Mispatterning in the ommatidia of Apis mellifera pupae treated with a juvenile hormone analogue

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dc.contributor.authorBoleli, I. C.
dc.contributor.authorBitondi, MMG
dc.contributor.authorFigueiredo, VLC
dc.contributor.authorSimoes, ZLP
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:24:02Z
dc.date.available2014-05-20T15:24:02Z
dc.date.issued2001-08-01
dc.description.abstractTo further understand the function of morphogenetic hormones in honeybee eye differentiation, the alterations in ommatidial patterning induced by pyriproxyfen, a juvenile hormone (JH) analogue, were studied by scanning and transmission electron microscopy. Prepupae of prospective honeybee workers were treated with pyriproxyfen and the effects on ommatidial differentiation were described at the end of the pupal development. The results show that the entire ommatidia, i.e., the dioptric as well as the receptor systems, were affected by the JH analogue. The wave of ommatidial differentiation, which progresses from the posterior to the anterior region of the pupal eyes, was arrested. In treated pupae, the rhabdomeres only differentiated at the apical axis of the retinula, the secondary and tertiary pigment cells did not develop their cytoplasm protrusions, and the cone cell quartet did not pattern correctly. Simultaneously, an intense vacuolization was observed in cells forming ommatidia. In a previous study we showed that pyriproxyfen exerts an inhibition on pupal ecdysteroid secretion. In this sense, the arrested ommatidial differentiation in pyriproxyfen-treated pupae could be due to a secondary effect resulting from an alteration in pupal ecdysteroid titers. J. Morphol. 249:89-99, 2001. (C) 2001 Wiley-Liss, Inc.en
dc.description.affiliationUniv São Paulo, Fac Filosofia Ciências & Letras Ribeirao Pret, Dept Biol, BR-14040901 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciências Agr & Vet, Dept Morfol & Fisiol Anim, São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciências Agr & Vet, Dept Morfol & Fisiol Anim, São Paulo, Brazil
dc.format.extent89-99
dc.identifierhttp://dx.doi.org/10.1002/jmor.1042
dc.identifier.citationJournal of Morphology. New York: Wiley-liss, v. 249, n. 2, p. 89-99, 2001.
dc.identifier.doi10.1002/jmor.1042
dc.identifier.issn0362-2525
dc.identifier.lattes6898054718775223
dc.identifier.urihttp://hdl.handle.net/11449/34699
dc.identifier.wosWOS:000170172100002
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Morphology
dc.relation.ispartofjcr1.711
dc.relation.ispartofsjr0,766
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectommatidiapt
dc.subjecteyept
dc.subjectApis melliferapt
dc.subjectjuvenile hormone analoguept
dc.subjectpyriproxyfenpt
dc.titleMispatterning in the ommatidia of Apis mellifera pupae treated with a juvenile hormone analogueen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.lattes6898054718775223
unesp.author.orcid0000-0002-5619-6378[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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Artigos - Morfologia e Fisiologia Animal - FCAV