Ultrastructure and histochemistry of the mineral concretions in the midgut of bees (Hymenoptera: Apidae)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDa Cruz-Landim, Carminda-
Autor(es): dc.creatorSerrão, Iosé Eduardo-
Data de aceite: dc.date.accessioned2025-08-21T21:57:30Z-
Data de disponibilização: dc.date.available2025-08-21T21:57:30Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1997-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1163/156854297x00210-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223844-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223844-
Descrição: dc.descriptionMineral concretions in the digestive cells of bees were examined under transmission electron microscope and histochemically. Ultrastructure shows two types of mineral deposits: 1) mineral concretions which are organized in granules with a striking concentrically layered organization of opaque and clear zones and 2) electron dense granules which appear inside small vacuoles (0.4-0.7 μm). These two structures are present in the apex of the digestive cells of the posterior midgut. Histochemical data reveal that mineral concretions are composed of calcium, iron and uric acid or its salts while calcium determination gives a positive reaction for electron dense granules. Morphological and chemical similarities between the mineral concretions of bees and those described for other insects suggest that they have an important physiological role regulating the composition of the internal environment and to avoid intoxication. Since concretions and granules are structurally distinct, it is suggested that they are functionally different.-
Descrição: dc.descriptionDepartamento de Biologia Instituto de Biociências Universidade Estadual Paulista, Caixa Postal 199, 13506-900 Rio Claro, SP-
Descrição: dc.descriptionDepartamento de Biologia Instituto de Biociências Universidade Estadual Paulista, Caixa Postal 199, 13506-900 Rio Claro, SP-
Formato: dc.format21-29-
Idioma: dc.languageen-
Relação: dc.relationNetherlands Journal of Zoology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBee-
Palavras-chave: dc.subjectHistochemistry-
Palavras-chave: dc.subjectMidgut-
Palavras-chave: dc.subjectMineral concretions-
Palavras-chave: dc.subjectSpherites-
Título: dc.titleUltrastructure and histochemistry of the mineral concretions in the midgut of bees (Hymenoptera: Apidae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.