MutL调控水稻黄单胞菌的致病力

Journal of Tropical Biology(2023)

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Abstract
为了了解水稻白叶枯病菌(Xanthomonas oryzae pv.oryzae,Xoo)中 的MutL/MutS系统是否参与DNA修复以及是否调控病原菌的致病力,构建了 mutL突变体,比较了野生型与mutL突变体的突变率差异,野生型、mutL突变体及其互补菌株侵染水稻的能力.结果显示,mutL突变导致Xoo在H2O2胁迫下的突变率显著升高,mutL突变导致Xoo致病力下降,表明DNA错配修复蛋白MutL参与Xoo 的DNA修复并正调控Xoo致病力.
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