Vht hydrogenase is required for hydrogen cycling during nitrogen fixation by the non-hydrogenotrophic methanogen Methanosarcina acetivorans.
J. M. Hoerr, A. E. Dhamad, T. M. Deere, M. Chanderban, D. J. Lessner
This study shows that Vht hydrogenase in M. acetivorans recycles H2 produced by nitrogenase during N2 fixation, enabling optimal growth.
bioRxiv · Oct 12, 2021 · PreprintMicrobiology