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|Title:||Spectral effects on symbiodinium photobiology studied with a programmable light engine||Authors:||Wangpraseurt, Daniel
Ralph, Peter J.
|Keywords:||DRNTU::Science::Biological sciences::Microbiology::Microbial ecology||Issue Date:||2014||Source:||Wangpraseurt, D., Tamburic, B., Szabó, M., Suggett, D., Ralph, P. J., & Kühl, M. (2014). Spectral effects on symbiodinium photobiology studied with a programmable light engine. PLoS One, 9(11), e112809-.||Series/Report no.:||PLoS One||Abstract:||The spectral light field of Symbiodinium within the tissue of the coral animal host can deviate strongly from the ambient light field on a coral reef and that of artificial light sources used in lab studies on coral photobiology. Here, we used a novel approach involving light microsensor measurements and a programmable light engine to reconstruct the spectral light field that Symbiodinium is exposed to inside the coral host and the light field of a conventional halogen lamp in a comparative study of Symbiodinium photobiology. We found that extracellular gross photosynthetic O2 evolution was unchanged under different spectral illumination, while the more red-weighted halogen lamp spectrum decreased PSII electron transport rates and there was a trend towards increased light-enhanced dark respiration rates under excess irradiance. The approach provided here allows for reconstructing and comparing intra-tissue coral light fields and other complex spectral compositions of incident irradiance. This novel combination of sensor technologies provides a framework to studying the influence of macro- and microscale optics on Symbiodinium photobiology with unprecedented spectral resolution.||URI:||https://hdl.handle.net/10356/103198
|ISSN:||1932-6203||DOI:||http://dx.doi.org/10.1371/journal.pone.0112809||Rights:||© 2014 Wangpraseurt et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.||metadata.item.grantfulltext:||open||metadata.item.fulltext:||With Fulltext|
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