Phenotypic changes prior to proliferation in primordial germ cells of the common carp

The work presents microstructural analysis of the oocytes of the common carp and the caspian roach that are on the stages of the protoplasmic and trophoplasmic (large) growth of the germ cells. Seasonal changes of quantitative and qualitative transformations of structural components of oocytes are also given. It is shown that from the early spring to the late autumn in the ovaries of the caspian roach and the common carp found are the oocytes of different generations, which are both at the generative and vegetative stages of growth of germ cells and along with this can occur, with varying intensity, resorption of whole oocytes and their individual structures. It has been established that spawning is common in the common carp, generative and regenerative processes occur simultaneously, while in the wobble spawning is simultaneous, the generative processes begin only after the regeneration of the sexual gland.

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Visualization and motility of primordial germ cells using green fluorescent protein fused to 3'UTR of common carp nanos-related gene

Aquaculture ◽

10.1016/j.aquaculture.2011.04.019 ◽

2011 ◽

Vol 317 (1-4) ◽

pp. 245-250 ◽

Cited By ~ 12

Author(s):

Yutaka Kawakami ◽

Taiju Saito ◽

Takafumi Fujimoto ◽

Rie Goto-Kazeto ◽

Eisuke Takahashi ◽

...

Keyword(s):

Green Fluorescent Protein ◽

Common Carp ◽

Germ Cells ◽

Fluorescent Protein ◽

Primordial Germ Cells ◽

Related Gene ◽

Green Fluorescent

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Surface location and stage-specificity of differentiation antigens on germ cells in the common carp (Cyprinus carpio), as revealed with monoclonal antibodies and immunogold staining

Histochemistry ◽

10.1007/bf00737231 ◽

1990 ◽

Vol 95 (1) ◽

pp. 77-85 ◽

Cited By ~ 3

Author(s):

A. van Winkoop ◽

L. P. M. Timmermans

Keyword(s):

Monoclonal Antibodies ◽

Common Carp ◽

Germ Cells ◽

Cyprinus Carpio ◽

Immunogold Staining ◽

Common Carp Cyprinus Carpio ◽

Stage Specificity ◽

Carp Cyprinus Carpio ◽

Surface Location ◽

The Common

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Hexachlorobenzene toxicity in the rat ovary: II. Ultrastructure induced by medium (10 mg/kg) dose exposure

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010012374x ◽

1992 ◽

Vol 50 (1) ◽

pp. 668-669

Author(s):

Amreek Singh ◽

Warren G. Foster ◽

Anna Dykeman ◽

David C. Villeneuve

Keyword(s):

Germ Cells ◽

Primordial Germ Cells ◽

Surface Epithelium ◽

Morphological Parameters ◽

Comprehensive Investigation ◽

Ovary Surface Epithelium ◽

Rat Ovary ◽

High Doses

Hexachlorobenzene (HCB) is a known toxicant that is found in the environment as a by-product during manufacture of certain pesticides. This chlorinated chemical has been isolated from many tissues including ovary. When administered in high doses, HCB causes degeneration of primordial germ cells and ovary surface epithelium in sub-human primates. A purpose of this experiment was to determine a no-effect dose of the chemical on the rat ovary. The study is part of a comprehensive investigation on the effects of the compound on the biochemical, hematological, and morphological parameters in the monkey and rat.

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