Differential responses of anaerobic respiring microorganisms to temperature effects in Antarctic coastal sediments

WUNDER LEA C.; AROMOKEYE DAVID A.; WILLIS PORATTI GRACIANA; HENKEL SUSANN; YIN XIURAN; RICHTER-HEITMANN TIM; VÁZQUEZ SUSANA; MAC CORMACK WALTER; FRIEDRICH MICHAEL

Lausanne

Simposio; ISME 18th Symposium on Microbial Ecology; 2022

ISME

One of the clearest signs of climate change observed in polar regions such as the Western Antarctic Peninsula is accelerated glacial melting caused by temperature increase. Consequently, newly ice-free areas form and glacial meltwater supplies higher amounts of nutrients such as iron into nearby oceans and sediments. In the study site (Potter Cove at King George Island/Isla 25 de Mayo, Antarctica), we studied the effects of this environmental change on microorganisms performing the final steps of organic matter degradation using a representative substrate, acetate, in stable isotope probing incubations.