过度表达GmSRC2使大豆产生对Phytophthora sojae的耐药性

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Sushuang Deng¹, Yu Zhang¹, Xiaowan Fang¹

¹Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture / Zhongshan Biological Breeding Laboratory (ZSBBL) / National Innovation Platform for Soybean Breeding and Industry-Education Integration / State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization / College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.

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|September 23, 2024

概括

豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆

科学领域:

植物病理学植物病理学
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

由Phytophthora sojae引起的Phytophthora根和茎腐烂是大豆生产的主要威胁.
豆类对P. sojae的耐药性背后的分子机制尚未完全理解.
已知 GmSRC2 是一种含有 C2 域的蛋白质,能够应对各种压力.

研究的目的:

阐明GmSRC2在大豆对Phytophthora sojae的耐药性中的作用.
为了研究GmSRC2和P. sojae效应体之间的相互作用.
了解由GmSRC2.2调节的下游信号通路.

主要方法:

使用Agrobacterium tumefaciens介导的转化和病毒诱导的基因沉默 (VIGS) 来生成GmSRC2-过度表达 (OE) 的转基因大豆系和GmSRC2-沉默的过渡植物.
对受感染的叶子和花的疾病评估,以及P. sojae生物质的量化.
测量超氧化物脱酶 (SOD) 和过氧化酶 (POD) 活动,以评估活性氧物种 (ROS) 积累.
使用相互作用试验证实了GmSRC2与P. sojae效应物PsAvh23的相互作用.
对ADA2/GCN5模块表达的分析,以应对GmSRC2-过度表达线中的P. sojae.

主要成果:

在P. sojae感染后,GmSRC2表达显著上调.
与野生类型 (WT) 相比,OE-GmSRC2系表现出减少的疾病症状和较低的P. sojae生物量.
沉默GmSRC2导致疾病严重程度增加和P. sojae生物量增加.
GmSRC2与P. sojae效应器PsAvh23相互作用,C2域对这种相互作用至关重要.
过度表达GmSRC2导致ADA2/GCN5模块的上调.

结论:

GmSRC2在大豆防御Phytophthora sojae方面发挥着至关重要的作用.
GmSRC2通过与病原体效应物的相互作用和宿主基因表达的调节来调节耐药性.
这些发现提供了关于大豆菌体耐药性的分子基础的见解.

关键词:

在 GmSRC2 中使用.植物植物的根和茎腐烂.植物的抗性植物的抗性这就是为什么PsAvh2323 豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆

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