National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Morphological and histo-pathological effects of a common broad spectrum systemic organophosphate insecticide, Phorate (O, O-Diethyl S-(ethylthio) methyl phasphoroditl) were evaluated on the integument of an epigeic earthworm, Eisenia fetida. The acute toxicity experiments were conducted by direct contact test (48 h) through a filter paper method recommended by OECD Guideline, 207. The LC50 value for 48 h was recorded and it was 20-40µl. Morphological alterations on the worm’s skin and histological observations showed coiling, curling and rupturing of body wall and formation of internal glandular cell mass and disintegration of circular and longitudinal muscles, which failed to regulate the internal coelomic pressure leading to fragmentation of body. The findings of morphological and histo-pathological studies could be applied in the environmental risk assessment of phorate.
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