TITLE

Overexpression of OgPAE1 from wild rice confers fungal resistance against Botrytis cinerea

AUTHOR(S)
Eun Hee Jeon; Eun Sook Chung; Jung Hun Pak; Jae Sung Nam; Sung Ki Cho; Sang Hyun Shin; Doh Hoon Kim; Gyung Tae Kim; Jai Heon Lee; Kyung Ho Kang; Young Soo Chung
PUB. DATE
July 2008
SOURCE
Journal of Plant Research;Jul2008, Vol. 121 Issue 4, p435
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A full-length cDNA of the OgPAE1 gene encoding the α5 subunit of the 20S proteasome was isolated from wild rice ( Oryza grandiglumis) treated by wounding or with a fungal elicitor. The deduced amino acid sequence of OgPAE1 comprises 237 amino acids (25.99 kDa), and shows 94.5% homology with Arabidopsis thaliana AtPAE1. Expression of OgPAE1 is regulated by defense-related signaling chemicals such as cantharidin, endothall and jasmonic acid. Overexpression of OgPAE1 in A. thaliana leads to resistance to the fungal pathogen Botrytis cinerea by lowering disease rate and size of necrotic lesions, and by less penetration and colonization of fungal hyphae. The results indicate that the 20S proteasome from wild rice is involved in the B. cinerea defense pathway via an as yet undetermined mechanism.
ACCESSION #
32960702

 

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