• Janani Rajendran
• Nathiya Subramanian
• Rajesh Kannan Velu

Present study was focused the Bacillus thuringiensis isolates (RBL 10 and RBL 20) plant growth promoting activities, particularly for its antibacterial property against bacterial blight disease which was production of bacteriocin. Major plant growth promoting characteristics like IAA, siderophore production and phosphate solubilizations were analyzed and it was confirmed as it has the plant growth promoting capacity. Antibacterial activity was checked and bacteriocin was extracted and fractionated by column chromatography. Fractionated bacteriocin was analyzed and identified by FT-IR and GC-MS analysis. The fraction which having high antibacterial property was identified as the bacteriocin of Thuricin S by GC-MS. Further, controlling of bacterial blight disease was analyzed in cowpea plants in nursery trails. The nursery trails indicated that thuricin having good disease control ability in both preventive and curative treatments.

Bacillus thuringiensis, Bacteriocin, Thuricin, Cowpea, Bacterial Blight disease, Xanthomonas sp

"Bacillus thuringiensis Thuricin S (Bacteriocin) Efficacy against Bacterial Blight Disease Causative Agent of Xanthomonas sp. in Cowpea", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.376-381, September-2018, Available :http://www.jetir.org/papers/JETIR1809077.pdf

"Bacillus thuringiensis Thuricin S (Bacteriocin) Efficacy against Bacterial Blight Disease Causative Agent of Xanthomonas sp. in Cowpea", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp376-381, September-2018, Available at : http://www.jetir.org/papers/JETIR1809077.pdf