Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian

The microbial community plays an important role in the biogeochemical cycles in water aquatic ecosystems, and it is regulated by environmental variables. However, the relationships between microbial keystone taxa and water variables, which play a pivotal role in aquatic ecosystems, has not been clar...

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Main Authors: Weihong Huang, Shuantong Li, Saisai Li, Hendrikus J. Laanbroek, Qiufang Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-04-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2023.1151768/full
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author Weihong Huang
Shuantong Li
Saisai Li
Hendrikus J. Laanbroek
Hendrikus J. Laanbroek
Qiufang Zhang
author_facet Weihong Huang
Shuantong Li
Saisai Li
Hendrikus J. Laanbroek
Hendrikus J. Laanbroek
Qiufang Zhang
author_sort Weihong Huang
collection DOAJ
description The microbial community plays an important role in the biogeochemical cycles in water aquatic ecosystems, and it is regulated by environmental variables. However, the relationships between microbial keystone taxa and water variables, which play a pivotal role in aquatic ecosystems, has not been clarified in detail. We analyzed the seasonal variation in microbial communities and co-occurrence network in the representative areas taking Lake Dongqian as an example. Both pro- and eukaryotic community compositions were more affected by seasons than by sites, and the prokaryotes were more strongly impacted by seasons than the eukaryotes. Total nitrogen, pH, temperature, chemical oxygen demand, dissolved oxygen and chlorophyll a significantly affected the prokaryotic community, while the eukaryotic community was significantly influenced by total nitrogen, ammonia, pH, temperature and dissolved oxygen. The eukaryotic network was more complex than that of prokaryotes, whereas the number of eukaryotic keystone taxa was less than that of prokaryotes. The prokaryotic keystone taxa belonged mainly to Alphaproteobacteria, Betaproteobacteria, Actinobacteria and Bacteroidetes. It is noteworthy that some of the keystone taxa involved in nitrogen cycling are significantly related to total nitrogen, ammonia, temperature and chlorophyll a, including Polaromonas, Albidiferax, SM1A02 and Leptolyngbya so on. And the eukaryotic keystone taxa were found in Ascomycota, Choanoflagellida and Heterophryidae. The mutualistic pattern between pro- and eukaryotes was more evident than the competitive pattern. Therefore, it suggests that keystone taxa could be as bio-indicators of aquatic ecosystems.
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spelling doaj.art-3eb3578adf5a4835899fe235d9c084fa2023-04-26T06:30:04ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-04-011410.3389/fmicb.2023.11517681151768Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake DongqianWeihong Huang0Shuantong Li1Saisai Li2Hendrikus J. Laanbroek3Hendrikus J. Laanbroek4Qiufang Zhang5College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, ChinaCollege of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, ChinaZhejiang Wanli University, Ningbo, ChinaDepartment of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, NetherlandsEcology and Biodiversity Group, Department of Biology, Utrecht University, Utrecht, NetherlandsCollege of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, ChinaThe microbial community plays an important role in the biogeochemical cycles in water aquatic ecosystems, and it is regulated by environmental variables. However, the relationships between microbial keystone taxa and water variables, which play a pivotal role in aquatic ecosystems, has not been clarified in detail. We analyzed the seasonal variation in microbial communities and co-occurrence network in the representative areas taking Lake Dongqian as an example. Both pro- and eukaryotic community compositions were more affected by seasons than by sites, and the prokaryotes were more strongly impacted by seasons than the eukaryotes. Total nitrogen, pH, temperature, chemical oxygen demand, dissolved oxygen and chlorophyll a significantly affected the prokaryotic community, while the eukaryotic community was significantly influenced by total nitrogen, ammonia, pH, temperature and dissolved oxygen. The eukaryotic network was more complex than that of prokaryotes, whereas the number of eukaryotic keystone taxa was less than that of prokaryotes. The prokaryotic keystone taxa belonged mainly to Alphaproteobacteria, Betaproteobacteria, Actinobacteria and Bacteroidetes. It is noteworthy that some of the keystone taxa involved in nitrogen cycling are significantly related to total nitrogen, ammonia, temperature and chlorophyll a, including Polaromonas, Albidiferax, SM1A02 and Leptolyngbya so on. And the eukaryotic keystone taxa were found in Ascomycota, Choanoflagellida and Heterophryidae. The mutualistic pattern between pro- and eukaryotes was more evident than the competitive pattern. Therefore, it suggests that keystone taxa could be as bio-indicators of aquatic ecosystems.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1151768/fullbio-indicatorsLake Dongqianmicrobial keystone taxa16S rRNA gene18S rRNA genespatial–temporal distribution
spellingShingle Weihong Huang
Shuantong Li
Saisai Li
Hendrikus J. Laanbroek
Hendrikus J. Laanbroek
Qiufang Zhang
Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
Frontiers in Microbiology
bio-indicators
Lake Dongqian
microbial keystone taxa
16S rRNA gene
18S rRNA gene
spatial–temporal distribution
title Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
title_full Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
title_fullStr Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
title_full_unstemmed Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
title_short Pro- and eukaryotic keystone taxa as potential bio-indicators for the water quality of subtropical Lake Dongqian
title_sort pro and eukaryotic keystone taxa as potential bio indicators for the water quality of subtropical lake dongqian
topic bio-indicators
Lake Dongqian
microbial keystone taxa
16S rRNA gene
18S rRNA gene
spatial–temporal distribution
url https://www.frontiersin.org/articles/10.3389/fmicb.2023.1151768/full
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