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Dynamics of Bacterial and Fungal Communities during the Outbreak and Decline of an Algal Bloom in a Drinking Water Reservoir

Author

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  • Haihan Zhang

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Jingyu Jia

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Shengnan Chen

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Tinglin Huang

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Yue Wang

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Zhenfang Zhao

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Ji Feng

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Huiyan Hao

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Sulin Li

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China
    Institute of Environmental Microbial Technology, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

  • Xinxin Ma

    (School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi Province, China)

Abstract

The microbial communities associated with algal blooms play a pivotal role in organic carbon, nitrogen and phosphorus cycling in freshwater ecosystems. However, there have been few studies focused on unveiling the dynamics of bacterial and fungal communities during the outbreak and decline of algal blooms in drinking water reservoirs. To address this issue, the compositions of bacterial and fungal communities were assessed in the Zhoucun drinking water reservoir using 16S rRNA and internal transcribed spacer (ITS) gene Illumina MiSeq sequencing techniques. The results showed the algal bloom was dominated by Synechococcus, Microcystis, and Prochlorothrix. The bloom was characterized by a steady decrease of total phosphorus (TP) from the outbreak to the decline period (p < 0.05) while Fe concentration increased sharply during the decline period (p < 0.05). The highest algal biomass and cell concentrations observed during the bloom were 51.7 mg/L and 1.9×108 cell/L, respectively. The cell concentration was positively correlated with CODMn (r = 0.89, p = 0.02). Illumina Miseq sequencing showed that algal bloom altered the water bacterial and fungal community structure. During the bloom, the dominant bacterial genus were Acinetobacter sp., Limnobacter sp., Synechococcus sp., and Roseomonas sp. The relative size of the fungal community also changed with algal bloom and its composition mainly contained Ascomycota, Basidiomycota and Chytridiomycota. Heat map profiling indicated that algal bloom had a more consistent effect upon fungal communities at genus level. Redundancy analysis (RDA) also demonstrated that the structure of water bacterial communities was significantly correlated to conductivity and ammonia nitrogen. Meanwhile, water temperature, Fe and ammonia nitrogen drive the dynamics of water fungal communities. The results from this work suggested that water bacterial and fungal communities changed significantly during the outbreak and decline of algal bloom in Zhoucun drinking water reservoir. Our study highlights the potential role of microbial diversity as a driving force for the algal bloom and biogeochemical cycling of reservoir ecology.

Suggested Citation

  • Haihan Zhang & Jingyu Jia & Shengnan Chen & Tinglin Huang & Yue Wang & Zhenfang Zhao & Ji Feng & Huiyan Hao & Sulin Li & Xinxin Ma, 2018. "Dynamics of Bacterial and Fungal Communities during the Outbreak and Decline of an Algal Bloom in a Drinking Water Reservoir," IJERPH, MDPI, vol. 15(2), pages 1-20, February.
  • Handle: RePEc:gam:jijerp:v:15:y:2018:i:2:p:361-:d:132372
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    References listed on IDEAS

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    1. Jian-Chao Shi & Ting-Lin Huang & Gang Wen & Fei Liu & Xiao-Peng Qiu & Bao-Shan Wang, 2016. "The Variation Characteristic of Sulfides and VOSc in a Source Water Reservoir and Its Control Using a Water-Lifting Aerator," IJERPH, MDPI, vol. 13(4), pages 1-13, April.
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    Cited by:

    1. Junzhi Zhang & Xiao He & Huixin Zhang & Yu Liao & Qi Wang & Luwei Li & Jianwei Yu, 2022. "Factors Driving Microbial Community Dynamics and Potential Health Effects of Bacterial Pathogen on Landscape Lakes with Reclaimed Water Replenishment in Beijing, PR China," IJERPH, MDPI, vol. 19(9), pages 1-12, April.
    2. Miaomiao Yan & Shengnan Chen & Tinglin Huang & Baoqin Li & Nan Li & Kaiwen Liu & Rongrong Zong & Yutian Miao & Xin Huang, 2020. "Community Compositions of Phytoplankton and Eukaryotes during the Mixing Periods of a Drinking Water Reservoir: Dynamics and Interactions," IJERPH, MDPI, vol. 17(4), pages 1-28, February.

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