大豆宿主和大豆内共生体的基因设计减少了大豆根球的N2O排放
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
在PubMed上查看摘要
概括
此摘要是机器生成的。我们开发了一种大豆-菌共生系统, 这种系统利用基因不相容,有利于具有高N2O降低活性的根茎植物,从而在农业中显著减少排放.
科学领域
- 农业科学
- 微生物学
- 植物科学
背景情况
- 大豆通过与根茎生物的共生来固定大气中的 (N2).
- 高氧化物 (N2O) 降低 (N2OR) 基生植物可以减轻农业N2O排放.
- 具有低N2OR活性的土著根茎植物的竞争阻碍了有效的接种.
研究的目的
- 克服在野外条件下用高N2OR活性根茎菌接种大豆的挑战.
- 开发一种大豆-虫共生系统,有利于具有高N2OR活性的虫.
- 通过优化共生来减少农业土壤的N2O排放.
主要方法
- 使用大豆 (Rj2和GmNNL1基因) 和根茎植物之间的天然遗传不相容系统.
- 采用被改造为缺乏NopP效应蛋白的布拉迪里索比亚菌株.
- 结合一个大豆系,积累了Rj2和GmNNL1基因与nopP缺陷的布拉迪里索比亚.
主要成果
- 一个大豆-虫共生系统的成功开发.
- 主要感染的是表现出高N2OR活性的布拉迪里索比亚菌株.
- 在实验室和实地测试中观察到的N2O排放量大幅减少.
结论
- 开发的共生系统有效地减少了N2O排放.
- 这种方法为可持续农业实践提供了一个有前途的战略.
- 利用植物微生物的基因相互作用可以增强固共生和环境效益.
相关概念视频
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
The collective bacteria residing in and around plant roots are termed the rhizosphere. These soil-dwelling bacterial species are incredibly diverse....
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.
As humans' understanding of genetics advanced, improved crop varieties could be achieved more quickly. Artificial selection could be more directed, and crop varieties enhanced for favorable traits more quickly to produce better, more robust, or more palatable...
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...