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东帕米尔不同海拔处细菌群落的组成与分布及潜在耐辐射细菌

Composition and distribution of bacterial communities and potential radiation-resistant bacteria at different elevations in the eastern Pamirs.

作者信息

Zhu Jing, Wang Hui-Nan, Tang Qi-Yong, Gu Mei-Ying, Zhang Zhi-Dong

机构信息

Xinjiang Laboratory of Special Environmental Microbiology, Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi, China.

出版信息

Front Microbiol. 2024 Jun 19;15:1427806. doi: 10.3389/fmicb.2024.1427806. eCollection 2024.

DOI:10.3389/fmicb.2024.1427806
PMID:38962116
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11220165/
Abstract

Altitude and ultraviolet (UV) radiation may affect the community composition and distribution of microorganisms in soil ecosystems. In this study, 49 soil samples from 10 locations were collected from different elevations on the eastern Pamir Plateau and analyzed for soil microbial community structure and function using high-throughput sequencing. The results showed that soil samples from different elevations of the eastern Pamir Plateau contained 6834 OTUs in 26 phyla and 399 genera. The dominant phyla common to different elevations were , , , , and . The dominant genera were , , , and . Species richness increased slightly with elevation, and there were significant differences in community composition between the elevations. Elevation and UV exposure are important factors that drive changes in bacterial communities. The results of the KEGG pathway showed that drug resistance, antineoplastic, aging, replication, and repair were enhanced and then slightly decreased with increasing elevation. Bacterial communities at different elevations were rich in radiation-resistant microorganisms, and the main genera were , , , , and . The findings have shown the composition and distribution of bacterial communities at different elevations on the Eastern Pamir Plateau. Potentially radiation tolerant microbial species were also examined. The results are of considerable importance for the succession of bacterial microorganisms in the plateau region, the study of radiation tolerant bacterial germplasm resources, and the application of biofunctionality.

摘要

海拔和紫外线辐射可能会影响土壤生态系统中微生物的群落组成和分布。在本研究中，从东帕米尔高原不同海拔的10个地点采集了49份土壤样本，并使用高通量测序分析了土壤微生物群落结构和功能。结果表明，东帕米尔高原不同海拔的土壤样本包含26个门和399个属的6834个操作分类单元（OTU）。不同海拔共有的优势门为 、 、 、 、 和 。优势属为 、 、 、 和 。物种丰富度随海拔略有增加，不同海拔之间的群落组成存在显著差异。海拔和紫外线暴露是驱动细菌群落变化的重要因素。京都基因与基因组百科全书（KEGG）通路结果表明，随着海拔升高，耐药性、抗肿瘤、衰老、复制和修复功能先增强后略有下降。不同海拔的细菌群落富含抗辐射微生物，主要属为 、 、 、 、 和 。研究结果揭示了东帕米尔高原不同海拔细菌群落的组成和分布。还检测了潜在的耐辐射微生物物种。这些结果对于高原地区细菌微生物的演替、耐辐射细菌种质资源的研究以及生物功能的应用具有重要意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/3610e969b0e5/fmicb-15-1427806-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/e0d2322004e4/fmicb-15-1427806-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/eac706271bfc/fmicb-15-1427806-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/b8b10fa9d9ac/fmicb-15-1427806-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/cbb0439efa3e/fmicb-15-1427806-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/1196dbe2f9e9/fmicb-15-1427806-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/5c113a63f4ab/fmicb-15-1427806-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8501/11220165/3610e969b0e5/fmicb-15-1427806-g011.jpg

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