Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities.

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 × 10²⁴ 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 (

SUBMITTER: Zhao J 

PROVIDER: S-EPMC9586312 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature