Rapid growth rate responses of terrestrial bacteria to field warming on the Antarctic Peninsula.

ABSTRACT: Ice-free terrestrial environments of the western Antarctic Peninsula are expanding and subject to colonization by new microorganisms and plants, which control biogeochemical cycling. Measuring growth rates of microbial populations and ecosystem carbon flux is critical for understanding how terrestrial ecosystems in Antarctica will respond to future warming. We implemented a field warming experiment in early (bare soil; +2 °C) and late (peat moss-dominated; +1.2 °C) successional glacier forefield sites on the western Antarctica Peninsula. We used quantitative stable isotope probing with H₂¹⁸O using intact cores in situ to determine growth rate responses of bacterial taxa to short-term (1 month) warming. Warming increased the growth rates of bacterial communities at bot

SUBMITTER: Purcell AM 

PROVIDER: S-EPMC10689830 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature