Title |
Dynamic photoinhibition exhibited by red coralline algae in the red sea
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Published in |
BMC Plant Biology, May 2014
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DOI | 10.1186/1471-2229-14-139 |
Pubmed ID | |
Authors |
Heidi L Burdett, Victoria Keddie, Nicola MacArthur, Laurin McDowall, Jennifer McLeish, Eva Spielvogel, Angela D Hatton, Nicholas A Kamenos |
Abstract |
Red coralline algae are critical components of tropical reef systems, and their success and development is, at least in part, dependent on photosynthesis. However, natural variability in the photosynthetic characteristics of red coralline algae is poorly understood. This study investigated diurnal variability in encrusting Porolithon sp. and free-living Lithophyllum kotschyanum. Measured parameters included: photosynthetic characteristics, pigment composition, thallus reflectance and intracellular concentrations of dimethylsulphoniopropionate (DMSP), an algal antioxidant that is derived from methionine, an indirect product of photosynthesis. L. kotschyanum thalli were characterised by a bleached topside and a pigmented underside. |
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