Quantification of hydrolytic and proteolytic enzymes in the excreta of three epigeic earthworms and detection of thiocarbamic acid by GC-MS-MS |
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| Authors: | P Pramanik |
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| Institution: | (1) Agricultural and Ecological Research Unit, Biological Science Division, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700 108, India;(2) MGM VISION Laboratories Pvt. Ltd., C-122 (HIG), Orissa Housing Board Colony, Baramunda, Bhubaneswar, Orissa, 751 003, India;(3) Present address: Microbial Ecology Department, Gyeongsang National University, 900, Gajwa-Dong, Jinju, 660-701, South Korea |
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| Abstract: | Epigeic earthworms excrete various metabolites under stress conditions and a water-extract of this fluid (vermiwash), obtained
from three different earthworms (E. fetida, E. euginae and P. excavatus) were examined in this experiment. The highest activities of cellulase and amylase enzymes in the vermiwash were observed
in E. fetida, while P. excavatus and E. euginae recorded the highest activities of acid and alkaline phosphatases, respectively. Higher protease activity of P. excavatus and E. euginae was due to the higher concentration of group I, group II and group III isozymes, though E. fetida had a higher concentration of group IV isozyme. Thiocarbamic acid was detected in the vermiwash by GC-MS-MS analysis and
is probably responsible for its pesticidal properties. |
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