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Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities
Jue Zhao; Ling Jin; Dong Wu; Jia-wen Xie; Jun Li; Xue-wu Fu; Zhi-yuan Cong; Ping-qing Fu; Yang Zhang; Xiao-san Luo; Xin-bin Feng; Gan Zhang; James M. Tiedje; Xiang-dong Li
2022
Source PublicationProceedings of the National Academy of Sciences of the United States of America
Volume119Issue:42
Abstract

Airborne bacteria are an influential component of the Earth's microbiomes, but their community structure and biogeographic distribution patterns have yet to be understood. We analyzed the bacterial communities of 370 air particulate samples collected from 63 sites around the world and constructed an airborne bacterial reference catalog with more than 27 million nonredundant 16S ribosomal RNA (rRNA) gene sequences. We present their biogeographic pattern and decipher the interlacing of the microbiome co-occurrence network with surface environments of the Earth. While the total abundance of global airborne bacteria in the troposphere (1.72 x 10(24) cells) is 1 to 3 orders of magnitude lower than that of other habitats, the number of bacterial taxa (i.e., richness) in the atmosphere (4.71 x 10(8) to 3.08 x 10(9)) is comparable to that in the hydrosphere, and its maximum occurs in midlatitude regions, as is also observed in other ecosystems. The airborne bacterial community harbors a unique set of dominant taxa (24 species); however, its structure appears to be more easily perturbed, due to the more prominent role of stochastic processes in shaping community assembly. This is corroborated by the major contribution of surface microbiomes to airborne bacteria (averaging 46.3%), while atmospheric conditions such as meteorological factors and air quality also play a role. Particularly in urban areas, human impacts weaken the relative importance of plant sources of airborne bacteria and elevate the occurrence of potential pathogens from anthropogenic sources. These findings serve as a key reference for predicting planetary microbiome responses and the health impacts of inhalable microbiomes with future changes in the environment.

KeywordAirborne Bacteriaj earth Microbiomej bioaerosolsj anthropogenic Impactsj biogeograph
DOI10.1073/pnas.220446511
URL查看原文
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13609
Collection环境地球化学国家重点实验室
Affiliation1.Department of Civil and Environmental Engineering, The HongKong Polytechnic University, Kowloon, Hong Kong
2.Department of Health Technologyand  Informatics,  The Hong  Kong  Polytechnic  University,  Kowloon, Hong  Kong
3.Shanghai Engineering Research Center of Biotransformation on Organic Solid Waste,School of Ecological and Environmental Science, East China Normal University,Shanghai 200241, China
4.State Key Laboratory of Organic Geochemistry, GuangzhouInstitute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
5.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences, Guiyang 550002, China
6.State Key Laboratory of TibetanPlateau Earth System, Resources and Environment (TPESRE), Institute of TibetanPlateau Research, Chinese Academy of Sciences, Beijing 100101, China
7.Institute ofSurface-Earth System Science, School of Earth System Science, Tianjin University,Tianjin 300072, China
8.College of Resources and Environment, University of ChineseAcademy  of Sciences, Beijing  100049, China
9.International Center  for Ecology,Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
10.Department of Plant, Soiland Microbial Sciences, Michigan State University, East Lansing, MI 48824
11.Department of Microbiology and Molecular Genetics, Michigan State University, EastLansing, MI 488
Recommended Citation
GB/T 7714
Jue Zhao,Ling Jin,Dong Wu,et al. Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities[J]. Proceedings of the National Academy of Sciences of the United States of America,2022,119(42).
APA Jue Zhao.,Ling Jin.,Dong Wu.,Jia-wen Xie.,Jun Li.,...&Xiang-dong Li.(2022).Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities.Proceedings of the National Academy of Sciences of the United States of America,119(42).
MLA Jue Zhao,et al."Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities".Proceedings of the National Academy of Sciences of the United States of America 119.42(2022).
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