THE RELATIONSHIP BETWEEN THE EXPRESSION OF DEFENSE-RELATED GENES AND MILDEW DEVELOPMENT IN BARLEY
THE RELATIONSHIP BETWEEN THE EXPRESSION OF DEFENSE-RELATED GENES AND MILDEW DEVELOPMENT IN BARLEY
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DOI：
10.1094/mpmi-7-0401
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发表时间：
1994-05-01
影响因子：
3.5
通讯作者：
BROWN, JKM
中科院分区：
文献类型：
--
作者：
BOYD, LA;SMITH, PH;BROWN, JKM
研究了大麦中5个防御相关基因的诱导与真菌白粉菌发育的关系。大麦，白粉病的病原体。用两个近等基因的E. G. F.大麦疫霉分离物CC142（Aa6）和CC143（Va6）。防御基因不是由单独的创伤诱导的，而是需要生长的病原体的存在。防御基因诱导响应两个分离株，接种后24小时表现出相似的转录模式。仅在24小时后才观察到对无毒分离物的抗性反应。接种后30小时，观察到两种分离株的发育速率存在显着差异。无毒分离物CC142的发展的抑制，抑制了所检查的五个防御基因中的三个的持续高水平的转录。
The induction of five defense-related genes in barley was examined in relation to the development of the fungus Erysiphe graminis f. sp. hordei, the causal agent of powdery mildew. The barley cultivar Midas, carrying the resistance allele Mla6, was inoculated with one of two near-isogenic E. g. f. sp. hordei isolates, CC142 (Aa6) and CC143 (Va6). The defense genes were not induced by wounding alone, but required the presence of the growing pathogen. The defense genes were induced in response to both isolates, showing similar transcript patterns up to 24 hr after inoculation. It was only after 24 hr that a resistance response to the avirulent isolate was seen. By 30 hr after inoculation a significant difference in the rates of development of the two isolates was observed. The inhibition of the development of the avirulent isolate, CC142, paralleled the continued high levels of transcript seen for three of the five defense genes examined.