Cloning and characterization of pathogenesis-related protein 4 gene from Panax ginseng

Cloning and characterization of pathogenesis-related protein 4 gene from Panax ginseng The family of pathogenesis-related protein 4 (PR4) is a group of proteins with a Barwin domain in C-terminus and generally thought to be involved in plant defense responses. In the present study, PR4 (designated as PgPR4) cDNA was isolated from the leaf of Panax ginseng C.A. Meyer. and characterized. The ORF is 513 bp with a deduced amino acid sequence of 170 residues. A GenBank BlastX search revealed that the deduced amino acid of PgPR4 shares the highest sequence similarity to PR4 of Sambucus nigra (72% identity). Sequence and structural analysis indicated that PgPR4 belongs to class II of PR4 proteins. This is the first report on the isolation of PR4 gene from the P. ginseng genome. The high-level expression of PgPR4 was observed in the root as revealed by quantitative real-time PCR. The temporal expression analysis demonstrated that PgPR4 expression could be up-regulated by pathogen infection, salt, wounding, and hormone stresses. These results suggest that PgPR4 could play a role in the molecular defense response of ginseng to abiotic stress and pathogen attack. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Cloning and characterization of pathogenesis-related protein 4 gene from Panax ginseng

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443714050100
Publisher site
See Article on Publisher Site

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