海洋毒素酸改变了沉积物中的循环
Zelong Li1, Jing Wang2, Hao Yue1
1Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, PR China.
Nature communications
|November 30, 2023
概括
多米酸 (DA) 是一种神经毒性藻类毒素,它通过改变微生物群落和限制关键的N去除过程,如脱和Anammox,来破坏沿海沉积物的循环. 这突显了DA在生态系统层面的影响.
科学领域:
- 海洋生态毒理学 海洋生态毒理学
- 环境微生物学 环境微生物学
- 生物地质化学生物地质化学
背景情况:
- 多米酸 (DA) 是一种全球分布的藻类毒素,具有显著的神经毒性.
- 人们越来越担心DA对海洋环境的生态影响.
研究的目的:
- 研究DA对沿海沉积物中气循环的影响.
- 了解DA影响微生物群落和生物地化学过程的机制.
主要方法:
- 对元基因组和代谢组数据的综合分析.
- 微生态学理论对微生物继承的应用.
- 功能性基因丰度和电子供应的量化.
主要成果:
- 通过改变功能性基因丰度和电子供应,DA起到压力作用,改变 (N) 循环.
- DA增加了微生物继承中的决定性组合,转移了,改变了N循环.
- 对于N去除至关重要的脱和Anammox被DA显著抑制.
结论:
- 在沿海沉积物中,DA会产生生态系统层面的影响.
- 在N循环中的变化表明了相关元素循环的潜在修改.
- 进一步评估DA的级联生态影响是有必要的.
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