|
|
|
|
|
| Ferreira,Amilton; Abdalla,Fábio C.; Kerr,Warwick E.; Cruz-Landim,Carminda da. |
| The anatomy of the internal organs of the male reproductive apparatus (MRA) of adults and pupae was compared among 51 species of bees, including representatives of six families. Four different types of MRA were found. The type I is present in males of the less derived families (Colletidae, Andrenidae, and Halictidae) and is characterized by three seminiferous tubules per testis, which are almost completely enveloped by the scrotal membrane. The type II is an intermediary between types III and I and is present in Melittidae and Megachilidae, as well as in some Apidae studied, being characterized by post-vesicular deferent ducts outside the scrotal membrane and by three or four seminiferous tubules per testis, except for Apis mellifera L., which has a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Accessory gland; Genitalia; Morphology. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000500005 |
| |
|
|
| Araújo,Vinícius A; Freitas,Felipe V; Moreira,Jane; Neves,Clóvis A; Lino-Neto,José. |
| Bees can form all levels of social organization, from solitary to advanced eusocial societies. Although 80% of the species exist as solitary species, most researches emphasize social species. This study focuses on the description of the male reproductive system of the solitary beesThygater analis (Lepeletier) and Melitoma segmentaria (Fabricius) and searches for traits that support behavioral and phylogenetic studies. The reproductive system of males were dissected, fixed in 2.5% glutaraldehyde in 0.1 M sodium cacodylate buffer pH 7.2 and post-fixed with 1% osmium tetroxide. The tissue was dissected and included for light microscopy. The species presented similar anatomical traits, including paired testicles, seminal vesicles, deferent ducts, accessory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Accessory gland; Histology; Thygater analis; Melitoma segmentaria. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400020 |
| |
|
| |
|
|
| Victoriano,Eliane; Gregório,Elisa A.. |
| The Lyonet's gland is found in Lepidoptera larvae, close to the excretory duct of the silk gland. The role played by this gland is still uncertain. This work aims to describe the ultrastructure of the Lyonet's gland in Diatraea saccharalis larvae, offering suggestions regarding its possible function. The insects were reared under laboratory-controlled conditions. The glands were conventionally prepared for transmission (TEM) and scanning (SEM) electron microscopy. SEM showed that Lyonet's glands are paired small structures located in the ventral side of the head. They are composed by clustered long cells resembling leaves. Under TEM observations, each cell is surrounded by a thin basal lamina and contains large stellate nucleus. The cytoplasm presents... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Accessory gland; Insect; Sugarcane borer; Morphology. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000200006 |
| |
|
|
|
