Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/44170
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Type: Journal article
Title: Induction of a grapevine germin-like protein (VvGLP3) gene is closely linked to the site of Erysiphe necator infection: A possible role in defense?
Author: Godfrey, D.
Able, A.
Dry, I.
Citation: Molecular Plant-Microbe Interactions, 2007; 20(9):1112-1125
Publisher: Amer Phytopathological Soc
Issue Date: 2007
ISSN: 0894-0282
Abstract: Germin-like proteins (GLP) have various proposed roles in plant development and defense. Seven novel GLP cDNA clones were isolated from grapevine (Vitis vinifera cv. Chardonnay). Reverse transcriptase-polymerase chain reaction expression analysis revealed that the VvGLP genes exhibit diverse and highly specific patterns of expression in response to a variety of abiotic and biotic treatments, including challenge by Erysiphe necator, Plasmopara viticola, and Botrytis cinerea, suggesting a diversity of roles for each of the GLP family members. Significantly, one of the grapevine GLP genes, VvGLP3, is induced specifically by E. necator infection and expression is closely linked to the site of infection. Subcellular localization of VvGLP3 determined by transient expression of a VvGLP3:GFP fusion construct in onion cells indicated that the recombinant protein was targeted to the cell wall. Recombinant VvGLP3 was successfully expressed in Arabidopsis thaliana and the partially purified recombinant protein was demonstrated to have superoxide dismutase activity. This data has provided an insight into the diverse nature of the GLP family in grapevine and suggests that VvGLP3 may be involved in the defense response against E. necator.
Keywords: Ascomycota; Arabidopsis; Onions; Vitis; Plant Leaves; Salicylic Acid; Ethylenes; Cyclopentanes; Superoxide Dismutase; Plant Proteins; Recombinant Proteins; Cloning, Molecular; Phylogeny; Signal Transduction; Plant Diseases; Gene Expression Regulation, Plant; Amino Acid Sequence; Multigene Family; Molecular Sequence Data; Oxylipins
Description: Copyright © 2007 The American Phytopathological Society
RMID: 0020074246
DOI: 10.1094/MPMI-20-9-1112
Published version: http://apsjournals.apsnet.org/doi/abs/10.1094/MPMI-20-9-1112
Appears in Collections:Agriculture, Food and Wine publications

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