ENOD12基因产物在豆-豆相互作用过程中参与感染过程
B Scheres1, C Van De Wiel, A Zalensky
1Department of Molecular Biology, Agricultural University, Wageningen, The Netherlands.
Cell
|January 26, 1990
概括
豆ENOD12基因对与生菌的共生相互作用至关重要,其表达是由细菌化合物触发的. 这种基因在感染中起作用,并且在各种植物组织中发现.
科学领域:
- 植物分子生物学 植物分子生物学
- 微生物共生是微生物的共生.
- 豆类研究 豆类研究
背景情况:
- 豆类基因ENOD12参与了Pisum sativum L. (豆类) 和Rhizobium leguminosarum bv.之间的共生关系. 恶毒的. 恶毒的.
- 蛋白质ENOD12含有含有基的五,其基因表达是在植物细胞感染线程迁移期间诱导的.
研究的目的:
- 研究豆ENOD12基因在Rhizobium共生过程中的作用和调节.
- 了解由生菌引起ENOD12基因表达的信号分子.
主要方法:
- 对豆cDNA克隆pPsENOD12的分析.
- 研究基因表达模式,以应对虫菌感染.
- 研究Rhizobium结节基因的作用.
主要成果:
- ENOD12基因表达在具有和没有感染线程的细胞中被诱导.
- 溶解的瑞佐化合物,依赖于结节基因,引起ENOD12的表达.
- 两个ENOD12基因在结节和干组织中表达;克隆基因也存在于花朵中.
结论:
- ENOD12基因是豆类-生菌共生早期的一个关键组成部分.
- 细菌信号分子对于通过ENOD12.12启动共生反应至关重要.
- ENOD12表现出多样化的表达模式,这表明它在植物发育中扮演了多个角色.
相关概念视频
Exon Recombination
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Gene Regulation in Microbial Communities: Quorum Sensing
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
Stringent Response in E. coli
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
Microbe-Plant Interactions
Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...


