Photomovement of the red alga Porphyridium cruentum (Ag.) Naegeli

1980 ◽  
Vol 128 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Hartwig Schuchart
Keyword(s):  
Red Alga ◽  
Porphyridium Cruentum

scholarly journals Stoichiometry of Photosystem I, Photosystem II, and Phycobilisomes in the Red Alga Porphyridium cruentum as a Function of Growth Irradiance

1989 ◽  
Vol 91 (3) ◽  
pp. 1179-1187 ◽  
Author(s):  
Francis X. Cunningham ◽  
Ronald J. Dennenberg ◽  
Laszlo Mustardy ◽  
Paul A. Jursinic ◽  
Elisabeth Gantt
Keyword(s):  
Photosystem Ii ◽  
Photosystem I ◽  
Red Alga ◽  
Porphyridium Cruentum ◽  
Growth Irradiance

Effects of Growth Irradiance on the Photosynthetic Apparatus of the Red Alga Porphyridium cruentum

1990 ◽  
pp. 3143-3146
Author(s):  
Francis X. Cunningham ◽  
Ronald J. Dennenberg ◽  
Laszlo Mustardy ◽  
Paul A. Jursinic ◽  
Elisabeth Gantt
Keyword(s):  
Photosynthetic Apparatus ◽  
Red Alga ◽  
Porphyridium Cruentum ◽  
Growth Irradiance

Studies on the Growth of the Red Alga Porphyridium cruentum

1963 ◽  
Vol 16 (3) ◽  
pp. 636-643 ◽  
Author(s):  
Raymond F. Jones ◽  
Henry L. Speer ◽  
Wendell Kury
Keyword(s):  
Red Alga ◽  
Porphyridium Cruentum

scholarly journals The Quantum Yield of Photosynthesis in Porphyridium cruentum, and the Role of Chlorophyll a in the Photosynthesis of Red Algae

1959 ◽  
Vol 43 (2) ◽  
pp. 251-264 ◽  
Author(s):  
Marcia Brody ◽  
Robert Emerson
Keyword(s):  
Quantum Yield ◽  
Red Algae ◽  
Photosynthetic Efficiency ◽  
Red Alga ◽  
Porphyridium Cruentum ◽  
Maximum Efficiency ◽  
Minor Role ◽  
Algal Groups ◽  
A Minor

Quantum yield measurements were made with the red alga Porphyridium cruentum, cultured so as to give different proportions of chlorophyll and phycobilins. Totally absorbing suspensions were used so that there was no uncertainty in the amount of energy absorbed. These measurements have shown that chlorophyll, in this alga, has a photosynthetic efficiency as high as in other algal groups, and higher than the phycobilins—at least at wave lengths shorter than about 650 mµ. Wave lengths longer than this are beyond the range of maximum efficiency of chlorophyll. Under specified conditions of temperature and supplementary light full efficiency may be extended to longer wave lengths. The results of these measurements have made it unnecessary to suppose that in red algae chlorophyll plays a minor role while the phycobilins are the photosynthetic sensitizers of primary importance.

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