不同的螺旋藻菌株对水性 (VI) 的生物吸收和生物还原
Guoqing Meng1, Jinghua Liu1,2, Jingwen Ma1
1College of Agriculture and Bioengineering, Heze University, Heze 274015, China.
FEMS microbiology letters
|July 21, 2023
概括
某些螺旋藻菌株显示出从废水中提取优异的 (VI). 菌株YCX2643和CLQ1848表现出高的生物吸收和生物还原效率,使它们成为重金属污染控制的有效生物吸收剂.
科学领域:
- 环境微生物学 环境微生物学
- 生物修复是一种生物修复.
- 水处理 处理水的方法
背景情况:
- 螺旋藻是一种可行的微生物,用于处理污染了重金属离子的工业废水.
- 它的种植,收获,功能群和生物还原性活动有利于重金属吸收.
- 然而,生物吸收和生物还原能力在不同的螺旋菌株之间有很大差异.
研究的目的:
- 调查生理特征,以识别不同的螺旋菌株.
- 评估和比较各种螺旋菌株的 (VI) 吸附能力.
- 为了阐明螺旋藻细胞中 (VI) 结合和生物转化的机制.
主要方法:
- 不同的螺旋菌株的生理特征.
- 评价 (VI) 的吸附能力.
- 福里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 用于机制分析.
主要成果:
- 与其他菌株相比,螺旋菌株YCX2643和CLQ1848的 (VI) 除去效率 (86.5%和83.7%) 显著更高.
- FTIR和SEM分析表明,各种细胞组件有助于YCX2643和CLQ1848.8的高结合亲和力.
- 这些成分促进了水性 (VI) 的增强生物吸收和生物还原.
结论:
- 螺旋藻菌株YCX2643和CLQ1848是高效的生物吸收剂,可以从废水中去除 (VI).
- 细胞成分的变化解释了不同的生物吸收和生物还原能力.
- 这些精选的螺旋藻菌株显示出工业重金属污染物修复的巨大潜力.
更多相关视频
08:29Au-Interaction of Slp1 Polymers and Monolayer from Lysinibacillus sphaericus JG-B53 - QCM-D, ICP-MS and AFM as Tools for Biomolecule-metal Studies
Published on: January 19, 2016
11.4K
06:52Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria
Published on: December 19, 2017
7.9K
相关概念视频
00:46Bioremediation
19.0K
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.
19.0K
01:28Microbial Nutrition
89
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
89
01:20Sulfur Assimilation
45
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
45
01:15Metabolism of Chemolithotrophs
48
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.
48