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Comparative toxicity and biochemical responses of certain pesticides to the mature earthworm Aporrectodea caliginosa under laboratory conditions
Author(s) -
Mosleh Yahia Y.,
Ismail Saad M. M.,
Ahmed Mohamed T.,
Ahmed Yousery M.
Publication year - 2003
Publication title -
environmental toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 77
eISSN - 1522-7278
pISSN - 1520-4081
DOI - 10.1002/tox.10134
Subject(s) - pesticide , alkaline phosphatase , atrazine , toxicity , toxicology , transaminase , chemistry , metalaxyl , acid phosphatase , aldicarb , phosphatase , biology , biochemistry , enzyme , agronomy , organic chemistry
This study was conducted to investigate the toxicity of aldicarb, cypermethrin, profenofos, chlorfluazuron, atrazine, and metalaxyl toward mature Aporrectodea caliginosa earthworms. The effects of the LC 25 values of these pesticides on the growth rate in relation to glucose, soluble protein, and activities of glutamic‐oxaloacetic transaminase (GOT), glutamic‐pyruvic transaminase (GPT), acid phosphatase (AcP), and alkaline phosphatase (AIP) were also studied. The results showed that aldicarb was the most toxic of the tested pesticides, followed in order by cypermethrin, profenofos, chlorfluazuron, atrazine, and metalaxyl. A reduction in growth rate was observed in all pesticide‐treated worms, which was accompanied by a decrease in soluble protein and an increase in transaminases and phosphatases. Relationships between growth rate, protein content, transaminases, and phosphatases provided strong evidence for the involvement of pesticidal contamination in the biochemical changes in earthworms, which can be used as a bioindicator of soil contamination by pesticides. © 2003 Wiley Periodicals, Inc. Environ Toxicol 18: 338–346, 2003.