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Smita, M.
- Orchestra for the Dress Code of Sperm and its Transport in Caecilians
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Authors
Affiliations
1 Department of Zoology, University of Kerala, Kariavattom, 695 581, Thiruvananthapuram, IN
2 Department of Animal Science, Bharathidasan University, Thinjchirappalli- 620 024, IN
1 Department of Zoology, University of Kerala, Kariavattom, 695 581, Thiruvananthapuram, IN
2 Department of Animal Science, Bharathidasan University, Thinjchirappalli- 620 024, IN
Source
Journal of Endocrinology and Reproduction, Vol 9, No 1&2 (2005), Pagination: 19-26Abstract
Caecilians, of the order Gymnophiona in the Lissamphibia, are circumtropically distributed across most moist tropical regions of the world. Gymnophiona are among the least understood terrestrial vertebrates and have received lesser attention than the other two orders of lissamphibians, the Urodela and Anura. Spermiogenesis, known as spermateleosis in lower vertebrates, is the transformation of the round spermatid into a highly specialized spermatozoon with a species-specific structure. Spermateleosis and sperm morphology of two species of caecilians, Ichthyophis tricolor and Uraeotyphlus cf. narayani, from the Western Ghats of Kerala, India, were studied using light and scanning electron microscopy. The cyst morphology is described in ten steps. We also report the sperm transporting course in this enigmatic amphibian in addition to localizing sperm in the kidney. This confirms the transport of sperm through the kidney.Keywords
Amelwid Cells, Caecilians, Connective Tissue Strand, Cyst, Sertoli Cells, Spermatids, Spermatozoa, Sperm Transport.- The Spermatogenic Cycle of a Caecilian Ichthyophis tricolor of the Western Ghats of Kerala (Amphibia:Gymnophiona)
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Authors
Affiliations
1 Department of Zoology, University of Kerala, Kariavottom 695 581, Trivandrum, Kerala, IN
2 Department of Animal Sciences, Bharathidasan University, Thiruchirappalli 620 024, Tamil Nadu, IN
1 Department of Zoology, University of Kerala, Kariavottom 695 581, Trivandrum, Kerala, IN
2 Department of Animal Sciences, Bharathidasan University, Thiruchirappalli 620 024, Tamil Nadu, IN
Source
Journal of Endocrinology and Reproduction, Vol 7, No 1&2 (2003), Pagination: 36-37Abstract
The Gymnophiona are the least wellknown amphibian order, an unfortunate situation because these animals can clarify many aspects of amphibian natural history, vertebrate evolution and the physiology of viviparity and fossorial life.- A Role for the Mullerian Gland of an Adult Male Caecilian in the Aspects of Internal Fertilization:A Study Adopting Immunological Tools
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Authors
Affiliations
1 Department of Animal Science, Bharathidasan Univeristy, Tiruchirappalti 620 024, IN
2 Department of Zoology, University of Kerala, Kariavattom 695 581, IN
3 Department of Zoology, Jamal Mohamed College, Tiruchirappalli 620 020, IN
1 Department of Animal Science, Bharathidasan Univeristy, Tiruchirappalti 620 024, IN
2 Department of Zoology, University of Kerala, Kariavattom 695 581, IN
3 Department of Zoology, Jamal Mohamed College, Tiruchirappalli 620 020, IN