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Zeng F, Zhu Y, Zhang D, Zhao Z, Li Q, Ma P, Zhang G, Wang Y, Wu S, Guo S, Sun G. Metagenomic analysis of the soil microbial composition and salt tolerance mechanism in Yuncheng Salt Lake, Shanxi Province. Front Microbiol 2022; 13:1004556. [PMID: 36225369 PMCID: PMC9549588 DOI: 10.3389/fmicb.2022.1004556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/08/2020] [Indexed: 11/13/2022] Open
Abstract
The soil in Yuncheng Salt Lake has serious salinization and the biogeographic environment affects the composition and distribution of special halophilic and salt-tolerant microbial communities in this area. Therefore, this study collected soils at distances of 15, 30, and 45 m from the Salt Lake and used non-saline soil (60 m) as a control to explore the microbial composition and salt tolerance mechanisms using metagenomics technology. The results showed that the dominant species and abundance of salt-tolerant microorganisms changed gradually with distance from Salt Lake. The salt-tolerant microorganisms can increase the expression of the Na+/H+ antiporter by upregulating the Na+/H+ antiporter subunit mnhA-G to respond to salt stress, simultaneously upregulating the genes in the betaine/proline transport system to promote the conversion of choline into betaine, while also upregulating the trehalose/maltose transport system encode genes to promote the synthesis of trehalose to resist a high salt environment.
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Affiliation(s)
- Feifeng Zeng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yonghong Zhu
- Cotton Research Institute, Shanxi Agricultural University, Shanxi, China
| | - Dongling Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zengqiang Zhao
- Xinjiang Academy of Agricultural and Reclamation, Xinjiang, China
| | - Quansheng Li
- Xinjiang Academy of Agricultural and Reclamation, Xinjiang, China
| | - Panpan Ma
- Xinjiang Academy of Agricultural and Reclamation, Xinjiang, China
| | - Guoli Zhang
- Xinjiang Academy of Agricultural and Reclamation, Xinjiang, China
| | - Yuan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shenjie Wu
- Cotton Research Institute, Shanxi Agricultural University, Shanxi, China
| | - Sandui Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guoqing Sun
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Guoqing Sun,
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