Light-Dominated Selection Shaping Filamentous Cyanobacterial Assemblages Drives Odor Problem in a Drinking Water Reservoir

Light shapes their niche
Pseudanabaena reigns
Odors subside slow
Cyanobacteria
Filamentous cyanobacteria
Niche differentiation
MIB odor problem
Drinking water safety

npj Clean Water: Ming Su, Yiping Zhu, Tom Andersen, Xianyun Wang, Zhiyong Yu, Jinping Lu, Yichao Song, Tengxin Cao, Jianwei Yu, Yu Zhang, and Min Yang. Light-Dominated Selection Shaping Filamentous Cyanobacterial Assemblages Drives Odor Problem in a Drinking Water Reservoir. npj Clean Water 2022;5:37. 10.1038/s41545-022-00181-2.

作者
单位

朱 宜平

Shanghai Chengtou Raw Water Co. Ltd

Tom Andersen

Department of Biosciences, University of Oslo, Norway

王 先云

National Engineering Research Center of China (South) for Urban Water, Shanghai, China

于 志勇

陆 金平

宋 一超

Shanghai Chengtou Raw Water Co. Ltd

曹 腾心

于 建伟

张 昱

发布于

2022年08月23日

Doi

摘要

丝状蓝藻在生态位上有显著重叠,但其群落演替的因果机制尚不明确。这具有实际意义,因为多个丝状蓝藻属是主要的土霉味物质2-甲基异莰醇(MIB)的生产者,导致饮用水中出现异味问题。本研究探讨了饮用水水库中两种丝状蓝藻——产MIB的Planktothrix属和不产MIB的Pseudanabaena属——的关系。我们基于监测数据集识别了它们的生态位特征,并结合培养实验,开发了基于生态位的模型来阐明这一过程。研究结果显示,Pseudanabaena的最适光需求(1.56 mol m⁻² d⁻¹)低于Planktothrix(3.67 mol m⁻² d⁻¹);这种光生态位分化导致了Planktothrix(2013年)被Pseudanabaena(2015年)取代,同时MIB浓度在2013至2015年间显著下降。本研究表明,光是驱动丝状蓝藻演替的主要力量,细微的生态位分化可能在塑造丝状蓝藻群落中起重要作用,从而导致饮用水水库中MIB异味问题的产生。

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引用

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@Article{su2022lightdominated,
    title       = {Light-dominated selection shaping filamentous cyanobacterial assemblages drives odor problem in a drinking water reservoir},
    author      = {Ming Su and Yiping Zhu and Tom Andersen and Xianyun Wang and Zhiyong Yu and Jinping Lu and Yichao Song and Tengxin Cao and Jianwei Yu and Yu Zhang and Min Yang},
    year        = 2022,
    journal     = {npj Clean Water},
    publisher   = {Springer Science and Business Media {LLC}},
    volume      = 5,
    pages       = {37},
    url         = {https://doi.org/10.1038/s41545-022-00181-2},
    doi         = {10.1038/s41545-022-00181-2},
    number      = 1
}