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Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes

Urban freshwater lakes play an indispensable role in maintaining the urban environment and are suffering great threats of eutrophication. Until now, little has been known about the seasonal bacterial communities of the surface water of adjacent freshwater urban lakes. This study reported the bacteri...

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Autores principales: Ji, Bin, Liu, Cheng, Liang, Jiechao, Wang, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8295879/
https://www.ncbi.nlm.nih.gov/pubmed/34209591
http://dx.doi.org/10.3390/ijerph18136950
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author Ji, Bin
Liu, Cheng
Liang, Jiechao
Wang, Jian
author_facet Ji, Bin
Liu, Cheng
Liang, Jiechao
Wang, Jian
author_sort Ji, Bin
collection PubMed
description Urban freshwater lakes play an indispensable role in maintaining the urban environment and are suffering great threats of eutrophication. Until now, little has been known about the seasonal bacterial communities of the surface water of adjacent freshwater urban lakes. This study reported the bacterial communities of three adjacent freshwater lakes (i.e., Tangxun Lake, Yezhi Lake and Nan Lake) during the alternation of seasons. Nan Lake had the best water quality among the three lakes as reflected by the bacterial eutrophic index (BEI), bacterial indicator (Luteolibacter) and functional prediction analysis. It was found that Alphaproteobacteria had the lowest abundance in summer and the highest abundance in winter. Bacteroidetes had the lowest abundance in winter, while Planctomycetes had the highest abundance in summer. N/P ratio appeared to have some relationships with eutrophication. Tangxun Lake and Nan Lake with higher average N/P ratios (e.g., N/P = 20) tended to have a higher BEI in summer at a water temperature of 27 °C, while Yezhi Lake with a relatively lower average N/P ratio (e.g., N/P = 14) tended to have a higher BEI in spring and autumn at a water temperature of 9–20 °C. BEI and water temperature were identified as the key parameters in determining the bacterial communities of lake water. Phosphorus seemed to have slightly more impact on the bacterial communities than nitrogen. It is expected that this study will help to gain more knowledge on urban lake eutrophication.
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spelling pubmed-82958792021-07-23 Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes Ji, Bin Liu, Cheng Liang, Jiechao Wang, Jian Int J Environ Res Public Health Case Report Urban freshwater lakes play an indispensable role in maintaining the urban environment and are suffering great threats of eutrophication. Until now, little has been known about the seasonal bacterial communities of the surface water of adjacent freshwater urban lakes. This study reported the bacterial communities of three adjacent freshwater lakes (i.e., Tangxun Lake, Yezhi Lake and Nan Lake) during the alternation of seasons. Nan Lake had the best water quality among the three lakes as reflected by the bacterial eutrophic index (BEI), bacterial indicator (Luteolibacter) and functional prediction analysis. It was found that Alphaproteobacteria had the lowest abundance in summer and the highest abundance in winter. Bacteroidetes had the lowest abundance in winter, while Planctomycetes had the highest abundance in summer. N/P ratio appeared to have some relationships with eutrophication. Tangxun Lake and Nan Lake with higher average N/P ratios (e.g., N/P = 20) tended to have a higher BEI in summer at a water temperature of 27 °C, while Yezhi Lake with a relatively lower average N/P ratio (e.g., N/P = 14) tended to have a higher BEI in spring and autumn at a water temperature of 9–20 °C. BEI and water temperature were identified as the key parameters in determining the bacterial communities of lake water. Phosphorus seemed to have slightly more impact on the bacterial communities than nitrogen. It is expected that this study will help to gain more knowledge on urban lake eutrophication. MDPI 2021-06-29 /pmc/articles/PMC8295879/ /pubmed/34209591 http://dx.doi.org/10.3390/ijerph18136950 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Case Report
Ji, Bin
Liu, Cheng
Liang, Jiechao
Wang, Jian
Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title_full Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title_fullStr Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title_full_unstemmed Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title_short Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes
title_sort seasonal succession of bacterial communities in three eutrophic freshwater lakes
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8295879/
https://www.ncbi.nlm.nih.gov/pubmed/34209591
http://dx.doi.org/10.3390/ijerph18136950
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