). Revista Española de Fisiología 42 (3): 315-318.

- Casas, J., Roselló, J., Gelpí, E., Belles, X., Camps, F., Baldellou, M.I., Messeguer, A., Piulachs, M.D. 1986. Determination by HPLC-RIA of immunoreactive prostaglandin E2 in Blattella germanica and Gryllus bimaculatus. Revista Española de Fisiología 42 (4): 507-512.

1985

- Belles, X., Galofre, A. Ginebreda, A. 1985. Feromonas: relaciones entre la estructura química y la taxonomía. Un ejemplo de aplicación a algunas familias de Lepidópteros. Afinidad 42 (396): 147-157.

- Belles, X., Messeguer, A., Piulachs, M. D. 1985. Sterilization induced by Precocenes on females of Blattella germanica (L.): short- and long-term effects. Zeitschrift fur Angewandte Entomologie 100 (4): 409-417.

- Belles, X., Camps, F., Coll, J., Piulachs, M.D. 1985. Insect antifeedant activity of clerodane diterpenoids against larvae of Spodoptera littoralis (Boisd.) (Lepidoptera). Journal of Chemical Ecology 11 (10): 1439-1445.

- Belles, X., Fabriàs, M. 1985. Observaciones sobre el ciclo biológico de Spodoptera littoralis (Boisduval) (Lepidoptera, Noctuidae) en condiciones de laboratorio. Boletim da Sociedade Portuguesa de Entomologia (Suplemento 1) 3: 421-427.

- Casas, J., Roselló, J., Gelpí, E., Belles, X., Camps, F., Baldellou, M.I., Messeguer, A., Piulachs, M.D. 1985. Determinación de prostaglandina E inmunoreactiva en adultos de Blattella germanica (L.) (Dictyoptera, Blattellidae) y de Gryllus bimaculatus De Geer (Orthoptera, Gryllidae). Boletim da Sociedade portuguesa de Entomologia (Suplemento 1) 3: 429-437).

- Belles, X., Messeguer, A., Piulachs, M.D.1985. Efectos antagonistas de la hormona juvenil inducidos por los Precocenos sobre hembras de Blattella germanica (L.) (Dictyoptera, Blatellidae). Boletim da Sociedade portuguesa de Entomologia (Suplemento 1) 3: 393-402.

1984

- Belles, X., Favila, M.E. 1984. Protection chimique du nid chez Canthon cyanellus cyanellus LeConte (Col. Scarabaeidae). Bulletin de la Societe entomologiques de France 88: 602-607.

- Belles, X., Baldellou, M.I., Piulachs, M.D. 1984. Actividad ovicida del precoceno 2 sobre la galeruca del aliso, Agelastica alni (Col. Chrysomelidae). Boletín de la Estación Central de Ecología 13 (25): 97-99.

- Belles, X., Baldellou, M.I. y Piulachs, M.D. 1984. Influence du traitement par des precocenes sur le comportement sexuel d'Oxycarenus lavaterae (F.) (Heteroptera, Lygaeidae) et de Blatella germanica (L.) (Dictyoptera, Blattellidae)". In: Processus d'acquisition precoce. Le communications (A. de Haro et X. Espadaler eds.) pp. 53-56. Publicaciones de la Universidad Autónoma de Barcelona et Societe Française pour l'etude du Comportement Animal.

1983

- Cuevas, P., Montoya, R., Belles, X., Camps, F., Coll, J., Guerrero, A., Riba, M. 1983. Initial field trials with the synthetic sex pheromone of the processionary moth Thaumetopoea pityocampa (Denis and Schiff). Journal of Chemical Ecology 9 (1): 85-93.

- Belles, X., Baldellou, M.I. 1983. Tiempo de permanencia en la fase de tratamiento con precocenos y adquisición de caracteres adultoides en Oxycarenus lavaterae (F.) (Heteroptera, Lygaeidae). Actas del I Congreso Iberico de Entomología, 1, pp. 95-99. Leon.

- Belles, X.,  Piulachs, M.D. 1983. Actividad fagorrepelente del acetato de trifenilestaño sobre larvas de Spodoptera littoralis (Boisduval) (Lepidoptera, Noctuidae). Actas del I Congreso Iberico de Entomología, 1, pp. 101-105. Leon.

