| 引用本文: | 赵 忠,滕 飞,李卫平,等.包头南海湖不同湖区春季沉积物细菌群落结构[J].灌溉排水学报,2019,38(6):99-104. |
| ,et al.包头南海湖不同湖区春季沉积物细菌群落结构[J].灌溉排水学报,2019,38(6):99-104. |
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| 摘要: |
| 【目的】探究包头南海湖不同功能区域春季沉积物细菌群落多样性。【方法】采用高通量测序技术对进水口区、旅游开发区、湖心区和水草区共4个采样点表层沉积物细菌进行测定。【结果】不同区域物种丰富度和均匀度表现为水草区＞进水口区＞湖心区＞旅游开发区。从门水平来看，沉积物细菌主要为变形菌门(Proteobacteria)、绿弯菌门(Chloroflexi)、拟杆菌门(Bacteroidetes)、酸杆菌门(Acidobacteria)和蓝藻门(Cyanobacteria)等；从属水平分析，优势类群集中在硫杆菌属（Thiobacillus）、norank-f-anaerolineaceae。对沉积物细菌群落与环境因子做相关性分析，TN、TP、TOC对沉积物细菌群落结构影响较大。【结论】Thiobacillus在南海湖春季沉积物中广泛存在，其在地球生化循环中发挥着重要作用，而且极有可能诱发黑臭水体出现，应在以后研究中得到更多关注，并控制TN、TP以及TOC量，为预防南海湖黑臭水体的发生提供理论依据和基础数据。 |
| 关键词: 细菌； 群落结构； 高通量测序； 南海湖； 硫杆菌属 |
| DOI：doi：10.13522/j.cnki.ggps.20180422 |
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| Spatial Variation of the Sediment Microbial Communities in Baotou Nanhai Lake in Spring |
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ZHAO Zhong, TENG Fei, LI Weiping, YU Linghong, QI Lu, YANG Wenhuan , ZHANG Yuan
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1.Yichang Irrigation District Administration, Inner Mongolia Hetao Irrigation District Management Administration, Bayannaoer 015000, China; 2. The Colloge of Environment & Energy Resources, Inner Mongola University of Science & Technology, Baotou 014010, China
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| Abstract: |
| 【Objective】 Microbes and their community structure play an key role in aquatic ecosystems and this paper analyzed the spatial variation of the sediment microbial community in Baotou Nanhai Lake in spring.【Method】 Sediment samples were taken from deposit surface at four sites: the lake inlet, recreational area, lake center and plant-growing area. The microbial community in each sample was analyzed using the high-throughput sequencing approach.【Result】 The plant-growing area had the highest species richness and evenness, followed by the lake inlet area and the lake center. At phyla level, Proteobacteria, Chloroflexi, Bacteroidetes, Acidobacteria and Cyanobacteria were dominant; and Thiobacillus, unclassified-p-Chloroflexi were the major genus. Correlation analysis revealed that TN,TP and TOC had a great impact on structure of the microbial community.【Conclusion】Thiobacillus was widely found and played an important role in biogeochemical processes in spring within the sediments at the Nanhai Lake; It could lead to black and odorous water. Management of TN,TP and TOC should be improved as they mediate the biochemical reactions within the sediment. |
| Key words: Microbes; microbial community structure; high-throughput sequencing; Nanhai Lake; Thiobacillus |
