Metagenomic insights into soil microbial diversity and antibiotic resistance genes in pristine karst tiankeng ecosystems.

ABSTRACT: Surveys of microorganisms and antibiotic resistance genes (ARGs) in edaphic systems have centered on those in human-impacted environments, with relatively little information from primitive environments. The karst tiankeng (also known as sinkholes) is the largest negative terrain on the earth's surface, and the trapped terrain keeps the interior relatively pristine. In this study, three of the most representative tiankeng types (severely, moderately, and non-degraded tiankengs) were selected, and microbial composition, function, and their association with ARGs were determined using metagenetic techniques. The dominant phyla in karst tiankengs were Proteobacteria, Actinobacteria, and Acidobacteria; the dominant archaea were Crenarchaeota; and the dominant fungi we

SUBMITTER: Jiang C 

PROVIDER: S-EPMC12645922 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature