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Updated: Jul 16, 2025

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青杆菌 (Plasmodiophora brassicae) 通过分泌转录因子类型的效应体PbZFE1FE1来影响宿主基因表达

Sugihiro Ando¹, Shinsuke Otawara¹, Yutaka Tabei^2,3

¹Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaza-Aoba, Aoba-ku, Sendai, Miyagi 980-8572, Japan.

Journal of experimental botany

|September 22, 2023

概括

植物病原体Plasmodiophora brassicae分泌一种指蛋白 (PbZFE1),该蛋白针对宿主基因,导致十字花植物的球根病. 这种效应器会破坏宿主发育和新陈代谢.

科学领域:

植物病理学植物病理学
分子生物学分子生物学
生物化学生物化学

背景情况:

球根病是由Plasmodiophora brassicae引起的,显著影响十字植物作物.
病原体操纵宿主植物的新陈代谢和发育,但调节机制仍然不清楚.
在俱乐部根的形成过程中,来自auxin生物合成基因BrNIT2的特定促进子序列 (Pnit2int2) 被激活.

研究的目的:

为了研究Pnit2int2促进体的转录调节.
为了确定参与P. brassicae诱导的球根发育的病原体因素.
了解P. brassicae如何操纵宿主基因表达.

主要方法:

酵母的一种混合查,以识别DNA结合蛋白.
电泳运动转移试验 (EMSA) 来确认蛋白质-DNA相互作用.
GUS记者在转基因Arabidopsis thaliana中进行了测试,以评估植物中的促进剂活性.

主要成果:

病原体指蛋白PbZFE1被确定为Pnit2int2促进体的特定结合剂.
结合Pnit2int2的PbZFE1对扎根中的促进子活性至关重要.
PbZFE1由P. brassicae分泌,并在宿主植物细胞内作为转录因子起作用.
在Arabidopsis thaliana中,PbZFE1的子宫外表达导致生长和开花的延迟.

结论:

青杆菌 (Plasmodiophora brassicae) 分泌的效应物PbZFE1可以操纵宿主基因表达和发育.
PbZFE1充当转录因子,准像BrNIT2这样的宿主基因,促进俱乐部根的形成.
了解PbZFE1的功能,可以了解病原体的毒性策略和宿主-病原体相互作用.

关键词:

这就是Brassica Brassica.一个辅助的Auxin.俱乐部根病俱乐部根病效应器效应器是一个有效的效应器.亚酸酶的使用方法原始主义者原始主义者转录因子的转录因子指蛋白质是一种指蛋白质.

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