Volume 47, Issue 5 pp. 737-739
Full Access

KINETICS OF PHOTOSYNTHETIC APPARATUS ADAPTATION IN Scenedesmus obliquus TO CHANGE IN IRRADIANCE AND LIGHT QUALITY

Bettina Hoffmann

Bettina Hoffmann

FB Biologie/Botanik, Philipps-Universitat, Lahnbergc,D–3550 Marburg, W. Germany

Search for more papers by this author
Horst Senger

Corresponding Author

Horst Senger

FB Biologie/Botanik, Philipps-Universitat, Lahnbergc,D–3550 Marburg, W. Germany

*To whom correspondence should be addressed.Search for more papers by this author
First published: May 1988
Citations: 16

Abstract

Abstract— Cells of the unicellular green alga Scenedesmus obliquus grown under high (20 W m-2) or low (5 W m-2) irradiancies of white light show all characteristics of sun or shade plants, respectively. When transferred to alternate light conditions, the cells adapt within 6 h. When cells grown under high irradiance of white light are transferred to red (683 nm) or blue (424 nm) light, they show characteristics similar to cells adapted to low or high irradiancies of white light, respectively. This adaptation to different wavelengths takes about 12 h. The underlying changes in the photosynthetic apparatus are discussed.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.