Fluorescence induction of algae (Scenedesmus obliquus) as an indicator of photosynthetic activity
Oxygen electrode photosynthesis measurements on cultures of Scenedesmus obliquus were compared with chlorophyll fluorescence signals detected with a modulated pulse amplitude fluorometer. This system allows the application of the saturation pulse method, which reveals information in addition to that given by the standard Kautsky curves, and which allows work at steady state illumination. Several fluorescence parameters were compared to the oxygen evolution in order to clarify the fluorescence/photosynthetic activity relationships. Simultaneous measurements during the growing cycle of the algae and during their day/night rhythm seemed to prove that O(2-) methods can be replaced by the new fluorescence technique. The first results on the influence of the actinic light on the photosynthetic activity of algae are presented.
Bibliographic Reference: Paper presented: ASLO Summer Meeting 1991, Halifax, Nova Scotia (CA), June 10-13, 1991
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Record Number: 199110372 / Last updated on: 1994-12-02
Original language: en
Available languages: en