Diversity and Their Response to Environmental Factors of Prokaryotic Ultraplankton in Spring and Summer of Cihu Lake and Xiandao Lake in China

Cong Lan, Lili Sun, Yihan Hu, Yan Zhang, Jinjing Xu, Heng Ding, Rong Tang, Jianjun Hou (), Yuntao Li and Xiaodong Wu
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Cong Lan: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Lili Sun: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Yihan Hu: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Yan Zhang: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Jinjing Xu: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Heng Ding: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Rong Tang: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Jianjun Hou: Huangshi Key Laboratory of Lake Environmental Protection and Sustainable Resource Utilization, Hubei Normal University, Huangshi 435002, China
Yuntao Li: School of Food and Biological Engineering, Bengbu University, Bengbu 233030, China
Xiaodong Wu: College of Urban and Environmental Sciences, Hubei Normal University, Huangshi 435002, China

Sustainability, 2023, vol. 15, issue 15, 1-17

Abstract: Ultraplankton plays an important role in the biogeochemical cycles of aquatic ecosystems. Based on 16S rRNA gene sequencing technology, the community structure composition of prokaryotic ultraplankton and its relationship with environmental factors were analyzed. The results showed that Cihu Lake was experiencing eutrophication and that Xiandao Lake was in the process of changing from mesotrophic to oligotrophic conditions. Cihu Lake and Xiandao Lake were regulated primarily by nitrogen nutrients. Proteobacteria, Bacteroidota, Cyanobacteria, and Actinobacteriota were the major phyla of prokaryotic ultraplankton in both lakes. Among them, Cyanobacteria dominate in the summer in Cihu Lake, which can have seasonal cyanobacterial blooms. Seasonal variation significantly affects the diversity and community structure of prokaryotic ultraplankton in the lakes, with temperature and dissolved oxygen being the key environmental factors determining plankton community composition. The PICRUSt functional prediction analysis indicated a higher water purification and exogenous pollution remediation capacity of the microbial communities of Xiandao Lake, as well as in the spring samples of Cihu Lake. In this study, the diversity and spatial–temporal succession patterns of prokaryotic ultraplankton in Cihu Lake and Xiandao Lake were elucidated, providing a useful reference for the lake environmental protection and water eutrophication management in Cihu Lake and Xiandao Lake.

Keywords: Cihu Lake and Xiandao Lake; prokaryotic ultraplankton; 16S rRNA gene sequencing; plankton diversity; environmental factors (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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