Crustacean Vitellogenesis: Its Role in Oocyte Development
نویسندگان
چکیده
منابع مشابه
Crustacean Vitellogenesis: Its Role in Oocyte Development1
SYNOPSIS. One of the major changes that occurs during the maturation of oocytes is the accumulation of yolk protein, or vitellin (Vn). To better understand how this process is regulated, we characterized the Vn of the ridgeback shrimp, Sicyonia ingentis (Penaeoidea). This Vn is a 322 kDa molecule composed of three subunits. Using purified Vn, we developed an anti-Vn antiserum and used it to cha...
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The ovary of the roach Periplaneta americana has been studied by techniques of light and electron microscopy. Each ovariole (panoistic type) contains a linear array of oocytes in varying stages of development. Newly formed oocytes become encased by a layer of follicle cells and begin pinocytosis. All subsequent growth stages of the oocytes are dependent, in part, on this phenomenon. All of the ...
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The ultrastructure of follicle cells has been compared to that of developing oocytes in the marine crustacean isopod, Idotea balthica basteri, at different periods of the molting cycle. There was a distinct change in the shape and size of the follicles and in their relation to each other and to the oocytes. During stage 1 of vitellogenesis (molting cycle period C), spaces between the follicles ...
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Ovarian folliculogenesis is regulated by both endocrine and intraovarian mechanisms that coordinate the processes of oocyte growth and somatic cell proliferation and differentiation. Within the follicle, paracrine interactions between the oocyte and surrounding granulosa cells are critical for normal cell development and function. This review focuses on the role of paracrine interactions during...
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ژورنال
عنوان ژورنال: American Zoologist
سال: 2001
ISSN: 0003-1569
DOI: 10.1093/icb/41.3.465