Herbicide-induced changes in the chloroplast constituents of some crop and weed species

Santakumari, M. ; Das, V. S. R. (1983) Herbicide-induced changes in the chloroplast constituents of some crop and weed species Pesticide Biochemistry and Physiology, 20 (1). pp. 1-9. ISSN 0048-3575

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0048-3575(83)90115-3

Abstract

Changes induced by two herbicides diuron and atrazine in the chloroplast constituents of two susceptible crops (pisum sativum L. and pennisetum typhoides Stapf and Hubb) and two resistant weeds (Amaranthus viridiss L. and Cyperus rotundus L.) were studied. Considerable change in the levels of chloroplast constituents including chlorophyll, magnesium, and iron were observed in plants susceptible and resistant to herbicide treatment. The chloroplast nitrogen levels did not change much in resistant and susceptible plants either with diuron or atrazine. The chloroplast protein level showed an increase in resistant plants and a decrease in susceptible plants. The decreased protein level in chloroplasts was correlated with the decreased levels of total RNA of chloroplasts, whereas the chloroplast DNA was not correlated with the RNA levels of chloroplasts. From the present study, it appears that the chloroplast DNA may not have a direct role in determining the susceptibility or resistance of a plant to a given herbicide.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:82787
Deposited On:14 Feb 2012 14:03
Last Modified:14 Feb 2012 14:03

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