title: Ultrastructural changes in testis of gobiid fish Glossogobius giuris (Ham) induced by fenthion.
abstract: Pesticides are known to affect the testis in fishes and cause cytomorphological changes or gross physiological alterations due to changes in its histology, retard gonadotrophic secretions thereby causing regression of the gonads. Light and ultrastructural studies were made on control and fenthion treated testis, interstitial gland and sperms of G. giuris during spawning phase after exposing them to different sub-lethal concentrations (0.05, 0.25 and 0.5 ppm) fenthion for a short-term period (24, 48, 72 and 96 hr). The results indicated extensive cytotoxic damages in the testis including atrophy of testis, reduction in lipoidal material in the interstitial cell and degeneration of sperms. The alteration in histology of testis, interstitial cell and sperms progressively increased with the increase in the sub-lethal concentration of pesticides.
authors.affiliation: Department of Zoology, Jnana Bharathi, Bangalore University, Bangalore 560 056, India.
authors.forename: B
authors.initials: B
authors.lastname: Zutshi
authors.forename: P S
authors.initials: PS
authors.lastname: Murthy
mesh_terms: D000818:Animals; D005284:Fenthion / Q000494:pharmacology*; D007306:Insecticides / Q000494:pharmacology*; D008297:Male; D008854:Microscopy, Electron; D010473:Perciformes; D013094:Spermatozoa / Q000187:drug effects / Q000648:ultrastructure; D013737:Testis / Q000187:drug effects* / Q000648:ultrastructure
chemical_list: D007306:Insecticides; D005284:Fenthion