Inducible protective processes in animal systems. III. adaptive response of meiotic cells of the grasshopper, Poecilocerus pictus, to a low dose of ethyl methanesulfonate

Mahmood, R. and Vasudev, V. (1992) Inducible protective processes in animal systems. III. adaptive response of meiotic cells of the grasshopper, Poecilocerus pictus, to a low dose of ethyl methanesulfonate. Mutation Research, 283 (4). pp. 243-247.

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Official URL: https://doi.org/10.1016/0165-7992(92)90055-M

Abstract

Meiotic cells of Poecilocerus pictus exposed to a low dose of 0.03 M of ethyl methanesulfonate (EMS) were found to be resistant to the induction of chromosomal anomalies by a subsequent challenge dose (0.12 M) of the same mutagen as compared to cells that were not pre-exposed. They responded with a significantly reduced incidence of chromosomal anomalies in metaphase I and II and anaphase I and II. These results indicate the presence of an inducible chromosomal repair mechanism in melotic cells of P. pictus. The incidence of chromosome damage was found to be less when the time lag between the conditioning and challenging doses was reduced, suggesting that under the conditions tested, the efficacy of repair enzymes gradually decreases as the time between the two doses increases.

Item Type: Article
Subjects: B Life Science > Zoology
Divisions: Department of > Zoology
Depositing User: Users 23 not found.
Date Deposited: 18 May 2021 06:58
Last Modified: 18 May 2021 06:58
URI: http://eprints.uni-mysore.ac.in/id/eprint/16406

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