Publication Abstracts

Mielke et al. 2011

Mielke, S.P., N.Y. Kiang, R.E. Blankenship, M.R. Gunner, and D. Mauzerall, 2011: Efficiency of photosynthesis in a Chl d-utilizing cyanobacterium is comparable to or higher than that in Chl a-utilizing oxygenic species. Biochim. Biophys. Acta Bioenerg., 1807, 1231-1236, doi:10.1016/j.bbabio.2011.06.007.

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.

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BibTeX Citation

@article{mi03710v,
  author={Mielke, S. P. and Kiang, N. Y. and Blankenship, R. E. and Gunner, M. R. and Mauzerall, D.},
  title={Efficiency of photosynthesis in a Chl d-utilizing cyanobacterium is comparable to or higher than that in Chl a-utilizing oxygenic species},
  year={2011},
  journal={Biochimica et Biophysica Acta - Bioenergetics},
  volume={1807},
  pages={1231--1236},
  doi={10.1016/j.bbabio.2011.06.007},
}

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RIS Citation

TY  - JOUR
ID  - mi03710v
AU  - Mielke, S. P.
AU  - Kiang, N. Y.
AU  - Blankenship, R. E.
AU  - Gunner, M. R.
AU  - Mauzerall, D.
PY  - 2011
TI  - Efficiency of photosynthesis in a Chl d-utilizing cyanobacterium is comparable to or higher than that in Chl a-utilizing oxygenic species
JA  - Biochim. Biophys. Acta Bioenerg.
JO  - Biochimica et Biophysica Acta - Bioenergetics
VL  - 1807
SP  - 1231
EP  - 1236
DO  - 10.1016/j.bbabio.2011.06.007
ER  -

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