相关实验视频
Updated: Jul 10, 2026

07:44
Analysis of Fatty Acid Content and Composition in Microalgae
Published on: October 1, 2013
59.8K
在环境相关的PFAS度存在时,热浪如何影响微藻类:代谢转变和挑战
Jieming Liao1, Yonglong Lu2, Yinyue Liu1
1State Key Laboratory of Marine Environmental Science and Key Laboratory of the Ministry of Education for Coastal Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Fujian 361102, China.
Journal of hazardous materials
|December 5, 2024
概括
暴露在Per-和多基物质 (PFAS) 和热浪中会促进有害藻类繁殖的增长. 这种综合压力矛盾地增强了藻类,但加剧了氧化压力,改变了新陈代谢,影响了水生生态系统.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 微生物学 微生物学
背景情况:
- 和多基基物质 (PFAS) 是普遍存在的水生污染物.
- 对于PFAS对微藻 (如Microcystis aeruginosa) 的影响,尤其是在热浪期间,尚不清楚.
研究的目的:
- 在正常和热浪条件下研究环境相关的PFAS度对Microcystis aeruginosa的影响.
- 阐明微藻对PFAS和热应激联合的生理和代谢反应.
主要方法:
- 在环境相关度下,Microcystis aeruginosa暴露于PFAS.
- 模拟热浪条件. 模拟热浪条件.
- 分析生长,光合作用,色素含量,代谢物概况和抗氧化基因表达.
主要成果:
- 仅PFAS暴露就促进了Microcystis aeruginosa的生长和光合作用,通过增强代谢途径和抗氧化防御.
- 仅仅暴露于热浪就抑制了藻类的生长.
- 同时暴露于PFAS和热浪矛盾地增强了藻类生长,光合作用色素和特定的代谢途径,但也加剧了氧化应激.
结论:
- 结合PFAS和热浪压力可以矛盾地促进有害的藻类繁殖.
- 热浪显著影响PFAS吸收和藻类对污染物的反应.
- 研究结果提供了关于水生生态系统对气候变化和化学污染的脆弱性的见解.
相关概念视频
Green Algae
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
Other Algae
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
Marine Microbial Ecology
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...

