相关实验视频
Updated: Jul 15, 2025

07:26
Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands
Published on: January 31, 2025
351
浮动植物通过创造有利于甲氧化息地来减少湿地中的甲流量
Fuwei Wang1, Songhe Zhang1, Xiuren Hu1
1Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.
Journal of environmental sciences (China)
|October 1, 2023
概括
浮动植物,如艾希霍尼亚,显著减少了湿地释放的甲 (CH4). 这些植物增强甲氧化,有助于净水和碳中和目标.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生态生态学 生态生态学
背景情况:
- 湿地是大气中甲 (CH4) 的重要来源.
- 浮动植物是湿地的组成部分,可能会影响甲释放.
- 之前关于浮动工厂对甲流量影响的研究是有限的.
研究的目的:
- 为了研究三种浮动植物 (Eichhornia crassipes,Hydrocharis dubia,Trap natans) 对模拟湿地的甲流的影响.
- 分析甲流和水的物理化学性质,甲氧化潜力和根球细菌群落之间的关系.
- 评估浮动工厂恢复的潜力,以减轻湿地甲排放.
主要方法:
- 模拟湿地实验与浮动植物和对照组.
- 在水-大气界面测量甲流.
- 对覆盖水的物理化学性质的分析.
- 根基甲氧化潜力的确定.
- 根球细菌群落的特征和甲类植物的丰富性 (pmoA基因).
主要成果:
- E. crassipes,H. dubia和T. natans分别抑制了甲流量的84.31%-97.31%,4.98%-88.91%和43.62%-92.51%. 这就是为什么我们可以说,它们可以抑制甲流量.
- 甲流与水中的营养度负相关,与根空气基因相对正相关.
- E. crassipes 根的甲氧化潜力最高 (36.44%),I型甲类菌在细菌群体中占主导地位.
结论:
- 浮动植物显著减少湿地甲排放.
- 甲减少与根相关细菌增强的甲氧化有关.
- 浮动工厂的恢复提供了一种可行的水净化策略,通过减轻甲流量来实现碳中和.
相关概念视频
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Bioremediation
18.8K
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.
18.8K
Metabolism of Chemolithotrophs
33
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
33
Environmental Applications of Microorganisms
46
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
46
Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K
Overview of Metabolism
30.7K
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...
30.7K

