CONTROL OF EXCITATION TRANSFER IN PHOTOSYNTHESIS .I. LIGHT-INDUCED CHANGE OF CHLOROPHYLL A FLUORESCENCE IN PORPHYRIDIUM CRUENTUM

被引:490
作者
MURATA, N
机构
[1] Department of Biophysics and Biochemistry, Faculty of Science, University of Tokyo, Hongo, Tokyo
关键词
D O I
10.1016/0005-2728(69)90067-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The emission spectra of chlorophyll a in Porphyridium cruentum at liquid nitrogen temperature change on illumination of the sample before cooling. Preillumination of phycoerythrin decreases the yields of F684 and F695 and increases that of F-1. Pre-illumination of chlorophyll a does not significantly change the fluorescence yield. These facts indicate that the pre-illumination of pigment system II changes the efficiency of excitation transfer between chlorophyll a molecules. The effects of additional actinic illumination on the yield of F684 at room temperature are also examined. The actinic illumination of chlorophyll a has two opposing effects on the fluoresence yield, i.e., decrease and increase of fluorescence yield. The two effects can be distinguished by the difference in times of response towards the onset and end of actinic illumination. The former (fast, decreasing) effect can be explained in connection with the cooperation of the two pigment systems through the photosynthetic electron transport. The latter (slow, increasing) effect is thought to reflect the change in efficiency of excitation transfer, as mentioned above concerning the fluorescence yields at liquid nitrogen temperature. The presence of a light-induced control for the efficient utilization of the absorbed light energy in photosynthesis is suggested. © 1960.
引用
收藏
页码:242 / &
相关论文
共 30 条
[1]   ACTION SPECTRUM, KINETICS AND QUANTUM REQUIREMENT OF PHOSPHOPYRIDINE NUCLEOTIDE REDUCTION AND CYTOCHROME OXIDATION IN BLUE-GREEN ALGA ANACYSTIS NIDULANS [J].
AMESZ, J ;
DUYSENS, LNM .
BIOCHIMICA ET BIOPHYSICA ACTA, 1962, 64 (02) :261-+
[2]   FLUORESCENCE PROPERTIES OF PARTICLES OBTAINED BY DIGITONIN FRAGMENTATION OF SPINACH CHLOROPLASTS [J].
BOARDMAN, NK ;
THORNE, SW ;
ANDERSON, JM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1966, 56 (02) :586-&
[3]   ACTION SPECTRA FOR SENSITIZATION OF LIGHT EMISSION FROM MONOMERIC AND AGGREGATED CHLOROPHYLL AT PHYSIOLOGICAL AND LIQUID NITROGEN TEMPERATURES [J].
BRODY, SS ;
BRODY, M .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1961, 95 (03) :521-+
[4]   INDUCED CHANGES IN THE EFFICIENCY OF ENERGY TRANSFER IN PORPHYRIDUM-CRUENTUM .1. [J].
BRODY, SS ;
BRODY, M .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1959, 82 (01) :161-178
[5]  
BUTLER WL, 1963, PHOTOSYNTHETIC MECHA, P91
[7]  
DUYSENS L, 1952, THESIS UTRECHT
[8]  
DUYSENS L. N. M., 1963, P353
[9]   FUNCTION AND IDENTIFICATION OF 2 PHOTOCHEMICAL SYSTEMS IN PHOTOSYNTHESIS [J].
DUYSENS, LNM ;
AMESZ, J .
BIOCHIMICA ET BIOPHYSICA ACTA, 1962, 64 (02) :243-&
[10]   SOME FACTORS INFLUENCING THE LONG-WAVE LIMIT OF PHOTOSYNTHESIS [J].
EMERSON, R ;
CHALMERS, R ;
CEDERSTRAND, C .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1957, 43 (01) :133-143