通过自然水蒸发利用水电能增长的电自otrophic 微生物
Guoping Ren1, Jie Ye1, Qichang Hu1
1Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China.
Nature communications
|June 11, 2024
概括
微生物生物膜现在可以使用蒸发产生的水电能来生长. 这项研究表明,细菌可以利用这些电子,在能源有限的环境中提供生存潜力.
科学领域:
- 微生物学 微生物学
- 生物能源学 生物能源学
- 环境科学 环境科学
背景情况:
- 设备上的微生物生物膜可以从水蒸发中产生水电能.
- 使用这种水电能来推动微生物生长的方法以前没有被研究过.
研究的目的:
- 探索水电能作为微生物生长的直接能源的潜力.
- 为了研究微生物获得能量的细胞外电子吸收机制.
主要方法:
- 在基于生物膜的水电装置中利用电自营菌,特别是Rhodopseudomonas palustris.
- 通过细胞外电子吸收监测细菌生长和能量利用.
- 研究了碳固定和酸盐减少在支持增长中的作用.
主要成果:
- 证明Rhodopseudomonas palustris可以直接使用蒸发诱导的水电电子在生物膜内生长.
- 在另外两种电自转型细菌物种中证实了类似的能力.
- 观察到大量依赖于碳固定加上酸盐减少的能源利用.
结论:
- 水电能可以通过细胞外电子吸收直接被电自otrophic 细菌用于生长.
- 虽然能量转换效率较低,但水电能可以支持微生物在能源稀缺环境中的生存.
- 生物膜和蒸发的无处不在表明水电能在自然生态系统中的潜在作用.
相关概念视频
Bioremediation
18.2K
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.
18.2K
Electrolysis
26.3K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.3K
Voltaic/Galvanic Cells
57.1K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
57.1K
Batteries and Fuel Cells
27.3K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.3K
What is Photosynthesis?
99.0K
Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
99.0K


