Hydrogen production by photosynthetic water splitting
- Oak Ridge National Lab., TN (United States)
Contrary to the prediction of the {open_quotes}Z-scheme{close_quotes} model of photosynthesis, experiments demonstrated that mutants of Chlamydomonas containing Photosystem II (PSII) but lacking Photosystem I (PSI), can grow photoautotrophically with O{sub 2} evolution and using atmospheric CO{sub 2} as the sole carbon source. Autotrophic photosynthesis by PSI-deficient mutants was stable both under anaerobic conditions and in air (21% O{sub 2}) at an actinic intensity of 200 {mu}E/m{sup -2}{sup {sm_bullet}}s. This {open_quotes}PSII photosynthesis,{close_quotes} sufficient to support cell development and mobility, may also occur in wild-type green algae and higher plants. The mutants can survive under 2000 {mu}E{sup {sm_bullet}}m{sup -2}{sup {sm_bullet}}s{sup -1} with air, although they have less resistance to photoinhibition.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 447145
- Report Number(s):
- NREL/CP-430-21968-Vol.1; CONF-9605195-Vol.1; ON: DE97000053; TRN: 97:001172-0013
- Resource Relation:
- Conference: 1996 annual hydrogen peer review for DOE, Miami, FL (United States), 1-3 May 1996; Other Information: PBD: Oct 1996; Related Information: Is Part Of Proceedings of the 1996 US DOE hydrogen program review. Volume 1; PB: 575 p.
- Country of Publication:
- United States
- Language:
- English
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