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Light as a possible regulator of MIB-producing Planktothrix in source water reservoir, mechanism and in-situ verification

Planktothrix
2-methylisoborneol (MIB)
Light regulation
Source water management
Cyanobacteria
作者 / Authors
Authors
Affiliations

Zeyu Jia

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Ming Su

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Tingting Liu

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Qingyuan Guo

Yancheng Institute of Technology

Qi Wang

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Michael Burch

Department of Ecology and Evolutionary Biology, School of Biological Science, The University of Adelaide

Jianwei Yu

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Min Yang

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Published

Sep 1, 2019

Doi

10.1016/j.hal.2019.101658

Abstract

The musty/earthy odor-causing compound 2-methylisoborneol (MIB) is frequently associated with subsurface-living cyanobacteria like Planktothrix in source water. This study explores the effects of light availability on MIB production and the growth of Planktothrix in laboratory and in-situ settings. The results demonstrated that Planktothrix requires a minimum light intensity of 4.4 μmol photons m-2 s-1 to grow and that reducing light availability can effectively restrict its growth. Field experiments in Miyun Reservoir confirmed the findings, with the lowest MIB levels observed at depths where light intensity was below the threshold. This research highlights the potential of managing underwater light availability as a strategy to control MIB-producing cyanobacteria in source water systems.

Introduction by AI

Abstract

The musty/earthy odor-causing compound 2-methylisoborneol (MIB) is frequently associated with subsurface-living cyanobacteria like Planktothrix in source water. This study explores the effects of light availability on MIB production and the growth of Planktothrix in laboratory and in-situ settings. The results demonstrated that Planktothrix requires a minimum light intensity of 4.4 μmol photons m-2 s-1 to grow and that reducing light availability can effectively restrict its growth. Field experiments in Miyun Reservoir confirmed the findings, with the lowest MIB levels observed at depths where light intensity was below the threshold. This research highlights the potential of managing underwater light availability as a strategy to control MIB-producing cyanobacteria in source water systems.

Reference

@Article{jia2019light,
    title       = {Light as a regulator of {MIB}-producing *Planktothrix* in source water: mechanism and in-situ verification},
    author      = {Zeyu Jia and Ming Su and Tingting Liu and Qingyuan Guo and Qi Wang and Michael Burch and Jianwei Yu and Min Yang},
    year        = 2019,
    journal     = {Harmful Algae},
    publisher   = {Elsevier {BV}},
    volume      = 88,
    pages       = {101658},
    url         = {https://doi.org/10.1016/j.hal.2019.101658},
    doi         = {10.1016/j.hal.2019.101658}
}