Ultrastructure of the Lyonet's glands in larvae of Diatraea saccharalis Fabricius (Lepidoptera : Pyralidae)

Detalhes bibliográficos
Autor(a) principal: Victoriano, E.
Data de Publicação: 2004
Outros Autores: Gregorio, E. A.
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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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
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