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Spectral properties of chlorophyll and photochemical activity of photosystems in chlamydomonas reinhardii pigmented mutants


, : Spectral properties of chlorophyll and photochemical activity of photosystems in chlamydomonas reinhardii pigmented mutants. Fiziologiya Rastenii (Moscow) 25(3): 500-509

As was found for a large group of pigmented mutants of C. reinhardii, the presence of native chlorophyll a forms does not depend on the quantitative accumulation of pigments and does not correlate with the content of chlorophyll b. Changes in the accumulation of chlorophyll b modify the intensity, but not the pattern, of the fluorescence spectrum for chlorophyll a, and have no effect on the photosynthetic activity of the chloroplast membranes. The absence, or a very low content, of the long-wavelength forms of chlorophyll a (689, 698 and 703 nm), is accompanied with the intensification of short-wavelength (690 nm) fluorescence of chlorophyll and the decrease in long-wavelength (718 nm) fluorescence. The ratio between the amounts of chlorophylls a and b, and the pattern of low-temperature fluorescence spectra for chlorophyll, do not correlate with the number and activity of the reaction centers of photosystems I and II. These critera reflect the state of the light-absorbing complex and chlorophyll a.

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Related references

Ladygin, V.; Kostikov, A., 1978: Spectral characteristics of chlorophyll and photochemical activity of photosystems of Chlamydomonas pigmented mutants

Ladygin, V.; Kostikov, A., 1978: Spectral properties of chlorophyll and photochemical activity of photosystems in Chlamydomonas pigment mutants. Soviet plant physiology: (Transl 1978), 25 (3, pt 1) 391-398

Ladygin V.G.; Kostikov A.P., 1978: Spectral properties of chlorophyll and photochemical activity of photosystems in chlamydomonas reinhardi pigment mutants. Soviet Plant Physiology 25(3 PART 1): 391-398

Ladygin V.G., 1984: Activity of photosystems and spectral properties of chlorophyll of double chlorophyll b deficient chlamydomonas reinhardii mutants with inactive photosystem i or photosystem ii. Double acetate-dependent light-green mutants of the unicellular green alga C. reinhardii with inactive PS-I [photosystem I] or PS-II [photosystem II] were used in the experiment. The mutants were obtained after 137Cs .gamma.-irradiation (20 Kr) of...

L.Dygin V.G., 1979: Spectral forms of chlorophyll of mutants of chlamydomonas reinhardii with inactive photosystems. Biophysics (English Translation of Biofizika) 24(2): 262-268

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Gusev, M.; Zhivopistseva, I.; Nikitina, K.; Abros'-Kina, L.; Vorob'-Eva, L., 1980: Comparative investigation of the spectral properties of chlorophyll and activity of certain enzymes of oxidative metabolism in mutants of Chlamydomonas reinhardii. Soviet plant physiology 27(1): 56-60

Ladygin V.G., 1984: Photosystem activity and spectral properties of chlorophyll in double chlorophyll b deficient chlamydomonas reinhardii mutants with inactive photosystem i. Soviet Plant Physiology 31(1 PART 2): 83-91

Ladygin, V.; Klimov, V.; Shuvalov, V.; Tageeva, S., 1976: Characteristics of photochemical reaction in three types of Chlamydomonas reinhardii mutants with inactive photosystems

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