SEQUENCE AND EXPRESSION OF A WHEAT GENE THAT ENCODES A NOVEL PROTEIN ASSOCIATED WITH PATHOGEN DEFENSE

被引:48
作者
BULL, J [1 ]
MAUCH, F [1 ]
HERTIG, C [1 ]
REBMANN, G [1 ]
DUDLER, R [1 ]
机构
[1] UNIV ZURICH,INST PLANT BIOL,ZOLLIKERSTR 107,CH-8008 ZURICH,SWITZERLAND
关键词
D O I
10.1094/MPMI-5-516
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Wheat (Triticum aestivum) exhibits local acquired resistance to the powdery mildew pathogen Erysiphe graminis f. sp. tritici. The resistant state can be induced by a preinoculation with the nonhost pathogen E. g. f. sp. hordei, the barley powdery mildew, And is accompanied by the activation of putative defense genes. Here, we report the sequence of a pathogen-induced gene, WIR1a, and a corresponding cDNA, WIR1, that encode novel defense-related proteins of 88 and 85 amino acids, respectively. Analysis of the primary structure of these proteins predicts them to be integral membrane proteins with extracytoplasmic C-terminal domains rich in proline and glycine, through which the proteins possibly interact with the cell wall.
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页码:516 / 519
页数:4
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