Large Hydrogen Isotope Fractionation Distinguishes Nitrogenase-Derived Methane from Other Methane Sources.

Appl Environ Microbiol · 2020 · PMC7499036 · PMID 32709722

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may be significantno p-value reported

We did not test whether the presence of exogenous H 2 influences the measured hydrogen isotope fractionation when an uptake hydrogenase is present ( 69 ), a mechanism that may be significant for the δ 2 H H2 effect on the isotopic composition of methane generated by hydrogenotrophic methanogenesis ( 48 , 56 , 57 , 59 ).

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