دورية أكاديمية
Impacts of oxbow lake evolution on sediment microbial community structure in the Yellow River source region.
| العنوان: | Impacts of oxbow lake evolution on sediment microbial community structure in the Yellow River source region. |
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| المؤلفون: | Li H; School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China., Tian S; Yellow River Institute of Hydraulic Research, Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, YRCC, Zhengzhou, 450003, China. Electronic address: tsm1981@163.com., Shang F; School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China. Electronic address: shangfude@henau.edu.cn., Shi X; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China., Zhang Y; Yellow River Institute of Hydraulic Research, Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, YRCC, Zhengzhou, 450003, China., Cao Y; Yellow River Institute of Hydraulic Research, Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, YRCC, Zhengzhou, 450003, China. |
| المصدر: | Environmental research [Environ Res] 2024 Jul 01; Vol. 252 (Pt 3), pp. 119042. Date of Electronic Publication: 2024 Apr 30. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <2000- > : Amsterdam : Elsevier Original Publication: New York, Academic Press. |
| مواضيع طبية MeSH: | Geologic Sediments*/microbiology , Lakes*/microbiology , Rivers*/microbiology , Rivers*/chemistry , Microbiota*, Bacteria/genetics ; Bacteria/classification ; Fungi/genetics ; Fungi/classification ; Fungi/isolation & purification ; China |
| مستخلص: | Oxbow lake formation and evolution have significant impacts on the fragile Yellow River Basin ecosystem. However, the effects of different oxbow lake evolutionary stages on sediment microbial community structure are not yet understood comprehensively. Therefore, microbial community structure in three stages of oxbow lake succession, namely, lotic lake (early stage), semi-lotic lake (middle stage), and lentic lake (late stage), was investigated in the present study in the Yellow River Basin on the Qinghai-Tibet Plateau. Amplicon sequencing was employed to reveal differences in microbial community diversity and composition. The bacterial and fungal communities in sediment were significantly different among the three succession stages and were driven by different environmental factors. In particular, bacterial community structure was influenced primarily by nitrate-nitrogen (N), microbial biomass phosphorus, and total carbon (C) and organic C in the early, middle, and late stages, respectively. Conversely, fungal community structure was influenced primarily by ammonium-N in the early stage and by moisture content in the middle and late stages. However, the predicted functions of the microbial communities did not exhibit significant differences across the three succession stages. Both bacteria and fungi were influenced significantly by stochastic factors. Homogeneous selection had a high relative contribution to bacteria community assembly in the middle stage, whereas the relative contributions of heterogeneous selection processes to fungal community assembly increased through the three stages. As succession time increased, the total number of keystone species increased gradually, and the late succession stage had high network complexity and the highest network stability. The findings could facilitate further elucidation of the evolution mechanisms of oxbow lake source area, high-altitude river evolution dynamics, in addition to aiding a deeper understanding of the long-term ecological evolution patterns of source river ecosystems. Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Shimin Tian reports financial support was provided by National Natural Science Foundation of China. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2024 Elsevier Inc. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Bacteria; Co-occurrence networks; Community assembly; Fungi; Sediment |
| تواريخ الأحداث: | Date Created: 20240501 Date Completed: 20240605 Latest Revision: 20240605 |
| رمز التحديث: | 20240606 |
| DOI: | 10.1016/j.envres.2024.119042 |
| PMID: | 38692420 |
| قاعدة البيانات: | MEDLINE |
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