Rui Zhao

TL;DR: Recovering metagenome-assembled genomes of archaea from the CR margin and comparing them to their relatives from shallower settings suggests the potential capability of Lokiarchaeota members to anaerobically degrade aliphatic and aromatic hydrocarbons and expands knowledge about the metabolic functional repertoire of marine benthic archaea.

TL;DR: It is suggested that hydrocarbon seeps can greatly change the microbial community structure by stimulating nitrogen fixation, inherently shifting the nitrogen metabolism compared to those of the reference sediments.

TL;DR: Sifarchaeota as discussed by the authors encoded an anaerobic pathway for methylotrophy enabling the utilization of C1 to C3 compounds (methanol and methylamines) to synthesize acetyl coenzyme A (acetyl-CoA).

TL;DR: It is suggested that the adaptive radiation of AOA into marine sediments occurred more than once in evolution and resulted in three distinct lineages with particular adaptations to this extremely energy limiting and high-pressure environment.

TL;DR: New genomes of Helarchaeota and the co-occurring sulfate-reducing bacteria (SRB) recovered from organic-rich sediments off Costa Rica Margin suggest that HelarchAEota may metabolize synergistically with some SRB, and together exert an important influence on the carbon cycle by mitigating the hydrocarbon emission from sediments to the overlying ocean.