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Article

Host Dependence of Zooplankton-Associated Microbes and Their Ecological Implications in Freshwater Lakes

1
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Academic Editor: Marina Marcella Manca
Water 2021, 13(21), 2949; https://doi.org/10.3390/w13212949
Received: 19 August 2021 / Revised: 14 October 2021 / Accepted: 14 October 2021 / Published: 20 October 2021
Zooplankton is colonized by quite different microbes compared with free-living and particle-associated bacteria, serving as a non-negligible niche of bacteria in aquatic ecosystems. Yet detailed analysis of these bacterial groups is still less known, especially in freshwater lakes. To widen our knowledge of host-microbe interaction and bacterial ecosystem functions, we chose two specific populations of zooplankton, i.e., cladoceran Moina and copepod Calanoids, as hosts from five natural lakes, and illustrated detailed features of their associated bacteria. Through 16S rRNA gene sequencing, we found microbes colonized on Calanoids presented significantly higher α-diversity, stronger bacterial interaction and metabolic function potentials than for Moina. It was also notable that zooplankton-associated bacteria showed a high potential of fatty acid metabolism, which is beneficial for host’s development. Moreover, we found that zooplankton-associated microbes may exert profound effects on biogeochemical cycles in freshwater lakes, since several bacterial members able to participate in carbon and nitrogen cycles were found abundant. Overall, our study expands current understanding of the host-microbe interaction and underlying ecological dynamics in freshwater ecosystem. View Full-Text
Keywords: freshwater lakes; zooplankton; host; bacteria; ecosystem function freshwater lakes; zooplankton; host; bacteria; ecosystem function
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MDPI and ACS Style

Wang, Q.; Hao, Z.; Ding, R.; Li, H.; Tang, X.; Chen, F. Host Dependence of Zooplankton-Associated Microbes and Their Ecological Implications in Freshwater Lakes. Water 2021, 13, 2949. https://doi.org/10.3390/w13212949

AMA Style

Wang Q, Hao Z, Ding R, Li H, Tang X, Chen F. Host Dependence of Zooplankton-Associated Microbes and Their Ecological Implications in Freshwater Lakes. Water. 2021; 13(21):2949. https://doi.org/10.3390/w13212949

Chicago/Turabian Style

Wang, Qianhong, Zheng Hao, Ruirui Ding, Huabing Li, Xiangming Tang, and Feizhou Chen. 2021. "Host Dependence of Zooplankton-Associated Microbes and Their Ecological Implications in Freshwater Lakes" Water 13, no. 21: 2949. https://doi.org/10.3390/w13212949

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