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Photoautotrophic hydrogen production by eukaryotic microalgae under aerobic conditions

Title
Photoautotrophic hydrogen production by eukaryotic microalgae under aerobic conditions
Author
전병훈
Keywords
ALGA SCENEDESMUS-OBLIQUUS; GREEN-ALGA; IRON HYDROGENASE; ENERGY; H-2; PHOTOSYNTHESIS; CYANOBACTERIA; METABOLISM; GROWTH; WATER
Issue Date
2014-02
Publisher
Nature Publishing Group
Citation
Nature Communications, 2014, 5, P.1-6
Abstract
Eukaryotic algae and cyanobacteria produce hydrogen under anaerobic and limited aerobic conditions. Here we show that novel microalgal strains (Chlorella vulgaris YSL01 and YSL16) upregulate the expression of the hydrogenase gene (HYDA) and simultaneously produce hydrogen through photosynthesis, using CO2 as the sole source of carbon under aerobic conditions with continuous illumination. We employ dissolved oxygen regimes that represent natural aquatic conditions for microalgae. The experimental expression of HYDA and the specific activity of hydrogenase demonstrate that C. vulgaris YSL01 and YSL16 enzymatically produce hydrogen, even under atmospheric conditions, which was previously considered infeasible. Photoautotrophic H-2 production has important implications for assessing ecological and algae-based photolysis.
URI
https://www.nature.com/articles/ncomms4234http://repository.hanyang.ac.kr/handle/20.500.11754/71179
ISSN
2041-1723
DOI
10.1038/ncomms4234
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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