Consulta: subjectFacets:"Exocrine glands"
Registros recuperados: 7
Data/hora: 02/06/2024 06:41:47

Ultra-estrutura de glândulas abdominais tegumentares em Oxaea flavescens (Hymenoptera, Andrenidae, Oxaeinae)
Provedor de dados: 76
Autores: Guerino,Adriane Cristina; Cruz-Landim,Carminda da.
The sternal glands of the abdomen of Oxaea flavescens (Klug, 1807) consist of class III glandular cells around a reservoir constituted by branched folds of the intersegmental membrane of segments III, IV and V. The gland cells are rich in rough endoplasmic reticulum and produce a secretion with mucous aspect. The treatment with oxidated osmium and ruthenium red showed numerous Golgi regions in the cell and carbohydrates absorption from the haemolymph, respectively. The high degree of development of the glands suggests an important function to the species, although still unknown.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tegumentary glands; Exocrine glands; Sternal glands; Oxaea.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000400006

Morphological re-evaluation of the parotoid glands of Bufo ictericus (Amphibia, Anura, Bufonidae)
Provedor de dados: 16
Autores: Almeida, P.G. de; Felsemburgh, F.A.; Azevedo, R.A.; Brito-Gitirana, L. de.
Multicellular glands in the amphibian integument represent a signifi  cant evolutionary advance over those of fi shes. Bufonids have parotoid glands, symmetrically disposed in a post-orbital position.  Their secretion may contribute to protection against predators  and parasites. This study provides a re-evaluation of the morphology  of the Bufo ictericus parotoid glands. The parotoid gland  integument of the medial surface shows rounded depressions  with small pores that connect with the duct openings of the larger  granular glands. Under light microscopic evaluation the integument  is constituted by typical epidermis, supported by dermis  subdivided into a spongious dermis, a reticular dermis, and a  compact dermis. The Eberth-Katschenko layer is...
Tipo: Article / Letter to the editor
Palavras-chave: Morphology; Amphibian integument; Exocrine glands; Bufonid; 42.82; 42.62.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/256117

POST-EMBRYONIC DEVELOPMENT OF INTRAMANDIBULAR GLANDS OF FRIESELLA SCHROTTKYI (FRIESE, 1900) (HYMENOPTERA: APIDAE) WORKERS
Provedor de dados: 84
Autores: OLIVEIRA,ANDRÉ HENRIQUE DE; LISBOA,LUCIANE CRISTINA DE OLIVEIRA; SERRÃO,JOSÉ EDUARDO; ZANUNCIO,JOSÉ COLA; SOUZA,EDMILSON AMARAL DE.
ABSTRACT Exocrine glands play important role in social organization of insects, such as caste and inter-caste differentiation. Due their functional and structural plasticity, morphological studies on such glands contribute to better understanding the biology of social bees. Therefore, the aim of the study was to characterize the sequence of the post-embryonic development of intramandibular glands of Friesella schrottkyi (Friese, 1900) (Hymenoptera: Apidae) workers using histological and histochemical analyses. The mandibles of pupae at different developmental stages and newly emerged adults were analyzed. The intramandibular glands of F. schrottkyi presented two types: class I glands, in the mandible epidermis and class III glands, inside the mandible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exocrine glands; Morphology; Development; Stingless bees.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017002500321

Morphological, chemical and developmental aspects of the Dufour gland in some eusocial bees (Hymenoptera, Apidae): a review
Provedor de dados: 92
Autores: Abdalla,Fábio Camargo.
Morphological, chemical and developmental aspects of the Dufour gland in some eusocial bees (Hymenoptera, Apidae): a review. The present revision focused on the more recent data about the Dufour gland in some eusocial bees, taking in account general aspects of its morphology, secretion chemical nature, bio-synthetic pathway and development. Many functions have been attributed to this gland in eusocial bees, but none are convincing. With the new data about this gland, not only the secretion chemical pathway of the Dufour gland may be reasonable understood, as its function in some eusocial bees, especially Apis mellifera Linné, 1758, which has been extensively studied in the last years.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exocrine glands; Meliponines; Pheromone.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262006000200002

The frontal weapon of the termite Armitermes euamignathus Silvestri (Isoptera, Termitidae, Nasutitermitinae)
Provedor de dados: 104
Autores: Costa-Leonardo,Ana Maria.
Frontal weapon is the term used to designate the apparatus consisting of frontal gland and associated structures that participate in the chemical defense of termite soldiers. The ultra structure of the frontal gland and the scanning microscopy of the soldier head was investigated in the termite Amiitermes euamignathus Silvestri, 1901.Campaniform sensilla was not observed but there were 80 to100 sensory bristles around the frontal pore. The glandular epithelium shows only class 1 cells according 10 the classification of NOIROT &amp;amp; QUENNEDEY (1974, 1991). The glandular cells are characterized by apical microvilli, a basal labyrinth and a large quantity of smooth endoplasmic reticulum which forms dense zones throughout the cytoplasm. The secretion is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isoptera; Armitermes euamignathus; Frontal weapon; Frontal gland; Exocrine glands.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200012

The exocrine glands of swarming females and physogastric queens of Cornitermes cumulans (Kollar) (Isoptera, Termitidae, Nasutitermitinae)
Provedor de dados: 104
Autores: Ignatti,Ana Cristina; Costa-Leonardo,Ana Maria.
The histological study of the exocrine glands in the swarming females showed the presence of tergal glands, mandibular glands, salivary glands and sternal glands. Tergal and sternal glands are not developed in the physogastric queens, probably, because of a regression process. The development of mandibular glands is similar in swarming females and physogastric queens.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isoptera; Glandular system; Exocrine glands; Histology; Physogastric queens; Termite.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400007

Size differences in the Dufour gland of Apis mellifera Linnaeus (Hymenoptera, Apidae) between and within the female castes
Provedor de dados: 104
Autores: Abdalla,Fábio Camargo; Cruz-Landim,Carminda da.
The Dufour gland is found closely associated with the sting apparatus of all hymenopteran females, playing multiple roles among bees. In Apis mellifera Linnaeus, 1758 the gland is connected to the dorsal vaginal wall and, in queens, it produces egg-marking pheromones. In workers the function of this gland is unknown, except by its capacity to mimic the queen secretion in egg-laying workers. In an attempt to understand the development and to substantiate the present knowledge about the Dufour gland in A. mellifera, a morphometric study of the gland between and within the female castes was made. Glands of workers and queens with different ages and life stages were dissected and measured with an ocular micrometer adapted to a stereoscope. The results showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Dufour gland; Exocrine glands.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500009