通过多功能机制,诱导大豆结节和固定的变化
Noman Shakoor1, Muzammil Hussain2, Muhammad Adeel3
1Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China.
The Science of the total environment
|August 26, 2023
概括
土壤中的污染会损害大豆生长和固. 高水平减少结节的形成,并影响重要的代谢途径,影响作物产量.
科学领域:
- 农业生态系统科学 农业生态系统科学
- 环境化学环境化学
- 植物生物学 植物生物学
背景情况:
- 农业生态系统中 (Li) 的增加对作物构成风险.
- 对豆类共生和生物固定 (BNF) 的影响尚不清楚.
研究的目的:
- 调查暴露对大豆生长,根结节共生和BNF的影响.
- 阐明大豆中毒性的潜在机制.
主要方法:
- 大豆植物暴露于不同度的 (25,50,和100毫克/公斤-1).
- 评估大豆生长,结节参数和BNF潜力.
- 分析了结节的代谢途径和结节细菌的丰富性 (Ensifer).
主要成果:
- 大豆的生长和结节显示出对的度依赖的反应.
- 高度 (100 mg kg-1) 显著降低了结节的数量,重量和BNF.
- 暴露改变了结节的新陈代谢,特别是吸收和新陈代谢的途径.
- 减少结节与减少Ensifer菌的丰富性有关.
结论:
- 污染会对大豆固定的能力产生负面影响.
- 改变结节代谢和减少Ensifer丰度有助于诱导结节失败.
- 结果为管理农业系统中的Li挑战提供了洞察力.
相关概念视频
Overview of Metabolism
31.0K
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...
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...
31.0K
Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
The Roles of Bacteria and Fungi in Plant Nutrition
36.0K
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.
36.0K
Inorganic Nitrogen Assimilation
44
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...
44


