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Estudo comparativo da área ocupada pelos corpos pedunculados no cérebro de duas espécies de abelhas (Hymenoptera, Apoidea) Zoologia
Abdalla,Fábio Camargo; Cruz-Landim,Carminda da.
The present study compare the size of the corpora pedunculata (mushroom bodies) of Exomalopsis aureopilosa a quasi-social specie and Apis mellifera a eusocial specie of bees. The aim was to correlate the developmental degree of such structures with the behavior complexity. The results show that the female specimens of both species have the corpora pedunculata with same relative size. However the area occupied by the neurones cellular bodies (glomeruli) is greater in the workers of A. mellifera. In other way in E. aureopilosa the total size of the corpora pedunculata is larger in females, but the glomeruli area is relatively larger in the male.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hymenoptera; Apoidea; Corpora pedunculata; Glomeruli; Castes; Behavior.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400016
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Morphological, chemical and developmental aspects of the Dufour gland in some eusocial bees (Hymenoptera, Apidae): a review Rev. Bras. entomol.
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
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Occurrence, morphology and ultrastructure of the Dufour gland in Melipona bicolor Lepeletier (Hymenoptera, Meliponini) Rev. Bras. entomol.
Abdalla,Fábio Camargo; Cruz-Landim,Carminda da.
The occurrence, morphology and ultrastructure of the Dufour gland in Melipona bicolor Lepeletier, 1836 are presented. The Dufour gland is not present in workers. In virgin queens the gland cells show characteristics of low activity, which are described in the text. In physogastric queens the gland epithelium is higher and the cells more active than in virgin queens, showing numerous basal plasmic membrane invaginations impregnated by an electrondense material, increased apical invaginations and accumulation of substances that will be released to the gland lumen in the subcuticular space. Therefore, the data show that the Dufour gland is more developed in physogastric than in virgin queens, indicating a possible involvement of the Dufour gland in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dufour gland; Melipona bicolor; Meliponine; Morphology; Ultrastructure.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262004000100002
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Size differences in the Dufour gland of Apis mellifera Linnaeus (Hymenoptera, Apidae) between and within the female castes Zoologia
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
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