Ultrastructural features of the fat body and oenocytes of Rhinocricus padbergi Verhoeff (Diplopoda, Spirobolida)

The fat body of the diplopod Rhinocricus padbergi is located in two preferential areas of its body: a) immediately below the tegument, denominated parietal, and b) filling the body cavity, close to the viscera, mainly the ovaries and alimentary canal, denominated perivisceral.Ultrastructurally, its...

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Detalhes bibliográficos
Autores: Mathias, Maria Izabel Camargo [UNESP], Fontanetti, C. S.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2000
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositório:Repositório Institucional da UNESP
Idioma:inglês
OAI Identifier:oai:repositorio.unesp.br:11449/19571
Acesso em linha:http://www.ncbi.nlm.nih.gov/pubmed/10893795
http://hdl.handle.net/11449/19571
Access Level:Acceso aberto
Palavra-chave:Diplopoda
fat body
oenocytes
ultrastructure
apoptosis
Rhinocrius padbergi
Descrição
Resumo:The fat body of the diplopod Rhinocricus padbergi is located in two preferential areas of its body: a) immediately below the tegument, denominated parietal, and b) filling the body cavity, close to the viscera, mainly the ovaries and alimentary canal, denominated perivisceral.Ultrastructurally, its cells, the adipocytes, presented varied morphology and contained organelles indicating that they are cells that mainly produce and store lipids and proteins. The presence of cells similar to the oenocytes found in insects was observed for the first time in diplopods, associated to the fat body of R. padbergi. Our observations suggest that this tissue probably maintains activity cycles, since the presence of cells undergoing apoptosis was detected.