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Genet Mol Res. 2013 Apr 26;12(2):1468-78. doi: 10.4238/2013.April.26.8.

Molecular characterization and functional analysis of the Nep1-like protein-encoding gene from Phytophthora capsici.

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  • 1Department of Life Sciences, Yuncheng University, Yuncheng, China. fengbaozhen@126.com

Abstract

Phytophthora capsici is an aggressive plant pathogen that affects solanaceous and cucurbitaceous hosts. Nep1-like proteins (NLPs) are a group of effectors found particularly in oomycetes and considered important virulence factors. We identified an NLP gene (phcnlp1) from the highly virulent P. capsici strain Phyc12 that had an encoded polypeptide of 476-amino acid residues and a predicted molecular mass of 51.75 kDa. We performed quantitative reverse transcription-polymerase chain reaction to detect the expression pattern of phcnlp1 during various phases of interaction with the host plant, and the results showed that phcnlp1 was increasingly expressed during symptom development after P. capsici infection of pepper leaves. We also confirmed that phcnlp1 caused significant necrosis on tobacco plants when expressed based on potato virus agroinfection. All results indicated that phcnlp1 belongs to the NLP gene family and is important for the pathogenesis of P. capsici in its hosts.

PMID:
23661469
[PubMed - indexed for MEDLINE]
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