Climate change and permafrost

Growth Optimization Predicts Microbial Success in a Permafrost Thaw Experiment

The paper develops a genomic index to predict microbial success in permafrost thaw by analyzing growth optimization and validates it with incubation experiments.

Shrub and Sedge Rhizosphere Communities Display Distinct Affinities Toward Exudates and Soil Organic Matter Degradation: a Quantitative Stable Isotope Probing Analysis

This study compares microbial community responses to exudates and soil organic matter degradation in shrub and sedge rhizosphere soils using stable isotope probing.

Nitrous Oxide Formation and Consumption in Thawing Permafrost: A Microcosm Study

This study investigates N2O formation and consumption in thawing permafrost using microcosms, finding that N2O formation exceeds consumption, likely driven by non-denitrifying bacteria.

The methane-cycling microbiome in intact and degraded permafrost soils of the pan-Arctic

This study identifies methanogen and methanotroph phylotypes in pan-Arctic permafrost soils and shows their spatial distribution and functional shifts after permafrost degradation.

Microbial Resuscitation and Growth Rates in Deep Permafrost: Lipid Stable Isotope Probing Results from the Permafrost Research Tunnel in Fox, Alaska

This study measures microbial resuscitation and growth rates in deep permafrost using lipid-SIP, finding extremely slow initial growth and community restructuring within six months of thaw.

Increases in Arctic extreme climatic events are linked to negative fitness effects on the local biota

This study links increased Arctic extreme climatic events to negative fitness effects on local biota, showing significant impacts on angiosperms and chordates.