一个脂氧酶基因调节莉花生物合成,以增强大米的爆炸阻力
Lanlan Wang1, Yumeng Chen2, Fan Deng1,3
1State Key Laboratory for Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China.
Journal of experimental botany
|January 25, 2025
概括
米植物需要OsLOX9基因用于莉酸 (JA) 生产,以对抗破坏性的爆发性真菌. OsLOX9对于激活抗击这种病原体的防御途径至关重要.
科学领域:
- 植物病理学 植物病理学
- 分子植物生物化学 分子植物生物化学
- 植物与微生物的相互作用
背景情况:
- 雅斯蒙酸 (JA) 信号传递对于植物对抗生物应激的防御至关重要.
- 病原体感染通常会触发植物中JA水平的增加.
- 在大米 (Oryza sativa) 中病原体诱导的JA积累的机制尚未完全理解.
研究的目的:
- 为了研究米对Magnaporthe oryzae感染的反应中氧化酶基因OsLOX9的作用.
- 阐明OsLOX9在莉酸生物合成和植物防御中的功能.
主要方法:
- 在大米中描述OsLOX9基因表达和功能.
- 对lox9突变体对M. oryzae的敏感性的分析.
- 测量植物激素水平 (12-oxo-phytodienoic 酸,JA,JA-Ile).
- RNA测序分析基因表达的变化,以应对感染.
主要成果:
- OsLOX9的表达是由M. oryzae感染引起的.
- lox9突变体对M. oryzae的敏感性增加,JA积累减少.
- 由OsLOX9衍生出的JA对于调节类植物素基因至关重要.
- OsMYC2转录因子积极调节OsLOX9的表达,形成一个反循环.
结论:
- OsLOX9是一种关键的,由真菌诱导的米中的JA生物合成基因.
- OsLOX9对大米对爆发性疾病的耐药性起着重要作用.
- 一个涉及OsMYC2和OsLOX9的积极反机制增强了植物防御.
关键词:
马格纳波特花 (Magnaporthe oryzae) 是一个很大的植物.这种13-lipoxygenase的作用.转录因子MYC2的转录因子斯酸 (JA) 是一种米 米饭 米饭 米饭 米饭.抗米爆炸阻力 抗米爆炸阻力更多相关视频
11:33Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
Published on: October 14, 2022
1.5K
07:14The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea
Published on: August 4, 2018
12.5K
相关概念视频
Transgenic Plants
7.1K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.1K
Cell Signaling in Plants
5.6K
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...
5.6K
Adaptations that Reduce Water Loss
25.1K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.1K
Plant Breeding and Biotechnology
18.8K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.8K
