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Biophysical Journal 1: 91-97 (1960)
© 1960 the Biophysical Society

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Inhibition of Photosynthesis in Certain Algae by Extreme Red Light

Govindjee, Eugene Rabinowitch and Jan B. Thomas

ABSTRACT

This paper shows that in Porphyridium cruentum and in Chlorella pyrenoidosa (but apparently not in Anacystis nidulans) "extreme red" light (> 720 mµ) can inhibit photosynthesis produced by "far red" light (up to 720 mµ). From the action spectrum of this phenomenon, it appears that an unknown pigment with an absorption band around 745 mµ must be responsible for it.






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Copyright © 1960 by the Biophysical Society.