The chlorosome: a prototype for efficient light harvesting in photosynthesis

G. Oostergetel, H. van Amerongen, E.J. Boekema

Research output: Contribution to journalArticleAcademicpeer-review

192 Citations (Scopus)

Abstract

Three phyla of bacteria include phototrophs that contain unique antenna systems, chlorosomes, as the principal light-harvesting apparatus. Chlorosomes are the largest known supramolecular antenna systems and contain hundreds of thousands of BChl c/d/e molecules enclosed by a single membrane leaflet and a baseplate. The BChl pigments are organized via self-assembly and do not require proteins to provide a scaffold for efficient light harvesting. Their excitation energy flows via a small protein, CsmA embedded in the baseplate to the photosynthetic reaction centres. Chlorosomes allow for photosynthesis at very low light intensities by ultra-rapid transfer of excitations to reaction centres and enable organisms with chlorosomes to live at extraordinarily low light intensities under which no other phototrophic organisms can grow. This article reviews several aspects of chlorosomes: the supramolecular and molecular organizations and the light-harvesting and spectroscopic properties. In addition, it provides some novel information about the organization of the baseplate
Original languageEnglish
Pages (from-to)245-255
JournalPhotosynthesis Research
Volume104
Issue number2-3
DOIs
Publication statusPublished - 2010

Keywords

  • bacterium chloroflexus-aurantiacus
  • green sulfur bacteria
  • pump-probe spectroscopy
  • chlorobium-tepidum
  • bacteriochlorophyll-c
  • energy-transfer
  • linear dichroism
  • photoprotection mechanism
  • pigment organization
  • antenna protein

Fingerprint

Dive into the research topics of 'The chlorosome: a prototype for efficient light harvesting in photosynthesis'. Together they form a unique fingerprint.

Cite this