Water flow promotes nutrient release and microbial community assembly during Hydrilla verticillata decomposition

Lv, Xin; Zhang, Songhe; Zhang, Lisha; Guo, Shaozhuang; Ma, Yu; Zhou, Tiantian

doi:10.1016/j.jclepro.2023.139464

Journal of Cleaner Production

2023

DOI: 10.1016/j.jclepro.2023.139464

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Water flow promotes nutrient release and microbial community assembly during Hydrilla verticillata decomposition

Xin Lv,

Songhe Zhang,

Lisha Zhang

et al.

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Cited by 7 publications

References 49 publications

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Chlormequat inhibits Vallisneria natans growth and shapes the epiphytic biofilm microbial community

Ma,

Ai,

et al. 2024

Water Environment Research

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Submerged macrophytes can overgrow and negatively affect freshwater ecosystems. This study aimed to investigate the use of chlormequat (CQ) to regulate submerged Vallisneria natans growth as well as its impact on the microbial community of epiphytic biofilms. V. natans height under CQ dosages of 20, 100, and 200 mg/L decreased within 21 days by 12.57%, 30.07%, and 44.62%, respectively, while chlorophyll content increased by 1.94%, 20.39%, and 38.83%. At 100 mg/L, CQ reduced the diversity of bacteria in the biofilm attached to V. natans leaves but increased the diversity of the eukaryotic microbial community. CQ strongly inhibited Cyanobacteria; compared with the control group, the treatment group experienced a significant reduction from 36.54% to 2.61%. Treatment significantly inhibited Gastrotricha and Rotifera, two dominant phyla of eukaryotes in the leaf biofilm, reducing their relative abundances by 17.41% and 6.48%, respectively. CQ significantly changed the leaf biofilm microbial community correlation network. The treatment group exhibited lower modularity (2.012) compared with the control group (2.249); however, the central network of the treated group contained a higher number of microbial genera (13) than the control group (4), highlighting the significance of eukaryotic genera in the network. The results obtained from this study provide invaluable scientific context and technical understanding pertinent to the restoration of submerged macrophytes within aquatic ecosystems.Practitioner Points Chlormequat reduced the plant height but increased leaf chlorophyll content. Chlormequat reduced biofilm bacterial diversity but increased eukaryotic diversity. Chlormequat affected the bacterial‐fungal association networks in biofilms.

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Chlormequat inhibits Vallisneria natans growth and shapes the epiphytic biofilm microbial community

Ma,

Ai,

et al. 2024

Water Environment Research

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Interactions between SDBS and Hydrilla verticillata − epiphytic biofilm in wetland receiving STPs effluents: Nutrients removal and epiphytic microbial assembly

Lv,

Zhang,

Guo

et al. 2025

Bioresource Technology

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Ecological role of reed belts in lakeside zone: Impacts on nutrient retention and bacterial community assembly during Hydrilla verticillata decomposition

Luo,

Wang,

Zhang

et al. 2024

Journal of Environmental Management

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Water flow promotes nutrient release and microbial community assembly during Hydrilla verticillata decomposition

Cited by 7 publications

References 49 publications

Chlormequat inhibits Vallisneria natans growth and shapes the epiphytic biofilm microbial community

Chlormequat inhibits Vallisneria natans growth and shapes the epiphytic biofilm microbial community

Interactions between SDBS and Hydrilla verticillata − epiphytic biofilm in wetland receiving STPs effluents: Nutrients removal and epiphytic microbial assembly

Ecological role of reed belts in lakeside zone: Impacts on nutrient retention and bacterial community assembly during Hydrilla verticillata decomposition

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