Chapter 7: Hydrogenases, Hydrogen Production, and Anoxia

Matthew C. Posewitz, Alexandra Dubini, Jonathan E. Meuser, Michael Seibert, Maria L. Ghirardi

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

48 Scopus Citations

Abstract

The focus of this chapter is hydrogenase activity, which remains unresolved and new advances are required to define more clearly the metabolic and enzymatic activities. The metabolisms carried out by hydrogenase viz. H2 metabolism and fermentative metabolism are elaborated here. Hydrogenases are the focus of research efforts aimed at producing H2 a renewable, non-polluting energy carrier, and organisms such as Chlamydomonasare currently being emphasized since they have the ability to couple H2 production to photosynthesis. Hydrogenases are the focus of research efforts aimed at producing H2 as a renewable, non-polluting energy carrier, and organisms such as Chlamydomonas are currently being emphasized since they have the ability to couple H2 production to photosynthesis. However, more efficient interactions with the photosynthetic electron-transport chain under oxygenic conditions and/or an O2-tolerant enzyme is probably required to improve yields. Several contemporary studies examining hydrogenases and H2 metabolism in Chlamydomonas have provided substantial insights into the fields of H2 photoproduction, hydrogenase activity and maturation, and anoxic algal physiology.

Original languageAmerican English
Title of host publicationThe Chlamydomonas Sourcebook, Second Edition
Subtitle of host publicationVolume 2: Organellar and Metabolic Processes
EditorsD. B. Stern
PublisherElsevier Inc.
Pages217-255
Number of pages39
Volume2
ISBN (Print)9780123708731
DOIs
StatePublished - 2009

NREL Publication Number

  • NREL/CH-270-43063

Keywords

  • hydrogen production
  • hydrogenases

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