有证据表明,的输入影响了土壤的净化,通过调解盐沼植物的根排泄物
Chunyu Zhao1, Songlin Liu2, Xiaoli Zhang3
1College of Ecology, Resources and Environment, Dezhou University, Dezhou 253023, China.
The Science of the total environment
|July 1, 2024
概括
盐沼根排泄物通过刺激微生物活动来增强的去除. 不同的形式影响根排泄,影响沿海生态系统中的净化潜力和细菌功能.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生物地质化学生物地质化学
背景情况:
- 盐沼对于沿海生态系统的健康至关重要,它可以净化以防止水生生物受到伤害和水质恶化.
- 盐沼植物的根排泄物被假定是转化的关键调节者,但经验数据很少.
研究的目的:
- 为了量化盐沼根排泄物对的净化.
- 了解转化的生物地质化学途径.
- 研究不同形式的对根排泄和微生物活动的影响.
主要方法:
- 实验室化实验是使用Phragmites australis进行的.
- 量化的根排泄物 (总酸,氨基酸,糖,有机碳,) 和土壤净化率.
- 评估了与不同添加剂 (酸盐,,尿素) 下的转化相关的酶活动和功能基因.
主要成果:
- 酸盐和尿素刺激了糖,氨基酸和有机碳的排泄,增强了净化潜力.
- 添加增加了酸,氨基酸和的排泄,但由于毒性,没有显著提高脱率.
- 尿素添加增强了尿酶和蛋白酶活动,促进了无氧氧化.
结论:
- 外源的应用通过增加根排泄物释放和刺激转化微生物活动来增强盐沼的去除.
- 根排泄物在沼泽生态系统中调节循环和净化方面发挥着至关重要的作用.
- 了解这些机制是管理沿海水质和生态系统健康的关键.
相关概念视频
02:02Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
01:20Overview 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
01:49The Nitrogen Cycle
51.9K
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...
51.9K
02:35Key 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
02:11The Roles of Bacteria and Fungi in Plant Nutrition
35.2K
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.
35.2K
01:06Primary Production
23.6K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.6K