About the Authors

Ken Noguchi

Affiliation Department of Biology, Kenyon College, Gambier, Ohio, United States of America

Daniel P. Riggins

Affiliation Department of Biology, Kenyon College, Gambier, Ohio, United States of America

Khalid C. Eldahan

Affiliation Department of Biology, Kenyon College, Gambier, Ohio, United States of America

Ryan D. Kitko

Affiliation Department of Biology, Kenyon College, Gambier, Ohio, United States of America

Joan L. Slonczewski

slonczewski@kenyon.edu

Affiliation Department of Biology, Kenyon College, Gambier, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Designed the study: KN. Conducted experiments: KN. Drafted the manuscript: KN. Conducted hydrogenase assays: DPR KCE RDK. Revised the manuscript: RDK JLS. Supervised the entire study: JLS.