Phylogenetic Processes and Key Driving Factors of Bacterial Communities in Jinze Reservoir

被引：0
|
作者：
Liu M.-K. [1 ]
Tong J. [2 ]
Zhu H.-F. [2 ]
Bai X.-H. [1 ]
机构：
[1] State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai
[2] Shanghai Municipal Water Supply Control & Monitoring Center, Shanghai
来源：
Bai, Xiao-Hui (xhbai@sjtu.edu.cn) | 1600年 / Science Press卷 / 41期
关键词：
Bacterial community; Ecological null model; Jinze Reservoir; Phylogeny; Random processes;
D O I：
10.13227/j.hjkx.202002207
中图分类号：
学科分类号：
摘要：
To investigate the ecological mechanisms of the bacterial response to human disturbance in micro-polluted water ecosystems, we studied the relationship between the environmental factors and bacterial community development in the incoming water and various areas of a reservoir based on an ecological null model. The results showed that the phylogenetic clustering of bacterial communities was more dispersed than expected (the single-sample t-test of SES.MNTD has a 95% lower confidence limit of 9.79). Temperature is an important environmental factor affecting community phylogeny. The relative importance of stochastic and deterministic processes in the bacterial community succession of different samples showed seasonal characteristics. The bacterial community succession in spring, summer, and autumn samples was dominated by random and deterministic processes. NH4+-N is the main environmental factor affecting the relative importance of random and deterministic processes. When the concentration of NH4+-N is 0.06-0.40 mg•L-1, the bacterial community succession is dominated by random processes; when the concentration is 0.40-0.80 mg•L-1, it is dominated by both random and deterministic processes. Dispersal limitation (61.68%) and heterogeneous selection (26.65%) played important roles in bacterial community changes at different sampling points in the study area. © 2020, Science Press. All right reserved.
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页码：4062 / 4068
页数：6
相关论文
共 25 条
  • [1] Yang H, Zhang G Z, Yang X N, Et al., Microbial community structure and diversity in cellar water by 16S rRNA high-throughput sequencing, Environmental Science, 38, 4, pp. 1704-1716, (2017)
  • [2] Newton R J, Jones S E, Eiler A, Et al., A guide to the natural history of freshwater lake bacteria, Microbiology and Molecular Biology Reviews, 75, 1, pp. 14-49, (2011)
  • [3] Yang H, Yang X N, Zhang G Z, Et al., Key bacteria for the microbial degradation of pollutants in cellar water, Environmental Science, 39, 10, pp. 4766-4777, (2018)
  • [4] Hu A Y, Li S, Zhang L P, Et al., Prokaryotic footprints in urban water ecosystems: a case study of urban landscape ponds in a coastal city, China, Environmental Pollution, 242, pp. 1729-1739, (2018)
  • [5] Stegen J C, Lin X J, Konopka A E, Et al., Stochastic and deterministic assembly processes in subsurface microbial communities, The ISME Journal, 6, 9, pp. 1653-1664, (2012)
  • [6] Shi Y, Li Y T, Xiang X J, Et al., Spatial scale affects the relative role of stochasticity versus determinism in soil bacterial communities in wheat fields across the North China Plain, Microbiome, 6, 1, (2018)
  • [7] Fargione J, Brown C S, Tilman D., Community assembly and invasion: an experimental test of neutral versus niche processes, Proceedings of the National Academy of Sciences of the United States of America, 100, 15, pp. 8916-8920, (2003)
  • [8] Chesson P., Mechanisms of maintenance of species diversity, Annual Review of Ecology and Systematics, 31, pp. 343-366, (2000)
  • [9] Hubbell S P., The unified neutral theory of biodiversity and biogeography, (2001)
  • [10] Zhou J Z, Deng Y, Zhang P, Et al., Stochasticity, succession, and environmental perturbations in a fluidic ecosystem, Proceedings of the National Academy of Sciences of the United States of America, 111, 9, pp. E836-E845, (2014)
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