期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：10
页码：5403
出版社：S&S Publications
摘要：Cyanobacteria contribute significantly to the maintenance of flooded rice field fertility. In thisinvestigation, the protective effect of osmolytes and antioxidative enzymes was studied on the paddy fieldcyanobacterial biofertilizer; Anabaena variabilis exposed to Malathion pesticide. With increasing concentration ofmalathion the test organism showed increased free radical mediated toxicity. The activity of antioxidative enzymessuperoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) enhanced considerably. Interestingly,osmolytes ─ proline, sucrose, mannitol, trehalose and glycogen levels also increased under the malathion treatmentindicating their involvement of this osmoprotectants in a free radical scavenging mechanism. Taken together, ourresults indicate a probable role of osmolytes in co-operation with antioxidative enzymes in lowering pesticideinduced oxidative stress.
