Ultrastructure of the ovariole sheath in Diatraea saccharalis (Lepidoptera: Pyralidae)

Página do item simplificado
dc.contributor.authorDos Santos, Daniela Carvalho [UNESP]
dc.contributor.authorGregório, Elisa Aparecida [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:55:26Z
dc.date.available2022-04-28T19:55:26Z
dc.date.issued2002-09-23
dc.description.abstractThe ultrastructure of the ovariole sheath along the Diatraea saccharatis ovariole was studied by scanning and transmission electron microscopy. Each ovariole is surrounded by an epithelial sheath, a tunica propria and scattered lumen cells. These three components of the ovariole sheath show different ultrastructural features along the ovariole, in the germarium or in the vitellarium; these differences are more evident in the epithelial sheath cells. The epithelial sheath is composed by two layers of cells, the external one running longitudinally and the internal one running circularly in the ovariole. These cells, in vitellarium, present cytoplasmic bundles of myofilaments that are arranged parallel to the long axis of the cells; these myofilaments are apparently related to the contraction movements of the follicles within the ovariole. The acellular tunica propria, composed of finely filamentous material, is attached to the adjacent follicle cells by adhesive dense plates. Between the epithelial sheath and the tunica propria there is a population of lumen cells, with morphological features of secretory activity.en
dc.description.affiliationCentro de Microscopia Eletronica Instituto de Biociências Universidade Estadual Paulista, Campus de Botucatu, Botucatu, S.P., 18618-000
dc.description.affiliationUnespCentro de Microscopia Eletronica Instituto de Biociências Universidade Estadual Paulista, Campus de Botucatu, Botucatu, S.P., 18618-000
dc.format.extent229-235
dc.identifier.citationBiocell, v. 26, n. 2, p. 229-235, 2002.
dc.identifier.issn0327-9545
dc.identifier.scopus2-s2.0-0036037702
dc.identifier.urihttp://hdl.handle.net/11449/224231
dc.language.isoeng
dc.relation.ispartofBiocell
dc.sourceScopus
dc.subjectElectron microscopy
dc.subjectEpithelial sheath
dc.subjectLumen cells
dc.subjectTunica propria
dc.titleUltrastructure of the ovariole sheath in Diatraea saccharalis (Lepidoptera: Pyralidae)en
dc.typeArtigo

Arquivos

Coleções

Botucatu - CME - Centro de Microscopia Eletrônica