About Us | Help Videos | Contact Us | Subscriptions



This article in JEQ

  1. Vol. 7 No. 3, p. 346-348
    Received: July 18, 1977

Request Permissions


Biological Hydrolysis of Parathion in Natural Ecosystems1

  1.  Sudhakar-Barik and
  2. N. Sethunathan2



Parathion (O, O-diethyl O,p-nitrophenyl phosphorothioate) was applied to flooded soils and to water and sediment river, lake, and pond samples at 15-day intervals. While p-nitrophenol (O, O-dimethyl O,p-nitrophenyl phosphorothioate), the hydrolysis product of parathion, was not detected, even at the end of 12 days after the first addition, it was detected in all samples within 6 hours after two or three additions of the insecticide. Enrichment cultures from the samples of different ecosystems lost their ability to hydrolyze parathion following auto-claving, suggesting microbial participation in parathion hydrolysis.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .