Changes in supramolecular organization of cyanobacterial thylakoid membrane complexes in response to far-red light photoacclimation

Craig MacGregor-Chatwin, Dennis J. Nürnberg, Philip J. Jackson, Cvetelin Vasilev, Andrew Hitchcock, Ming Yang Ho, Gaozhong Shen, Christopher J. Gisriel, William H.J. Wood, Moontaha Mahbub, Vera M. Selinger, Matthew P. Johnson, Mark J. Dickman, Alfred William Rutherford, Donald A. Bryant, C. Neil Hunter

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Cyanobacteria are ubiquitous in nature and have developed numerous strategies that allow them to live in a diverse range of environments. Certain cyanobacteria synthesize chlorophylls d and f to acclimate to niches enriched in far-red light (FRL) and incorporate paralogous photosynthetic proteins into their photosynthetic apparatus in a process called FRL-induced photoacclimation (FaRLiP). We characterized the macromolecular changes involved in FRL-driven photosynthesis and used atomic force microscopy to examine the supramolecular organization of photosystem I associated with FaRLiP in three cyanobacterial species. Mass spectrometry showed the changes in the proteome of Chroococcidiopsis thermalis PCC 7203 that accompany FaRLiP. Fluorescence lifetime imaging microscopy and electron microscopy reveal an altered cellular distribution of photosystem complexes and illustrate the cell-to-cell variability of the FaRLiP response.

Original languageEnglish (US)
Article numbereabj4437
JournalScience Advances
Volume8
Issue number6
DOIs
StatePublished - Feb 2022

All Science Journal Classification (ASJC) codes

  • General

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