Inhibitory effects of climate change on the growth and extracellular enzyme activities of a widespread Antarctic soil fungus.

ABSTRACT: Temperatures approaching or exceeding 20°C have been measured during summer in polar regions at the surfaces of barren fellfield soils under cloudless skies around solar noon. However, despite the upper temperature limit for the growth of cold-adapted microbes-which are abundant in polar soils and have pivotal roles in nutrient cycling-typically being close to this temperature, previous studies have not addressed the consequences of climate change for the metabolism of these organisms in the natural environment. Here in a 5-year field experiment on Alexander Island in the southern maritime Antarctic, we show that the abundance of Pseudogymnoascus roseus, the most widespread decomposer fungus in maritime Antarctic fellfield soils, is reduced by 1-2 orders of magnitude when irrigated and nut

SUBMITTER: Misiak M 

PROVIDER: S-EPMC7898924 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature