TRANSGENIC POTATO PLANTS OVEREXPRESSING THE PATHOGENESIS-RELATED STH-2 GENE SHOW UNALTERED SUSCEPTIBILITY TO PHYTOPHTHORA-INFESTANS AND POTATO VIRUS-X

被引:42
作者
CONSTABEL, CP [1 ]
BERTRAND, C [1 ]
BRISSON, N [1 ]
机构
[1] UNIV MONTREAL,DEPT BIOCHEM,MONTREAL H3C 3J7,QUEBEC,CANADA
关键词
DISEASE RESISTANCE; PATHOGENESIS-RELATED PROTEINS; PLANT DEFENSE GENES; SOLANUM-TUBEROSUM;
D O I
10.1007/BF00027364
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
The STH-2 gene is rapidly activated in potato leaves and tubers following elicitation or infection by Phytophthora infestans. However, its biochemical function remains unknown. In order to ascertain if STH-2 protein is directly involved in the defense of potato against pathogens, the STH-2 coding sequence under the control of the CaMV 35S promoter was introduced into potato plants. Transgenic plants expressing the STH-2 gene were analyzed for an altered pattern of susceptibility to a compatible race of P. infestans and to potato virus X. Results indicate that constitutive expression of the STH-2 gene did not reduce, susceptibility of potato to these pathogens.
引用
收藏
页码:775 / 782
页数:8
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