在Pseudomonas syringae pv.中的五种Rsm蛋白的表达,调节和生理作用. 番茄 DC3000 DC3000 的时间
Adriana Vásquez1, María-Dolores Ferreiro1, Laura Martínez-Rodríguez1
1Department of Soil and Plant Microbiology, Estación Experimental del Zaidín (EEZ-CSIC), Granada, Spain.
Microbiological research
|October 22, 2024
概括
伪虫的注射器 pv. 番茄DC3000有五种Rsm蛋白调节基因表达. 在测试条件下,RsmA和RsmE在功能上很重要,而RsmC和RsmD在测试条件下似乎不活跃.
科学领域:
- 细菌学 细菌学是一门学科.
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
背景情况:
- RsmA/CsrA蛋白质是细菌中关键的转录后调节器.
- 伪虫的注射器 pv. 番茄 (Pto) DC3000独特地拥有五个Rsm对应基因,与大多数单基因细菌不同.
研究的目的:
- 综合分析Pto DC3000中五个Rsm蛋白的表达,调节和生理作用.
- 阐明RSM基因的遗传背景和促进子区域.
- 确定RSM基因删除和过度表达对细菌表型的影响.
主要方法:
- 在Pto DC3000中对五个rsm基因 (rsmA,rsmE,rsmC,rsmD,rsmH) 的基因表达分析.
- 确定促进区域和运营结构.
- 对具有改变rsm基因表达 (删除/过度表达) 的Pto DC3000菌株进行表型分析.
主要成果:
- RsmA和RsmC是操作子的一部分;RsmH与下游基因共同转录.
- 在五个rsm对应物中,表达水平和RpoS依赖程度在五个rsm对应物中差异很大.
- RsmA,RsmE和RsmH在测试的介质中显示出显著的表达 (群,最小,T3SS诱导).
- 在测试条件下,RsmE和RsmA在功能上是关键的;RsmH在功能上是微不足道的;RsmC和RsmD在测试条件下是非功能性的.
结论:
- Pto DC3000利用了一个复杂的Rsm调控系统,其中具有明显表达模式和功能重要性的paralogs.
- 在Pto DC3000中,RSMA和RSME是主要的功能性RSM蛋白,控制关键的表型.
- RsmC和RsmD似乎在特定的,不具特色的条件下是非功能性的或受调节的.
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