- Camps, F., Baldellou, M.I., Belles, X., Coll, J., Colomina, O., Messeguer, A., Ricart, S. 1983. Design of anti-JH compounds related to Precocenes. In: Pesticide Chemistry: Human Welfare and the Environment (J. Miyamoto et al., eds.), pp. 183-186, Pergamon Press.

- Belles, X.,  Piulachs, M.D. 1983. Desarrollo de los corpora allata, oocitos y glándulas colaterales durante el primer ciclo gonotrófico de Blattella germanica (L.). Revista Española de Fisiología 39: 149-154.

- Belles, X., Camps, F., Coll, J., Guerrero, A., Rica, M. 1983. Synthesis and biological activity of some dialkyl-3-7-dimethyl-2,6-octadienyloxyphenyl and 3,7,11-trimethyl-2,6,10-dodecatrienyloxyphenyl phosphates and their epoxides. Anales de Química (Serie C) 79: 432-436.

- Belles, X., Baldellou, M.D. 1983. Precocious metamorphosis induced by precocenes on Oxycarenus lavaterae. Entomologia Experimentalis et Applicata 39: 129-133.

1982

- Belles, X. 1982. Optimization of Insect Juvenile Hormone Bioassays on Tribolium confusum (DuV) (Coleoptera: Tenebrionidae) by application of Central Composite Rotatable Designs. Journal of Stored Products Research, 18: 21-25.

- Cuevas, P., Montoya, R., Belles, X., Camps, F., Coll, J., Guerrero, A., Riba, M. 1982. Application of the (Z)-13-hexadecen-11-ynyl acetate as a potential control agent of the processionary moth Thaumetopoea pityocampa (Denis and Schiff). In: Les mediateurs chimiques. Les Colloques de l'INRA, 7, pp. 305-313, INRA.

- Belles, X., Ventura, J. 1982. Actividad repelente de 4 biomimeticos de la hormona juvenil de insectos, frente a adultos de Tribolium confusum J. Duval (Col. Tenebrionidae). Anales del INIA Serie Agrícola 18: 111-115.

1981

- Belles, X., Ventura, J.1981. Effects of several juvenoids against pupae of Conomorium patulum (Walker) (Hymenoptera, Pteromalidae). In: Regulation of Insect Development and Behaviour, vol. 2, pp. 835-840, Technical University of Wroclaw, Wroclaw.

- Cuevas, P., Montoya, R., Belles, X., Camps, F., Coll, J., Guerrero, A., Riba, M. 1981. Aplicación del acetato de (Z)-13-hexadecen-11-inilo como agente de control potencial de la Procesionaria del pino. Comunicaciones de la VII Jornada de Productos Fitosanitarios, pp. 77-83, Barcelona.

- Belles, X., Messeguer, A. 1981. Sterilizing effects of 6,7-dimethoxy-2,2-dimethyl-chromene (Precocene 2) and 6,7-dimethoxy-2,2-dimethylchroman on Blattella germanica (L.)". In: Juvenile Hormone Biochemistry (G.E. Pratt and G.T. Brooks, eds.), pp. 421-424, Elsevier-North Holland Biomedical Press.

1980

- Belles, X., Camps, F., Coll, J., Messeguer, A., Seba, M.E., Roca, A. 1980. Biomimeticos de la hormona juvenil de insectos. Síntesis y actividad biológica. Comunicaciones del III Congreso Nacional de Química (EFCE Publication Series 12) 1: 467-472, Sevilla.

- Cuevas, P., Enriquez, L., Montoya, R., Belles, X., Camps, F., Coll, J., Guerrero, A., Riba, M., Lalanne-Cassou, B. y Gallois, M. 1980. Contribución al conocimiento de la feromona sexual de la Procesionaria del Pino. Comunicaciones del III Congreso Nacional de Química (EFCE Publication Series 12) 1: 473-476, Sevilla.

1979

- Belles, X. 1979. Perspectives to control the cigarette beetle, Lasioderma serricorne (F.) (Col. Anobiidae), with juvenile hormone bioanalogues (Translated from Spanish). Boletín del Servicio de Plagas 5 (2): 157-163.