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Comparative proteomics provide insights on the basis of resistance to Aspergillus flavus infection and aflatoxin production in peanut (Arachis hypogea L.)

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Relation http://oar.icrisat.org/12716/
https://www.tandfonline.com/doi/full/10.1080/17429145.2021.1995058
https://doi.org/10.1080/17429145.2021.1995058
 
Title Comparative proteomics provide insights on the basis of resistance to Aspergillus flavus infection and aflatoxin production in peanut (Arachis hypogea L.)
 
Creator Bhatnagar-Mathur, P
Yogendra, K
Parankusam, S
Sanivarapu, H
Prasad, K
Lingampali, S B
Sharma, K K
 
Subject Groundnut
Aflatoxins
 
Description Aspergillus flavus is an opportunistic fungal pathogen that produces carcinogenic aflatoxin, a serious constraint for food safety and human health. In this study, to better understand the molecular mechanism/s of peanut resistance to A. flavus growth and aflatoxin accumulation, comparative proteomic analysis was performed in two contrasting peanut genotypes, variety JL 24 (susceptible) and its near-isogenic resistant transgenic derivative expressing an alfalfa defensin gene. Several resistance proteins associated with secondary metabolic pathways were strongly induced in the resistant genotypes including phenylalanine ammonia lyase, cinnamic acid-4-hydroxylase, chalcone synthase, resveratrol synthase, flavanone-3-hydroxylase, lipoxygenase, diacylglycerol-glycerol-3-phosphate-3-phosphatidyltransferase, β-ketoacyl-ACP-reductase, monoacylglycerol acyltransferase, and diacylglycerol acyltransferase, indicating their roles in resistance. Besides, several putative susceptibility-associated proteins were revealed providing knowledge on potential candidate target genes for precise breeding interventions for aflatoxin mitigation. This is the first study to demonstrate comparative proteomics analysis in Aspergillus–peanut interaction using contrasting near-isogenic lines to elucidate the underlying molecular mechanisms of resistance.
 
Publisher Taylor & Francis
 
Date 2021-11-13
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by
 
Identifier http://oar.icrisat.org/12716/1/Journal%20of%20Plant%20Interactions_16_1_494-509_2021.pdf
Bhatnagar-Mathur, P and Yogendra, K and Parankusam, S and Sanivarapu, H and Prasad, K and Lingampali, S B and Sharma, K K (2021) Comparative proteomics provide insights on the basis of resistance to Aspergillus flavus infection and aflatoxin production in peanut (Arachis hypogea L.). Journal of Plant Interactions, 16 (1). pp. 494-509. ISSN 1742-9145