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Adaptation of Rhodopseudomonas acidophila strain 7050 to growth at different light intensities: what are the benefits to changing the type of LH2?

Abstract

Typical purple bacterial photosynthetic units consist of light harvesting one/reaction centre ‘core’ complexes surrounded by light harvesting two complexes. Factors such as the number and size of photosynthetic units per cell, as well as the type of light harvesting two complex that is produced, are controlled by environmental factors. In this paper, the change in the type of LH2 present in the Rhodopseudomonas acidophila strain 7050 is described when cells are grown at a range of different light intensities. This species contains multiple pucBA genes that encode the apoproteins that form light-harvesting complex two and a more complex mixture of spectroscopic forms of this complex has been found than was previously thought to be the case. Femto-second time resolved laser flash photolysis has been used to investigate how the energy transfer properties in membranes from high-light and low-light adapted cells change as the composition of the LH2 complexes varies.

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Publication details

The article was received on 26 Aug 2017, accepted on 13 Oct 2017 and first published on 18 Oct 2017


Article type: Paper
DOI: 10.1039/C7FD00191F
Citation: Faraday Discuss., 2017, Accepted Manuscript
  • Open access: Creative Commons BY license
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    Adaptation of Rhodopseudomonas acidophila strain 7050 to growth at different light intensities: what are the benefits to changing the type of LH2?

    A. T. Gardiner, D. M. Niedzwiedzki and R. J. Cogdell, Faraday Discuss., 2017, Accepted Manuscript , DOI: 10.1039/C7FD00191F

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