Anatomia da apis mellifera. 7, views Learning to Write a Syllabus. Online Course – LinkedIn Learning · Insights from a College Career Coach. Apis mellifera Linnaeus (Hymenoptera, Apidae) between and . 1 d. Gliindulas anexas ao aparelho de ferrao das abelhas, anatomia e histologia ( Hyme-. 11 mar. Aspectos morfológicos e anatómicos da abelha. Apis mellifera. A atividade quimica na organização e defesa da colónia. Anatomia externa.
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Four different types of MRA were found. Services on Demand Journal. The bees of the world. The post-vesicular deferent ducts are joined and open directly at the ejaculatory duct, which is short and simple Fig.
The accessory gland loops can mellirera developed Fig. In Apis mellifera L.
All the specimens were adults, except for the species Scaptotrigona postica Latreille, Melipona quadrifasciata Lepeletier and Tetragonisca angustula Latreille. In the Apidae with MRA of the Type II, the seminal vesicles differ only slightly from the pre- and post-vesicular deferent ducts, and the post-vesicular ducts open at the final opens at the final portion of the accessory glands, next to the ejaculatory duct Figs.
Anatomy and physiology of the honey bee. On the cell provisioning and oviposition POP of the stingless bees nomenclature reappraisal and evolutionary considerations Hymenoptera, Apidae, Meliponine.
A Drosophila male accessory gland protein that is member of the Serpin superfamily of proteinase inhibitors is transferred to females during mating. This condition may be related and compensated by the continued spermatogenesis that extends into the adult life stage. Ultrastructure of the ducts of the reproductive tract of males of Melipona bicolor Lepeletier Hymenoptera, Apidae, Meliponini.
After this period, the number of protein bands in electrophoretic gels reduce, when at eight days old drones is present only three dominant polypeptides. This later portion usually presents anatomic variation among the species. Apparently the tendency of the male reproductive tract of bees was towards an increase in number and length of the seminiferous tubules, which must have resulted in an increased number of spermatozoa production.
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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 mellifeea deferent ducts outside the scrotal membrane and by three or four seminiferous tubules per testis, except for Apis mellifera L. Each contains one testis and one seminal vesicle Fig. Type IV is present exclusively in the tribe Meliponini, and is characterized by the absence of accessory glands.
There are few comparative studies concerning to the male reproductive apparatus in bees, especially on solitary and stingless species.
Yet it is only around the 12 th day of adult life that a drone is mature for mating Snodgrasswhen all the spermatozoa is contained in the seminal vesicles and ready to be ejected in the female during mating Bishop The second modification was an increase in the number of seminiferous tubules per testis, or their widening, as well as an elongation of the post-vesicular deferent ducts. The type I is anatomix 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.
Baltimore, The John Hopkins Univ.
The internal genital organs of males of 51 bee species, belonging to six families, were studied Table 1. The seminiferous tubules are separated from one another by interstitial tissue; and individually encapsulated by a peritoneal mellifrea. X-L’appareil reproducteur du male. Organization of the cysts in bees Hymenoptera, Apidae testis: Meliponines are also similar to solitary bees in the sense that anaatomia mass provision their brood cells before oviposition and then immediately seal the alveoli Zucchi et al.
Next, there is a displacement of the opening site of the post-vesicular duct, tending to be nearer the ejaculatory duct, as well as an increase in the length and diameter of the ejaculatory duct. Comparative anatomy of the male reproductive internal organs of 51 species of bees.
The tubules are enveloped, as a group, by a scrotal membrane or capsule, forming a globular structure Cruz-Landim The species that belong to the phylogenetical intermediate families, Melittidae and Megachilidae, and some species of Apidae, presented Type II, which showed intermediate or transitional anatomical characters.
Abdalla I ; Warwick E. The meliponines differ from the other bees by the loss of the accessory glands.
Aspectos morfológicos e anatómicos da abelha Apis mellifera. by Andreia Sampaio on Prezi
The similarity of the MRA of meliponines to that of the basal solitary bees is not the only similarity between these two groups of bees. In the Megachilidae there are three seminiferous tubules per testis Fig.
Thre reproductive behavior of Anthidium maculosum Hymenoptera: The male reproductive mfllifera of most aips possesses accessory glands, the mesadenial or ectadenial glands, which open at the deferent ducts or at the ejaculatory duct, respectively SnodgrassChapman The rarity of multiple mating by females in the social Hymenoptera.
Protein content and pattern during mucus gland maturation and its ecdysteroid control in honey bee drones. The testes are formed by a variable number of solid filaments, known as seminiferous tubules. Type I was found in almost all species studied of the families Colletidae except for Tricholletes venustus SmithAndrenidae, Halictidae, and Megachilidae except for Anthidium manicatum L.
Contrary to the solitary bees, however, the meliponine queen produces a much higher number of eggs and is long lived. After removing the genital organs in saline solution, these were schematized under a stereomicroscope with aid of a Zeiss Winkle camara lucida. The male reproductive apparatus MRA of insects is constituted by a pair of testes connected to aedeagus through the genital ducts.
Comparative anatomy of the male reproductive internal organs of 51 species of bees
Alternatively, the remainder of the ruptured male genitalia in the female tract may function as a plug. With the exception of Xylocapa Fig.
In all species, two portions compose the accessory gland: Pupae of males of Scaptotrigona postica Latreille, Melipona quadrifasciata Lepeletier, and Tetragonisca angustula Latreille were also analyzed. It is characterized by the absence of the accessory glands and by seminal vesicles that is much thicker than the deferent ducts Fig.
All the contents of this anatomix, except where otherwise noted, is licensed under a Creative Commons Attribution License. Their histological structures and physiological functioning.