Orit Sivan

This study investigates how Pseudomonas chlororaphis produces PCN, which alters the morphology and signaling of Bacillus subtilis without affecting its growth.

The paper shows archaea, specifically Bathyarchaeia, dominate deep sediments by prioritizing maintenance over growth, leading to long-term organic carbon preservation.

The paper models thermodynamic and kinetic controls on microbial iron and manganese reduction in methanic sediments, finding that oxide type, not concentration, primarily influences bioreaction rates.

The paper investigates magnetite dynamics in marine methanic sediments, finding net magnetite precipitation in the middle zone and highlighting the role of microbial activity and redox conditions in shaping magnetic signals.

This study examines methane and nitrogen oxide emissions from thawing Arctic yedoma permafrost, revealing seasonal microbial processes that influence greenhouse gas release.