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A case study for assessment of microbial community dynamics in genetically modified Bt cotton crop fields.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title A case study for assessment of microbial community dynamics in genetically modified Bt cotton crop fields.
 
Creator Kapur, Manisha
Bhatia, Ranjana
Pandey, Gunjan
Pandey, Janmejay
Paul, Debarati
Jain, R K
 
Subject QR Microbiology
 
Description Bt cotton was the first genetically modified crop approved for use in India. However, only a few studies have been conducted to assess the feasibility of its commercial application. Bt cotton is genetically modified to express a proteinaceous endotoxin (Cry) encoded by cry gene of Bacillus thuringiensis that has specific insecticidal activity against bollworms. Therefore, the amount of pesticides used for growing Bt cotton is postulated to be considerably low as compared to their non-Bt counterparts. Alternatively, it is also speculated that application of a genetically modified crop may alter the bio-geochemical balance of the agriculture field(s). Microbial community composition and dynamics is an important descriptor for assessment of such alterations. In the present study, we have assessed the culturable and non-culturable microbial diversities in Bt cotton and non-Bt cotton soils to determine the ecological consequences of application of Bt cotton. The analyses of microbial community structures indicated that cropping of Bt cotton did not adversely affect the diversity of the microbial communities.
 
Publisher Springer Science
 
Date 2010-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/536/1/jain10.pdf
Kapur, Manisha and Bhatia, Ranjana and Pandey, Gunjan and Pandey, Janmejay and Paul, Debarati and Jain, R K (2010) A case study for assessment of microbial community dynamics in genetically modified Bt cotton crop fields. Current microbiology, 61 (2). pp. 118-24. ISSN 1432-0991
 
Relation http://www.springerlink.com/content/p323213h757u62m3/fulltext.pdf
http://crdd.osdd.net/open/536/