Indian Journal of Agricultural Review article published in Volume 35 Issue 3 (September 2013):- STATUS OF INSECT RESISTANCE TO BACILLUS THURINGIENSIS, MECHANISM AND MANAGEMENT - A REVIEW S.I. Patel, G.M. Patel1, R.l. Patel2 and A.A. Patel Centre of Excellence for Research on Wheat, S. D. Agricultural University, Vijapur- 382 870, India Received: 02-05-2012 Accepted:06-12-2012 ABSTRACT Bacillus thuringiensis, commonly known as Bt, a most promising alternative to synthetic insecticides, has been used as an effective bio-pesticide in agriculture since long time. Two insecticidal protein, Cyt (Cytolysins) and Cry (Crystal ä-endotoxin) are the toxic substances responsible for the death of an insect. The durability of this novel insect control technology is questioned as many cases of insect population developing resistance to Bt cry proteins were observed and various mechanisms for resistance to Bt cry proteins were reported. Management of resistance in insect to Bt includes refugia, gene pyramiding and novel toxins. Key words : Bacillus thuringiensis, Cry protein, Novel toxin , Refugia, Resistance.
Posted on: Wed, 25 Sep 2013 06:53:34 +0000
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