Document Detail


Efficiency of photosynthesis in a Chl d-utilizing cyanobacterium is comparable to or higher than that in Chl a-utilizing oxygenic species.
MedLine Citation:
PMID:  21708123     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The cyanobacterium Acaryochloris marina uses chlorophyll d to carry out oxygenic photosynthesis in environments depleted in visible and enhanced in lower-energy, far-red light. However, the extent to which low photon energies limit the efficiency of oxygenic photochemistry in A. marina is not known. Here, we report the first direct measurements of the energy-storage efficiency of the photosynthetic light reactions in A. marina whole cells, and find it is comparable to or higher than that in typical, chlorophyll a-utilizing oxygenic species. This finding indicates that oxygenic photosynthesis is not fundamentally limited at the photon energies employed by A. marina, and therefore is potentially viable in even longer-wavelength light environments.
Authors:
S P Mielke; N Y Kiang; R E Blankenship; M R Gunner; D Mauzerall
Related Documents :
16657193 - Blockage by gibberellic acid of phytochrome effects on growth, auxin responses, and fla...
22779473 - Low frequency sound propagation in activated carbon.
19354373 - Revisiting experimental methods for studies of acidity-dependent ocean sound absorption.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-24
Journal Detail:
Title:  Biochimica et biophysica acta     Volume:  -     ISSN:  0006-3002     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0217513     Medline TA:  Biochim Biophys Acta     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
Affiliation:
NASA Goddard Institute for Space Studies, Columbia University, New York, NY, USA; Laboratory of Photobiology, Rockefeller University, New York, NY, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Effects of cyclosis on chloroplast-cytoplasm interactions revealed with localized lighting in Charac...
Next Document:  A new target for an old regulator: H-NS represses transcription of bolA morphogene by direct binding...