Isolation of a Rice WRKY Gene OsWRKY52,Whose Expression Is Induced by Magnaporthe grisea / 生物化学与生物物理进展
Progress in Biochemistry and Biophysics
;
(12): 937-946, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-409565
ABSTRACT
WRKY proteins, a big family of transcription factors, are involved in regulation diverse developmental and physiological processes in plants. Here, a novel WRKY gene, OsWRKY52, was isolated from a rice cDNA library. This gene included an open reading frame of 1 719 bp in length, and the deduced polypeptide contained 572 amino acids,sharing 54% identity with a WRKY1 protein from Avena sativa. Expression of OsWRKY52 gene was induced rapidly by Magnaporthe grisea in the incompatible interaction with rice plant. OsWRKY52 protein, expressed prokaryotically bound specifically to W box cis elements derived from the promoter of a rice PR1a. Transcriptional activation assay was performed by a yeast one- hybrid method. Regions of transactivation were identified to be the N-terminal serine- and threonine-rich islands and the C-terminal acidic domain of OsWRKY52. These results suggest that OsWRKY52, as a transcription activator, may be involved in defense responses against Magnaporthe grisea in rice plants.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
Language:
Chinese
Journal:
Progress in Biochemistry and Biophysics
Year:
2005
Type:
Article
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