Light history in dinoflagellates

EFPU and Friedrich Alexander Universität (Germany) researchers carried out investigations to evaluate the importance of the previous light history in conditioning the photosynthetic and motility responses of the dinoflagellate Gymnodinium chlorophorum.

Device (solar simulator) to evaluate the effects of UVR and temperature in Gymnodinium chlorophorum.

Ultraviolet radiation (UVR) is generally considered as a stress factor for phytoplankton, causing inhibition of photosynthesis and reduction of motility. In this work it was found that higher radiation and temperature levels (due to global change) interact in different manner, depending on the previous light history thus conditioning responses of Gymnodinium chlorophorum.

The article was published in Journal of Photochemistry and Photobiology B: Biology (click para ir a la página).

Complete reference: Häder, D.-P., P. Richter, V.E. Villafañe & E.W. Helbling. 2014. Influence of light history on the photosynthetic and motility responses of Gymnodinium chlorophorum exposed to UVR and different temperatures. Journal of Photochemistry and Photobiology B: Biology, 138: 273-281.


This work was supported by Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) –Deutsche Forschungsgemeinschaft (DFG), Agencia Nacional de Promoción Científica y Tecnológica – ANPCyT (PICT 2007-1651 y PICT 2012-0271), CONICET PIP 11220100100228 and Fundación Playa Unión.