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- W3149117790 abstract "Abstract Background Spotted stem borer- Chilo partellus - a Lepidopteran insect pest of Sorghum bicolor is responsible for major economic losses. It is an oligophagous pest, which bores through the plant stem, causing ‘deadheart’ and hampering the development of the main cob. We applied a label-free quantitative proteomics approach on three genotypes of S. bicolor with differential resistance/ susceptibility to insect pests, intending to identify the S. bicolor’s systemic protein complement contributing to C. partellus tolerance. Methods The proteomes of S. bicolor with variable resistance to insect pests, ICSV700, IS2205 (resistant) and Swarna (susceptible) were investigated and compared using label-free quantitative proteomics to identify putative leaf proteins contributing to resistance to C. partellus . Results The multivariate analysis on a total of 967 proteins led to the identification of proteins correlating with insect resistance/susceptibility of S. bicolor . Upon C. partellus infestation S. bicolor responded by suppression of protein and amino acid biosynthesis, and induction of proteins involved in maintaining photosynthesis and responding to stresses. The gene ontology analysis revealed that C. partellus -responsive proteins in resistant S. bicolor genotypes were mainly involved in stress and defense, small molecule biosynthesis, amino acid metabolism, catalytic and translation regulation activities. At steady-state, the resistant S. bicolor genotypes displayed at least two-fold higher numbers of unique proteins than the susceptible genotype Swarna, mostly involved in catalytic activities. Gene expression analysis of selected candidates was performed on S. bicolor by artificial induction to mimic C. partellus infestation. Conclusion The collection of identified proteins differentially expressed in resistant S. bicolor , are interesting candidates for further elucidation of their role in defense against insect pests." @default.
- W3149117790 created "2021-04-13" @default.
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- W3149117790 date "2021-04-02" @default.
- W3149117790 modified "2023-10-09" @default.
- W3149117790 title "Label-free quantitative proteomics of Sorghum bicolor reveals the proteins strengthening plant defense against insect pest Chilo partellus" @default.
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- W3149117790 doi "https://doi.org/10.1186/s12953-021-00173-z" @default.
- W3149117790 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8019186" @default.
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- W3149117790 hasPublicationYear "2021" @default.
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