Antibacterial Ability of Beauveria bassiana (Balsamo) Vuillemin against Xanthomonas oryzae pv. oryzae causing Bacterial leaf Blight of Rice

Author: Lipa Deb, R.K. Tombisana Devi, Pranab Dutta, Dipali Majumder, Dwipendra Thakuria, T. Rajesh and Kennedy Ningthoujam

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Abstract

Beauveria bassiana (Balsamo) Vuillemin, a white muscardine fungus has drawn attention worldwide as potential biocontrol agent against insect-pests since decades. In the rice ecosystem, B. bassiana has been established as potential mycoinsecticide against major insect-pests of rice viz., Cnaphalocrocis medunalis, Nilaparvata lugens, Dicladispa armigera, Scirpophaga incertulas etc., but its efficacy against phytopathogens of rice in simultaneous application is least studied. Among major phytopathogens of rice, bacterial leaf blight incurs a yield loss of up to 12-75%, affecting crop at seedling, tillering and vegetative stages. Therefore, recent studies have inclined towards unravelling antimicrobial potential of B. bassiana as effective plant disease antagonist, thereby, opening a newer dimension in dual-purpose crop protection strategies. In the present study, antagonistic abilities of fifteen (15) native isolates of B. bassiana were evaluated against Xanthomonas oryzae pv. oryzae caus

Keywords

Antibacterial, B. bassiana, entomopathogen, X. oryzae pv. oryzae, rice