A niche for cyanobacteria containing chlorophyll d

Michael Kühl (), Min Chen, Peter J. Ralph, Ulrich Schreiber and Anthony W. D. Larkum
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Michael Kühl: Marine Biological Laboratory, Institute of Biology, University of Copenhagen
Min Chen: School of Biological Sciences, A08, University of Sydney
Peter J. Ralph: Institute for Water and Environmental Resource Management, University of Technology Sydney, Gore Hill
Ulrich Schreiber: Julius-von-Sachs-Institut für Biowissenschaften, Universität Würzburg
Anthony W. D. Larkum: School of Biological Sciences, A08, University of Sydney

Nature, 2005, vol. 433, issue 7028, 820-820

Abstract: Abstract The cyanobacterium known as Acaryochloris marina is a unique phototroph that uses chlorophyll d as its principal light-harvesting pigment instead of chlorophyll a, the form commonly found in plants, algae and other cyanobacteria; this means that it depends on far-red light for photosynthesis. Here we demonstrate photosynthetic activity in Acaryochloris-like phototrophs that live underneath minute coral-reef invertebrates (didemnid ascidians) in a shaded niche enriched in near-infrared light. This discovery clarifies how these cyanobacteria are able to thrive as free-living organisms in their natural habitat.

Date: 2005
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DOI: 10.1038/433820a

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