吸附氨的细菌促进小麦 (Triticum aestivum) 的生长和的利用
Yuqian Gao1, Qi Zhang1, Yuannan Chen1
1Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China.
Microorganisms
|January 25, 2025
概括
这项研究确定了Enterobacter sp. B12是一种吸收氨的细菌,可以增强小麦的生长和的吸收. 它显示出作为一种促进植物生长的根茎细菌 (PGPR) 的潜力,以减少肥料损失.
科学领域:
- 农业微生物学 农业微生物学
- 植物科学 植物科学
- 生物化学 生物化学
背景情况:
- 肥对农业至关重要,但容易造成损失.
- 吸收氨的细菌可以固定氨,减少气损失.
- 这些细菌的农业应用仍未得到充分探索.
研究的目的:
- 为了识别和描述农业用途的氨同化细菌.
- 评估Enterobacter sp.的促进植物生长的潜力. 在小麦中的B12.
- 了解氨同化和植物微生物相互作用的机制.
主要方法:
- 隔离和识别吸收氨的细菌.
- 在小麦中用Enterobacter sp.进行小麦接种. 在不同的氨度下B12.
- 测量植物生长参数,含量和根酶活动 (GDH,GS,GOGAT,SOD,CAT,POD).
- 对氨同化通路 (GDH和GS-GOGAT) 和相关基因表达的分析.
主要成果:
- 肠道细菌 sp. 肠道细菌 sp. 在5毫米时通过GDH和10毫米时通过GS-GOGAT同化了B12氨.
- 用B12注射小麦显著增加了苗木干重,积和根球土壤.
- B12注射增强了根酶活动 (GDH,SOD,CAT,POD),但降低了GS,GOGAT和氨同化基因表达.
- 该细菌与小麦根建立了氨和氨基酸交换,提高了抗氧化能力.
结论:
- 肠道细菌 sp. 肠道细菌 sp. 维生素B12是一种有前途的促进植物生长的草根细菌 (PGPR).
- 它增强了小麦的生长,吸收和土壤固定.
- 细菌的益处与氨-氨基酸交换和改善根的抗氧化防御有关.
相关概念视频
Overview of Nitrogen Metabolism
7.8K
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...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.8K
The Roles of Bacteria and Fungi in Plant Nutrition
34.9K
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.
34.9K
The Nitrogen Cycle
51.5K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
51.5K
Overview of Metabolism
29.4K
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...
29.4K
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
Key Elements for Plant Nutrition
18.6K
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...
18.6K


