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Spermatogenesis and spermatophore formation in the Indian white prawn Penaeus indicus H. Milne Edwards

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Relation http://eprints.cmfri.org.in/788/
 
Title Spermatogenesis and spermatophore formation in the Indian white prawn Penaeus indicus H. Milne Edwards
 
Creator Mohamed, K S
Diwan, A D
 
Subject Fish biology
Prawn and Prawn fisheries
 
Description The origin and formation of the spermatozoa and spermatophore in the penaeid prawn
Penaeus indicus has been described. Spermatogenesis takes place in the lumen of the testicular acini
which have a peripheral germinal zone. Spermatogenesis involves the progressive reduction of the
cytoplasm to produce a spherical sperm having an electron dense cap region containing the acrosomal
complex from which extends a single spike. Histochemical studies revealed that the spermatozoa
had a remarkable abundance of polysaccharides and basic proteins such as arginine and lysine, but
was poor in lipids. Spermatophore formation took place inside the vas-deferens with the aid of
secretory epithelial cells lining the ducts. The mid vas-deferens was responsible for the deposition
of the sperm matrix, spermatophore layer I and the wing, while the distal was deferens secreted the
outer bounding layer Qayer II). The terminal ampoule served to mould the spermatophore into
its characteristic oval shape and for its forceful ejaculation (luring copulation. The complete
spermatophore was electroeiaculated and its structural morphology and chemical composition of the
acelluar bounding layers was studied.
 
Publisher MBAI
 
Date 1993
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/788/1/Sunil_Diw_180-192.pdf
Mohamed, K S and Diwan, A D (1993) Spermatogenesis and spermatophore formation in the Indian white prawn Penaeus indicus H. Milne Edwards. Journal of the Marine Biological Association of India, 35 (1&2). pp. 180-192.