Rix, L.N., Burdett, H.L. and Kamenos, N. (2012) Irradiance-mediated dimethylsulphoniopropionate (DMSP) responses of red coralline algae. Estuarine, Coastal and Shelf Science, 96, pp. 268-272. (doi: 10.1016/j.ecss.2011.11.022)
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Abstract
Red coralline algae produce significant quantities of dimethylsulphoniopropionate (DMSP), whose breakdown products include the important climate gas dimethylsulphide (DMS) but little is known about how environmental factors influence this DMS(P) production. The effect of photosynthetically active radiation (PAR) on intracellular DMS(P) concentrations in the red coralline algae Lithothamnion glaciale was investigated using short (30 min) and longer-term (up to 507 h) acclimatory responses and control and high-PAR light regimes. Longer-term acclimatory intracellular DMS(P) concentrations were significantly reduced following exposure to high-PAR (220e250 mmol m<sup>-2</sup> s<sup>-1</sup>). No short-term acclimatory effects were observed. We conclude that while DMS(P) content in L. glaciale does respond to changes in irradiance, the effect takes place over hours e days rather than minutes, suggesting a continued turnover of DMS(P) to combat oxidative stress induced by prolonged high-PAR exposure. Immediate short-term acclimatory responses do not appear to occur.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Kamenos, Professor Nick |
| Authors: | Rix, L.N., Burdett, H.L., and Kamenos, N. |
| College/School: | College of Science and Engineering > School of Geographical and Earth Sciences > Earth Sciences |
| Journal Name: | Estuarine, Coastal and Shelf Science |
| ISSN: | 0272-7714 |
| Published Online: | 18 November 2011 |
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