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Plant and Cell Physiology, 1997, Vol. 38, No. 2 213-216
© 1997

Short Communication

Exposure of Dunaliella salina to Low Temperature Mimics the High Light-Induced Accumulation of Carotenoids and the Carotenoid Binding Protein (Cbr)

Marianna Kró1, Denis P. Maxwell2 and Norman P.A. Huner1

1 Dept. of Plant Science, University of Western Ontario London, Canada N6A 5B7
2 Plant Research Laboratory, Michigan State University East Lansing, Michigan, 48824-1312 U.S.A.

We report that growth of Dunaliella salina at either 13°C/150 µmol m–2s–1 or 30°C/2,500 µmol m–2 s–1 results in the accumulation of comparable levels of carotenoids and the zeaxanthin-binding protein, Cbr. We conclude that carotenoid and Cbr abundance in this green alga respond to changes in PSII ‘excitation pressure’ rather than to high light per se.

(Received September 19, 1996; Accepted November 20, 1996)
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