Abstract
Neither an over-all deficiency of chlorophyll, nor an increased enzymatic capacity for maximal rates, nor an unusual lamellar structure was found to change the number of quanta required for the evolution of one molecule of oxygen in healthy aurea mutants of tobacco. The average minimal quantum number remains 10 (efficiency 0.1) as in many algae and typical higher plants. Most of the time the optimal efficiency depends on the availability of some far-red radiation, particularly in the blue region of the spectrum where blue light alone is rather inefficient. These results fit an explanation offered earlier in connection with the hydrogen or acetate photometabolism of algae in far-red light.
Full Text
The Full Text of this article is available as a PDF (837.1 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BISHOP N. I., GAFFRON H. Photoreduction at lambda 705 millimicrons in adapted algae. Biochem Biophys Res Commun. 1962 Aug 31;8:471–476. doi: 10.1016/0006-291x(62)90299-1. [DOI] [PubMed] [Google Scholar]
- BISHOP N. I. The photometabolism of glucose by an hydrogen-adapted alga. Biochim Biophys Acta. 1961 Aug 5;51:323–332. doi: 10.1016/0006-3002(61)90173-1. [DOI] [PubMed] [Google Scholar]
- Emerson R., Chalmers R., Cederstrand C. SOME FACTORS INFLUENCING THE LONG-WAVE LIMIT OF PHOTOSYNTHESIS. Proc Natl Acad Sci U S A. 1957 Jan 15;43(1):133–143. doi: 10.1073/pnas.43.1.133. [DOI] [PMC free article] [PubMed] [Google Scholar]
- FRENCH C. S., YOUNG V. K. The fluorescence spectra of red algae and the transfer of energy from phycoerythrin to phycocyanin and chlorophyll. J Gen Physiol. 1952 Jul;35(6):873–890. doi: 10.1085/jgp.35.6.873. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rowley D. Phagocytosis and immunity. The central role of phagocytosis in immune reactions. Experientia. 1966 Jan 15;22(1):1–5. [PubMed] [Google Scholar]
- Schmid G., Gaffron H. Chloroplast structure and the photosynthetic unit. Brookhaven Symp Biol. 1966;19:380–392. [PubMed] [Google Scholar]
- WIESSNER W., GAFFRON H. ROLE OF PHOTOSYNTHESIS IN THE LIGHT-INDUCED ASSIMILATION OF ACETATE BY CHLAMYDOBOTRYS. Nature. 1964 Feb 15;201:725–726. doi: 10.1038/201725a0. [DOI] [PubMed] [Google Scholar]
- WIESSNER W. QUANTUM REQUIREMENT FOR ACETATE ASSIMILATION AND ITS SIGNIFICANCE FOR QUANTUM MEASUREMENTS IN PHOTOPHOSPHORYLATION. Nature. 1965 Jan 2;205:56–57. doi: 10.1038/205056a0. [DOI] [PubMed] [Google Scholar]
- Witt H. T., Rumberg B., Schmidt-Mende P., Siggel U., Skerra B., Vater J., Weikard J. On the analysis of photosynthesis by flashlight techniques. Angew Chem Int Ed Engl. 1965 Oct;4(10):799–819. doi: 10.1002/anie.196507991. [DOI] [PubMed] [Google Scholar]