Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae)
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.org.ar/scielo.php?pid=S0327-95452004000200006&script=sci_arttext http://hdl.handle.net/11449/36152 |
Resumo: | The Lyonet's gland is found in Lepidoptera larvae, close to the excretory duct of the silk gland. The role played by this gland is still uncertain. This work aims to describe the ultrastructure of the Lyonet's bland in Diatraea saccharalis larvae, offering suggestions regarding its possible function. The insects were reared under laboratory-controlled conditions. The glands were conventionally prepared for transmission (TEM) and scanning (SEM) electron microscopy. SEM showed that Lyonet's glands are paired small structures located in the ventral side of the head. They are composed by clustered long cells resembling leaves. Under TEM observations, each cell is surrounded by a thin basal lamina and contains large stellate nucleus. The cytoplasm presents large and empty canaliculi with small microvilli. The basal plasma membrane forms numerous infoldings where numerous and well-developed mitochondria are concentrated. The cytoplasmic membrane system is poorly developed. Our ultrastructural results suggest that the Lyonet's gland in D. saccharalis larvae may be involved in the uptake of small molecules from the hemolymph no morphological evidences of macromolecules synthesis and secretion were noticed. The detection of nerve fibers in the gland suggest a neural control for the glandular cell function. |
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Repositório Institucional da UNESP |
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spelling |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae)accessory glandinsectsugarcane borermorphologyThe Lyonet's gland is found in Lepidoptera larvae, close to the excretory duct of the silk gland. The role played by this gland is still uncertain. This work aims to describe the ultrastructure of the Lyonet's bland in Diatraea saccharalis larvae, offering suggestions regarding its possible function. The insects were reared under laboratory-controlled conditions. The glands were conventionally prepared for transmission (TEM) and scanning (SEM) electron microscopy. SEM showed that Lyonet's glands are paired small structures located in the ventral side of the head. They are composed by clustered long cells resembling leaves. Under TEM observations, each cell is surrounded by a thin basal lamina and contains large stellate nucleus. The cytoplasm presents large and empty canaliculi with small microvilli. The basal plasma membrane forms numerous infoldings where numerous and well-developed mitochondria are concentrated. The cytoplasmic membrane system is poorly developed. Our ultrastructural results suggest that the Lyonet's gland in D. saccharalis larvae may be involved in the uptake of small molecules from the hemolymph no morphological evidences of macromolecules synthesis and secretion were noticed. The detection of nerve fibers in the gland suggest a neural control for the glandular cell function.Univ Estadual Paulista Julio Mesquita Filho, Inst Biociencias, Ctr Microscopia Eletron, BR-18618000 Botucatu, SP, BrazilUniv Estadual Paulista Julio Mesquita Filho, Inst Biociencias, Ctr Microscopia Eletron, BR-18618000 Botucatu, SP, BrazilInst Histol Embriol-conicetUniversidade Estadual Paulista (Unesp)Victoriano, E.Gregorio, E. A.2014-05-20T15:25:49Z2014-05-20T15:25:49Z2004-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article165-169application/pdfhttp://www.scielo.org.ar/scielo.php?pid=S0327-95452004000200006&script=sci_arttextBiocell. Mendoza: Inst Histol Embriol-conicet, v. 28, n. 2, p. 165-169, 2004.0327-9545http://hdl.handle.net/11449/36152S0327-95452004000200006WOS:000223771300006WOS000223771300006.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiocell0.1180,116info:eu-repo/semantics/openAccess2024-04-11T19:33:51Zoai:repositorio.unesp.br:11449/36152Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:17:30.694895Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
title |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
spellingShingle |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) Victoriano, E. accessory gland insect sugarcane borer morphology |
title_short |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
title_full |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
title_fullStr |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
title_full_unstemmed |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
title_sort |
Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae) |
author |
Victoriano, E. |
author_facet |
Victoriano, E. Gregorio, E. A. |
author_role |
author |
author2 |
Gregorio, E. A. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Victoriano, E. Gregorio, E. A. |
dc.subject.por.fl_str_mv |
accessory gland insect sugarcane borer morphology |
topic |
accessory gland insect sugarcane borer morphology |
description |
The Lyonet's gland is found in Lepidoptera larvae, close to the excretory duct of the silk gland. The role played by this gland is still uncertain. This work aims to describe the ultrastructure of the Lyonet's bland in Diatraea saccharalis larvae, offering suggestions regarding its possible function. The insects were reared under laboratory-controlled conditions. The glands were conventionally prepared for transmission (TEM) and scanning (SEM) electron microscopy. SEM showed that Lyonet's glands are paired small structures located in the ventral side of the head. They are composed by clustered long cells resembling leaves. Under TEM observations, each cell is surrounded by a thin basal lamina and contains large stellate nucleus. The cytoplasm presents large and empty canaliculi with small microvilli. The basal plasma membrane forms numerous infoldings where numerous and well-developed mitochondria are concentrated. The cytoplasmic membrane system is poorly developed. Our ultrastructural results suggest that the Lyonet's gland in D. saccharalis larvae may be involved in the uptake of small molecules from the hemolymph no morphological evidences of macromolecules synthesis and secretion were noticed. The detection of nerve fibers in the gland suggest a neural control for the glandular cell function. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 2014-05-20T15:25:49Z 2014-05-20T15:25:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.org.ar/scielo.php?pid=S0327-95452004000200006&script=sci_arttext Biocell. Mendoza: Inst Histol Embriol-conicet, v. 28, n. 2, p. 165-169, 2004. 0327-9545 http://hdl.handle.net/11449/36152 S0327-95452004000200006 WOS:000223771300006 WOS000223771300006.pdf |
url |
http://www.scielo.org.ar/scielo.php?pid=S0327-95452004000200006&script=sci_arttext http://hdl.handle.net/11449/36152 |
identifier_str_mv |
Biocell. Mendoza: Inst Histol Embriol-conicet, v. 28, n. 2, p. 165-169, 2004. 0327-9545 S0327-95452004000200006 WOS:000223771300006 WOS000223771300006.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biocell 0.118 0,116 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
165-169 application/pdf |
dc.publisher.none.fl_str_mv |
Inst Histol Embriol-conicet |
publisher.none.fl_str_mv |
Inst Histol Embriol-conicet |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129184463060992 |