Sulfate-dependent reversibility of intracellular reactions explains the opposing isotope effects in the anaerobic oxidation of methane
Gunter Wegener, Jonathan Gropp, Heidi Taubner, Itay Halevy, Marcus Elvert
Abstract
H. Using a biochemical-isotopic model, we explain the sulfate dependence of the net isotopic fractionation through the thermodynamic drive of the involved intracellular reactions. Our findings relate these isotopic patterns to the physiology and environment of the ANME, thereby explaining a commonly observed isotopic enigma.
Topics & Concepts
SulfateAnaerobic oxidation of methaneAnaerobic exerciseMethaneIntracellularKinetic isotope effectChemistryEnvironmental chemistryBiologyBiochemistryDeuteriumPhysiologyPhysicsOrganic chemistryQuantum mechanicsMethane Hydrates and Related PhenomenaAtmospheric and Environmental Gas DynamicsHydrocarbon exploration and reservoir analysis