Evaluating safety of genetically modified crops: effect of Bt-transgenic cabbage plants on microbial dynamics and dehydrogenase activity
157 / 64
Keywords:
Bt-transgenic cabbage, Dehydrogenase, Genetically modified, Microbial dynamics, SafetyAbstract
The fear that Bt transgenic cabbage may secrete some toxic or inhibitory substance that will adversely affect the populations of microorganisms dwelling in its rhizosphere did not appear to be true. Though only the culturable microbial population constituting less than 1% of the soil bacteria was examined, the study proved that Bt transgenic was not adversely affecting the representative culturable microorganisms dwelling around their rhizosphere in soil.
Downloads
References
Glare T R and Callaghan M. 2002. Bacillus thuringiensis. Biology, Ecology and Safety. John Wiley & Sons, Ltd. Chichester.
Gray A J. 2004. Ecology and government policies: the GM crop debate. Journal of Applied Ecology 41: 1–10.
Hails R S. 2000. Genetically modified plants - the debate continues. Trends in Ecology & Evolution 15: 14–8.
Kumar P A. 2003. Insect pest-resistant transgenic crops. (in): Advances in Microbial Control of Insect Pests, pp 71–82. Upadhyay R K (Ed.). Kluwer Academic, New York.
Menon P, Gopal M and Parsad R. 2005. Effect of Chlorpyrifos and Quinalphos on dehydrogenase activities and reduction of Fe3+ in the soils of two semi-arid fields of tropical India. Agriculture, Ecosystems and Environment 108(1): 73–83.
Paul K A, Sharma S R, Sresty T V S, Bisaria S, Kumar P S, Saradhi P S, Frutos R, Altosaar I and Kumar P A. 2005. Transgenic cabbage (Brassica oleracea var. Capitata) resistant to Diamondback moth. Indian Journal of Biotechnology 4: 62–7.
Prescott L M, Harley J P and Klein D A 1990. Microbiology, pp 489–97. Wm C Brown Publishers, Kerper Boulevard, Dubuque, IA.
Saxena D, Flores S and Stotzky G .2002. Bt toxin is released in root exudates from 12 transgenic corn hybrids representing three transformation events. Soil Biology & Biochemistry 34: 133–7.
Snow A A, Andow D A, Gepts P, Hallerman E M, Power A, Tiedje J M and Wolfenbarger L L. 2005. Genetically engineered organisms and the environment: Current status and recommendations. Ecology Appliances 15: 377–404.
Wu W X, Ye Q F, Min H, Duan X J and Jin W M. 2004. Bt- transgenic rice straw affects the culturable microbiota and dehydrogenase and phosphatase activities in a flooded paddy soil. Soil Biology & Biochemistry 36: 289–95.
Downloads
Submitted
Published
Issue
Section
License
Copyright (c) 2014 The Indian Journal of Agricultural Sciences

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.