m6A mRNA甲基化在植物防御中的作用
Rakesh Srivastava1, Niraj Lodhi2
1Department of Biotechnology, School of Sciences, Noida International University, Noida 203201, India.
Epigenomes
|October 24, 2025
概括
N6-甲基氨酸 (m6A) 是一种关键的RNA修饰,调节植物对病原体的防御. 了解m6 一种表谱学为作物保护提供了新的策略.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- N6-甲基氨酸 (m6A) 是真核生物中最常见的RNA修饰.
- m6A通过编写器,擦拭器和阅读器在转录后调节基因表达.
- m6A在植物防御和病原体相互作用中起着至关重要的作用.
研究的目的:
- 审查最近在植物中A介导的表表转录组调节方面取得的进展.
- 专注于m6A在植物对生物压力的反应中的作用.
- 要突出针对植物保护的m6A的潜力.
主要方法:
- 关于植物中m6A的当前研究的文献综述.
- 分析m6A在植物免疫和病原体毒性中的作用.
- 综合关于m6A参与生物应激反应的发现.
主要成果:
- m6 在植物中微调防御基因表达和RNA处理.
- 病原体利用m6A来增强它们的毒性.
- m6A在植物防御和病原体适应方面表现出双重作用.
结论:
- m6 表体转录组学是植物病原体相互作用中的重要调节层.
- 针对m6A路径为作物保护战略提供了新的机会.
- 进一步研究m6一个法规可以增强农业的弹性.
相关概念视频
Cell Signaling in Plants
6.1K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
6.1K
mRNA Stability and Gene Expression
6.5K
The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity.
Cis-acting Elements involved in mRNA stability
Cis-acting Elements involved in mRNA stability
6.5K
Riboswitches
9.5K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
9.5K
Defenses Against Pathogens and Herbivores
29.5K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
29.5K
RNA Stability
35.6K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.6K
MicroRNAs
3.8K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.8K


