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« Previous AbstractAquatic insect predators and mosquito control    Next AbstractCharacterization of the major antifungal extrolite from rice endophyte Lysinibacillus sphaericus against Rhizoctonia solani »

3 Biotech


Title:Bioprospecting endophytic diazotrophic Lysinibacillus sphaericus as biocontrol agents of rice sheath blight disease
Author(s):Shabanamol S; Sreekumar J; Jisha MS;
Address:"School of Biosciences, M G University, Kottayam, Kerala India. Central Tuber Crops Research Institute, Trivandrum, Kerala India. ISNI: 0000 0001 2169 875X. GRID: grid.418373.a"
Journal Title:3 Biotech
Year:2017
Volume:20170920
Issue:5
Page Number:337 -
DOI: 10.1007/s13205-017-0956-6
ISSN/ISBN:2190-572X (Print) 2190-5738 (Electronic) 2190-5738 (Linking)
Abstract:"The present study tried to explore the possible in vitro biocontrol mechanisms of Lysinibacillus sphaericus, a diazotrophic endophyte from rice against the rice sheath blight pathogen Rhizoctonia solani. The in vivo biocontrol potential of the isolate and the induction of systemic resistance under greenhouse conditions have also been experimented employing different treatments with positive control carbendazim, the chemical fungicide. The endophytic isolate showed 100% growth inhibition of the fungal pathogen via volatile organic compound production and was positive for the production of siderophores, biosurfactants, HCN, and ammonia. Under greenhouse conditions, foliar and soil application of L. sphaericus significantly decreased the percentage of disease incidence. All bacterized treatments are superior to chemical fungicide treatment. Application of L. sphaericus in single and combination treatments induces systemic resistance as evident from the significant accumulation of defense enzymes such as peroxides, polyphenol oxides and phenylalanine ammonia in addition to the increase of phenolic compounds. The results biologically prospect endophytic diazotroph L. sphaericus as a potent plant growth promoter with excellent biocontrol efficiency"
Keywords:Biocontrol Diazotrophs Isr Lysinibacillus sphaericus Rhizoctonia solani Siderophore;
Notes:"PubMed-not-MEDLINEShabanamol, S Sreekumar, J Jisha, M S eng Germany 2017/09/29 3 Biotech. 2017 Oct; 7(5):337. doi: 10.1007/s13205-017-0956-6. Epub 2017 Sep 20"

 
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