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首页> 外文会议>International Agro-Biotechnology Conference; 2005; Heilongjiang(CN) >Study on Selection and Ultrastructures of Wheat Mutant with Resistance to Scab
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Study on Selection and Ultrastructures of Wheat Mutant with Resistance to Scab

机译：抗赤霉病的小麦突变体的选择和超微结构研究

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摘要

Screening wheat new lines with resistance to Fusarium graminearum, were conducted by in vitro induced mutation and cell screening. The inoculation in field showed that the resistance of mutant 92K809 was 1—2 degree higher than that of its parent. Under treatment of scab pathogenic crude toxin, the cellular ultrastructure of the disease-resistant mutant and its parent was different. With increase of time exposed to scab toxin, the damage on organelle became serious. However, the disruption of cellular ultrastructure occurred more slightly and later in mutant 92K809 than its parent XinKe No. 9. The most sensitive organelle to toxin was mitochondria, then in the order of chloroplast, cytoplasm and nucleus membrane. The effect of scab toxin on pathogenic mechanism was discussed.
机译：通过体外诱导的突变和细胞筛选，筛选出对禾本科镰刀菌具有抗性的小麦新品系。田间接种表明，突变体92K809的抗性比其亲本高1-2度。在of疮致病性粗毒素的处理下，抗病突变体及其亲本的细胞超微结构不同。随着结sc毒素暴露时间的增加，对细胞器的损害变得严重。但是，突变体92K809的细胞超微结构破坏发生的频率比其亲本9号稍晚一些。突变体中对毒素最敏感的细胞器是线粒体，其次是叶绿体，细胞质和细胞核膜。讨论了sc疮毒素对致病机​​制的影响。

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