EXCRETION OF GLYCOLIC ACID BY ALGAE DURING PHOTOSYNTHESIS
نویسندگان
چکیده
منابع مشابه
Excretion of glycolic acid by algae during photosynthesis.
Although pure cultures of algae, in nutrient solution, have been used extensively in research on photosynthesis, the excretion of products into the medium has not been reported, despite their possible importance in the physiology and biochemistry of such cultures. The present investigation with the Cl4 tracer has revealed a significant, and apparently functional, secretion of glycolic acid by C...
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Chlorella pyrenoidosa were allowed to photosynthesize for short periods of time in the presence of (14)CO(2) and HTO. Analysis of tritium and (14)C labeling of photosynthetic intermediate compounds showed that the T/(14)C ratio of glycolic acid was comparable to that of intermediate compounds of the photosynthetic carbon reduction cycle when photosynthesis was performed in nearly 100% oxygen an...
متن کاملPhotosynthesis and photorespiration in algae.
The CO(2) exchange of several species of fresh water and marine algae was measured in the laboratory to determine whether photorespiration occurs in these organisms. The algae were positioned as thin layers on filter paper and the CO(2) exchange determined in an open gas exchange system. In either 21 or 1% O(2) there was little difference between (14)CO(2) and (12)CO(2) uptake. Apparent photosy...
متن کاملInhibition of Photosynthesis in Some Algae by Extreme-Red Light.
Photosynthesis produced by far-red light (about 700 mmicro) is reversibly inhibited in some algae by extreme-red light ( approximately 750 mmicro).
متن کاملInhibition of Photosynthesis in Certain Algae by Extreme Red Light.
This paper shows that in Porphyridium cruentum and in Chlorella pyrenoidosa (but apparently not in Anacystis nidulans) "extreme red" light (> 720 mmu) can inhibit photosynthesis produced by "far red" light (up to 720 mmu). From the action spectrum of this phenomenon, it appears that an unknown pigment with an absorption band around 745 mmu must be responsible for it.
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1956
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(20)89946-3