Effects of chemical and biological pesticides on plant growth parameters and rhizospheric bacterial community structure in Vigna radiata

Journal of Hazardous Materials
Sunil SinghShilpi Sharma

Abstract

With increasing application of pesticides in agriculture, their non-target effects on soil microbial communities are critical to soil health maintenance. The present study aimed to evaluate the effects of chemical pesticides (chlorpyrifos and cypermethrin) and a biological pesticide (azadirachtin) on growth parameters and the rhizospheric bacterial community of Vigna radiata. Qualitative and quantitative analysis by PCR-denaturing gradient gel electrophoresis (DGGE) and q-PCR, respectively, of the 16S rRNA gene and transcript were performed to study the impact of these pesticides on the resident and active rhizospheric bacterial community. While plant parameters were not affected significantly by the pesticides, a shift in the bacterial community structure was observed with an adverse effect on the abundance of 16S rRNA gene and transcripts. Chlorpyrifos showed almost complete degradation toward the end of the experiment. These non-target impacts on soil ecosystems and the fact that the effects of the biopesticide mimic those of chemical pesticides raise serious concerns regarding their application in agriculture.

References

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Citations

Mar 25, 2015·Environmental Science and Pollution Research International·Sunil SinghShilpi Sharma
May 8, 2016·Environmental Science and Pollution Research International·Qinghai WangXiaoe Que
Jun 3, 2016·Frontiers in Microbiology·Sana RomdhaneFabrice Martin-Laurent
Sep 30, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Bei WangYuanqing Zhou
Mar 21, 2017·Environmental Science and Pollution Research International·Cuiping ZhangYuanqing Zhou
Jun 7, 2017·Environmental Science and Pollution Research International·Varsha Ashok WalvekarShilpi Sharma
Jan 10, 2018·Environmental Science and Pollution Research International·Yoann Besset-ManzoniClaire Prigent-Combaret

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