Integration of hydrogenase expression and hydrogen sensing in bacterial cell physiology

Chris Greening, Gregory M. Cook

Research output: Contribution to journalReview ArticleResearchpeer-review

36 Citations (Scopus)


Hydrogenases are ubiquitous in ecosystems and widespread in microorganisms. In bacteria, hydrogen metabolism is a facultative trait that is tightly regulated in response to both external factors (e.g. gas concentrations) and internal factors (e.g. redox state). Here we consider how environmental and pathogenic bacteria regulate [NiFe]-hydrogenases to adapt to chemical changes and meet physiological needs. We introduce this concept by exploring how Ralstonia eutropha switches between heterotrophic and lithotrophic growth modes by sensing hydrogen and electron availability. The regulation and integration of hydrogen metabolism in the virulence of Salmonella enterica and Helicobacter pylori, persistence of mycobacteria and streptomycetes, and differentiation of filamentous cyanobacteria are subsequently discussed. We also consider how these findings are extendable to other systems.

Original languageEnglish
Pages (from-to)30-38
Number of pages9
JournalCurrent Opinion in Microbiology
Issue number1
Publication statusPublished - 1 Apr 2014
Externally publishedYes

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