传感器和辅助NLRs的家族间共同转移扩展了血管种子之间的免疫受体功能
Xiaofei Du1, Maheen Alam2, Kamil Witek3
1State Key Laboratory of Agricultural and Forestry Biosecurity, Frontiers Science Center for Molecular Design Breeding, Department of Plant Pathology, China Agricultural University, Beijing 100193, China.
Cell
|June 18, 2025
概括
研究人员在不同植物家族中启用了植物免疫受体 (NLR) 基因功能. 这一突破使得Solanaceae的NLR能够在大米和大豆中发挥作用,
科学领域:
- 植物免疫学
- 分子遗传学
- 农作物科学
背景情况:
- 植物免疫受体,核酸结合,丰富的重复 (NLR) 基因,识别病原体,但可以在远距离相关的植物中具有受限的分类功能 (RTF).
- 在植物家族中启用NLR基因功能对于培养作物广泛抗病能力至关重要.
研究的目的:
- 克服植物NLR基因的受限分类功能.
- 在米,大豆和阿拉比多普西斯等异种植物中启用Solanaceae传感器NLR基因的功能.
主要方法:
- 传感器NLR基因与细胞死亡 (NRC) 类型辅助NLR所需的同源NLR的同时传递.
- 在大豆原塑和阿拉比多植物中的表达分析.
- 通过使用Xanthomonas oryzae pv对米的功能验证. 这里有很多东西.
主要成果:
- 当与大豆和阿拉比多普西斯中的NRC助手NLR共同表达时,Solanum americanum Rpi-amr1,Rpi-amr3和胡Bs2传感器NLR赋予了效应器反应.
- 表示胡Bs2的线和NRCs识别了保存的效应因子AvrBs2.
- 这些米种表现出对Xanthomonas oryzae pv的耐药性. 这种病原体缺乏天然抗药性.
结论:
- 传感器和辅助NLR的家族间共同传输成功地扩大了传感器NLR的实用性.
- 这种方法为提高大米,大豆,豆和其他作物的抗病能力提供了新的工具.
相关概念视频
01:25Cell Signaling in Plants
5.8K
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...
5.8K
01:16Transduction
144
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
144
02:50Transgenic Plants
7.5K
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...
7.5K
02:00Photoreceptors and Plant Responses to Light
25.6K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
25.6K
02:13Overview of Transposition and Recombination
16.1K
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
16.1K
02:18Types of Genetic Transfer Between Organisms
5.5K
5.5K