树叶球初始化通过微生物死体循环回收促进了植物的获取
Johanna Pausch1, Maire Holz2, Biao Zhu3
1Agroecology, BayCEER, University of Bayreuth, Bayreuth, Bayern, Germany.
Plant, cell & environment
|February 19, 2024
概括
根球原料效应 (RPE) 通过增加微生物死体的分解来增强植物的获取. 这项研究表明,RPE可以增加的吸收,特别是在地表和地底碳输入增加时.
科学领域:
- 土壤科学 土壤科学
- 植物营养 植物营养
- 微生物生态学 微生物生态学
背景情况:
- 对于植物来说,的可用性至关重要,并受到根系中根系微生物相互作用的影响.
- 根球原始化效应 (RPE) 涉及根排泄物刺激土壤有机物 (SOM) 分解.
- 微生物死体是有机结合土壤的重要来源,但其通过RPE的回收利用尚未得到充分研究.
研究的目的:
- 调查RPE在调节微生物死体周转和植物获中的作用.
- 评估根茎沉积产生的碳输入如何影响土壤表层和土壤下层的RPE.
- 了解树根球碳输入对植物吸收的功能重要性.
主要方法:
- 使用自然丰富的N作为微生物死质- (死质-N) 的标记物.
- 来自各种植物物种和土壤类型 (地表和地底) 的连续CO2标签实验的综合数据.
- 通过测量种植和未种植土壤之间的SOM分解差异来量化RPE.
主要成果:
- 植物的摄入量随着RPE的增加而增加.
- 植物芽和根中的N丰富与RPE正相关,表明增强了死体-N周转率.
- 在上层土壤中,RPE显示和与碳输入的增加,而在地下,RPE与碳输入的线性增加.
结论:
- 根球原料效应在功能上对增强植物吸收具有重要意义.
- 由RPE驱动的死体循环增加促进了植物更大的吸收.
- 根源衍生的碳输入对表土和地下的RPE产生差异性调节,影响循环.
更多相关视频
09:17Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores
Published on: March 26, 2019
12.1K
10:16Design and Operation of a Continuous 13C and 15N Labeling Chamber for Uniform or Differential, Metabolic and Structural, Plant Isotope Labeling
Published on: January 16, 2014
22.0K
相关概念视频
The Roles of Bacteria and Fungi in Plant Nutrition
35.4K
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.
35.4K
Overview of Nitrogen Metabolism
7.9K
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...
7.9K
The Nitrogen Cycle
52.1K
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...
52.1K
Epiphytes, Parasites, and Carnivores
13.0K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
13.0K
Key Elements for Plant Nutrition
18.7K
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...
18.7K
Bioremediation
18.4K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.4K
