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  • Title: A Botrytis cinerea KLP-7 Kinesin acts as a Virulence Determinant during Plant Infection.
    Author: Tayal P, Raj S, Sharma E, Kumar M, Dayaman V, Verma N, Jogawat A, Dua M, Kapoor R, Johri AK.
    Journal: Sci Rep; 2017 Sep 06; 7(1):10664. PubMed ID: 28878341.
    Abstract:
    Botrytis cinerea is a necrotrophic pathogen that infects many important crops. In an attempt to unravel some novel factors that govern pathogenicity in B. cinerea, Agrobacterium tumefaciens mediated transformation (ATMT) was deployed, and a number of tagged transformants were generated. Among these, a mutant, BCM-29 exhibited slower growth rate, reduced conidia size, conidiation and penetration. The mutant was also defective in secretion of oxalic acid (OA) and exhibited reduced activities of polygalacturonase (PG) and pectin methyl esterases (PME). TAIL-PCR followed by BLAST search identified the tagged gene as KLP-7 that encodes for kinesin. Targeted deletion of KLP-7 resulted in several folds decrease in virulence of mutants as compared to WT, while complementation of the gene helped in rescue of virulence traits. This is the first time when a unique kinesin KLP-7 that is mainly found in the phylum Pezizomycotina has been linked to virulence in B. cinerea.
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