Cytopathological and ultrastructural changes in the male reproductive organs of freshwater crab Paratelphusa jacquemontii (Rathbun) exposed to nurocombi |
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| Authors: | Shanmuganathan Archunan Maharajan Athisuyambulingam Kumara Perumal Pradhoshini Narayanaswamy Yelappu Ganapiriya viswambaran Muthukumaravel Kannayiram Marckasagayam Priyadharshini Mohamed Saiyad Musthafa Caterina Faggio |
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| Affiliation: | 1. PG & Research Department of Zoology, Khadir Mohideen College, Bharathidasan University, Thanjavur, India;2. Unit of Research in Radiation Biology & Environmental Radioactivity (URRBER), PG & Research Department of Zoology, The New College, University of Madras, Chennai, India;3. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina-Viale Ferdinando Stagno d'Alcontres, Messina, Italy |
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| Abstract: | Accumulation of pollutants in the aquatic system has a high impact on the reproductive physiology of crustaceans. The objective of the present study was to assess the possible histopathological effects of combined chlorpyrifos and cypermethrin (nurocombi) exposure on reproductive tissue in male freshwater crab Paratelphusa jacquemontii using light and electron microscopy. The testis of experimental crabs showed disorganization of testicular lobules, increased inters cellular space, necrosis, and cellular damage in both germinal cells and Sertoli cells. The treated vas deferens exhibited epithelial degeneration, misshaped spermatophores, decline in the number of spermatophores, and dehiscence of spermatophore wall. These clinical manifestations expressed in crabs following the exposure of nurocombi significantly reduce the testicular activity and substantially inhibits the seminal secretions, which ultimately lead to impairment of reproduction. |
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| Keywords: | nurocombi Paratelphusa jacquemontii testis vas deferens |
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