Stefan Häusler

TL;DR: It is proposed that, due to limited mass transfer, high photosynthetic activity in Fe2-rich environments forms a protective zone where Fe2+ precipitates abiotically at a non-lethal distance from the cyanobacteria.

TL;DR: Analysis of the water’s chemistry shows evidence of microbial activity along the path and suggests that the springs supply nitrogen, phosphorus and organic matter to the microbial communities in the Dead Sea.

TL;DR: The model results confirmed that the observed partitioning between photosynthetic modes can be explained by a simple kinetic control based on the affinity of SQR and PSII toward PQ, which explains the concurrent OP and AP over an astonishingly wide range of H2S concentrations and irradiances.

TL;DR: This paper investigated a thermal gradient from 18 to 101°C across a marine sediment field and tested the hypothesis that cell membrane lipids provide a major biochemical basis for the bioenergetics of archaea and bacteria under heat stress, providing a new angle for interpreting membrane lipid structure-function enabling archaee and bacteria to survive and grow in hydrothermal systems.

TL;DR: The data suggest that, when two independent sources of energy are available, the structure and activity of microbial communities is primarily determined by the continuous rather than the intermittent energy source, even if the time-integrated energy flux of the intermittentenergy source is greater.