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Quarterly Journal of Microscopical Science, Vol s3-105, 349-352, Copyright © 1964 by Company of Biologists

The Yolk-Nucleus in the Oocytes of Anabas Scandens (Teleostei)

N. H. GOPAL DUTT 1

1 Department of Zoology, Annamalai University, Annamalainagar, India

The yolk-nucleus appears as an organelle in contact with the nucleus in the early oocyte. It is spherical and appears in fixed preparations to be composed of 3 concentric zones. Histochemical tests indicate that it contains RNA, lipid, sulphydryl groups, carbohydrate, and certain amino-acids. It assumes a reticulate form before it finally merges with the peripheral cytoplasm. Circumstantial evidence suggests that the yolk-nucleus may be involved indirectly in vitellogenesis.






© The Company of Biologists Ltd 1964