Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://link.springer.com/article/10.1007%2Fs00435-014-0241-8 http://hdl.handle.net/11449/128676 |
Resumo: | Termites are social insects with well-defined castes: workers, soldiers and reproductives. The soldier is a terminal stage and originates from either larvae or workers after two molting processes that include an intermediate presoldier instar. The present study followed the occurrence and morphological changes of the fat body during the soldier ontogeny in the neotropical termite Heterotermes tenuis. Workers and soldiers collected in the field and presoldiers obtained in laboratory were fixed in FAA fixative and embedded in resin for light microscopy. The histological sections were submitted to histochemical tests for protein and urate detection. The fat body in all the individuals showed only two cellular types: adipocytes and urocytes. The adipocytes of presoldiers displayed some lipid droplets, and a large amount of acidophilic granules interpreted as proteins because they were strongly stained by xylidine Ponceau. In soldiers, the fat body was deprived from proteins and showed a higher quantity of urocytes with many urate spherocrystals compared with those present in workers and presoldiers. The results were consistent with metamorphosis process and with the possibility of presoldiers being at the beginning of molting stage. The occurrence of many protein granules suggests uptake and consumption of protein storage during the whole development of the presoldiers into soldiers. The dynamic transformations of the fat body enable the individuals of different phenotypes to accomplish their role in the termite colony. |
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Repositório Institucional da UNESP |
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Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae)AdipocytesUrocytesCaste differentiationSubterranean termiteTermites are social insects with well-defined castes: workers, soldiers and reproductives. The soldier is a terminal stage and originates from either larvae or workers after two molting processes that include an intermediate presoldier instar. The present study followed the occurrence and morphological changes of the fat body during the soldier ontogeny in the neotropical termite Heterotermes tenuis. Workers and soldiers collected in the field and presoldiers obtained in laboratory were fixed in FAA fixative and embedded in resin for light microscopy. The histological sections were submitted to histochemical tests for protein and urate detection. The fat body in all the individuals showed only two cellular types: adipocytes and urocytes. The adipocytes of presoldiers displayed some lipid droplets, and a large amount of acidophilic granules interpreted as proteins because they were strongly stained by xylidine Ponceau. In soldiers, the fat body was deprived from proteins and showed a higher quantity of urocytes with many urate spherocrystals compared with those present in workers and presoldiers. The results were consistent with metamorphosis process and with the possibility of presoldiers being at the beginning of molting stage. The occurrence of many protein granules suggests uptake and consumption of protein storage during the whole development of the presoldiers into soldiers. The dynamic transformations of the fat body enable the individuals of different phenotypes to accomplish their role in the termite colony.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista (UNESP) - Departamento de Biologia, Instituto de Biociências, Av. 24-A, 1515 – Bela Vista, Caixa Postal 199, Rio Claro, Sa˜o Paulo 13506-900, BrazilUniversidade Estadual Paulista (UNESP) - Departamento de Biologia, Instituto de Biociências, Av. 24-A, 1515 – Bela Vista, Caixa Postal 199, Rio Claro, Sa˜o Paulo 13506-900, BrazilSpringerUniversidade Estadual Paulista (Unesp)Laranjo, Lara Teixeira [UNESP]Costa-Leonardo, Ana Maria [UNESP]2015-10-21T13:12:11Z2015-10-21T13:12:11Z2015-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article55-61http://link.springer.com/article/10.1007%2Fs00435-014-0241-8Zoomorphology. New York: Springer, v. 134, n. 1, p. 55-61, 2015.0720-213Xhttp://hdl.handle.net/11449/12867610.1007/s00435-014-0241-8WOS:000349398400005Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZoomorphology1.400info:eu-repo/semantics/openAccess2021-10-23T21:56:51Zoai:repositorio.unesp.br:11449/128676Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:51:45.394700Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
title |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
spellingShingle |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) Laranjo, Lara Teixeira [UNESP] Adipocytes Urocytes Caste differentiation Subterranean termite |
title_short |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
title_full |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
title_fullStr |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
title_full_unstemmed |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
title_sort |
Disappearance of fat body proteins during soldier differentiation in the neotropical termite Heterotermes tenuis (Isoptera: Rhinotermitidae) |
author |
Laranjo, Lara Teixeira [UNESP] |
author_facet |
Laranjo, Lara Teixeira [UNESP] Costa-Leonardo, Ana Maria [UNESP] |
author_role |
author |
author2 |
Costa-Leonardo, Ana Maria [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Laranjo, Lara Teixeira [UNESP] Costa-Leonardo, Ana Maria [UNESP] |
dc.subject.por.fl_str_mv |
Adipocytes Urocytes Caste differentiation Subterranean termite |
topic |
Adipocytes Urocytes Caste differentiation Subterranean termite |
description |
Termites are social insects with well-defined castes: workers, soldiers and reproductives. The soldier is a terminal stage and originates from either larvae or workers after two molting processes that include an intermediate presoldier instar. The present study followed the occurrence and morphological changes of the fat body during the soldier ontogeny in the neotropical termite Heterotermes tenuis. Workers and soldiers collected in the field and presoldiers obtained in laboratory were fixed in FAA fixative and embedded in resin for light microscopy. The histological sections were submitted to histochemical tests for protein and urate detection. The fat body in all the individuals showed only two cellular types: adipocytes and urocytes. The adipocytes of presoldiers displayed some lipid droplets, and a large amount of acidophilic granules interpreted as proteins because they were strongly stained by xylidine Ponceau. In soldiers, the fat body was deprived from proteins and showed a higher quantity of urocytes with many urate spherocrystals compared with those present in workers and presoldiers. The results were consistent with metamorphosis process and with the possibility of presoldiers being at the beginning of molting stage. The occurrence of many protein granules suggests uptake and consumption of protein storage during the whole development of the presoldiers into soldiers. The dynamic transformations of the fat body enable the individuals of different phenotypes to accomplish their role in the termite colony. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-21T13:12:11Z 2015-10-21T13:12:11Z 2015-03-01 |
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://link.springer.com/article/10.1007%2Fs00435-014-0241-8 Zoomorphology. New York: Springer, v. 134, n. 1, p. 55-61, 2015. 0720-213X http://hdl.handle.net/11449/128676 10.1007/s00435-014-0241-8 WOS:000349398400005 |
url |
http://link.springer.com/article/10.1007%2Fs00435-014-0241-8 http://hdl.handle.net/11449/128676 |
identifier_str_mv |
Zoomorphology. New York: Springer, v. 134, n. 1, p. 55-61, 2015. 0720-213X 10.1007/s00435-014-0241-8 WOS:000349398400005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zoomorphology 1.400 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
55-61 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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_ |
1808128711258537984 |