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Streptomyces sp. as plant growth-promoters and host-plant resistance inducers against Botrytis cinerea in chickpea

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Relation http://oar.icrisat.org/10846/
http://dx.doi.org/10.1080/09583157.2018.1515890
10.1080/09583157.2018.1515890
 
Title Streptomyces sp. as plant growth-promoters and host-plant resistance inducers against Botrytis cinerea in chickpea
 
Creator Vijayabharathi, R
Gopalakrishnan, S
Sathya, A
Vasanth Kumar, M
Srinivas, V
Mamta, S
 
Subject Crop Improvement
Chickpea
Plant Growth
 
Description Two hundred and fifty seven actinobacteria, isolated from five different rhizosphere soils of chickpea, were evaluated for their antagonistic potential against Botrytis cinerea, causal agent of Botrytis grey mold (BGM) disease in chickpea, by dual culture assay. Of them, three most promising isolates (ATIRS43, ATIRS65 and ARRS10) with highest inhibitory activity (67–77%) were identified as Streptomyces sp. These selected isolates induced growth of chickpea genotype JG11 as a consortium rather than an individual inoculum. Co-inoculation of the selected Streptomyces sp. with Mesorhizobium ciceri UPM-Ca7T enhanced nodulation and nitrogenase activity in five chickpea genotypes (ICCV2, ICCV10, ICC4958, Annigeri and JG11). The selected Streptomyces sp. significantly reduced the disease incidence caused by B. cinerea by 28–47% over the un-inoculated control across the chickpea genotypes ICC4954 (susceptible), ICCV05530 (moderately resistant) and JG11 (unknown resistance). The Streptomyces sp. were also able to induce host-plant resistance, irrespective of the genotype, through the induction of various antioxidant enzymes and phenolics. Phenolic profiling of B. cinerea-affected and Streptomyces treated plants of ICCV05530 further confirmed host-plant resistance traits. This study indicated that the selected Streptomyces sp. have the potential for biological control of BGM disease in chickpea.
 
Publisher Taylor & Francis
 
Date 2018
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10846/1/Streptomyces%20sp.%20as%20plant%20growth-promoters.pdf
Vijayabharathi, R and Gopalakrishnan, S and Sathya, A and Vasanth Kumar, M and Srinivas, V and Mamta, S (2018) Streptomyces sp. as plant growth-promoters and host-plant resistance inducers against Botrytis cinerea in chickpea. Biocontrol Science and Technology (TSI). pp. 1-24. ISSN 0958-3157