RELATIONSHIP BETWEEN THE LIFETIME AND YIELD OF THE 735 NM FLUORESCENCE OF CHLOROPLASTS AT LOW-TEMPERATURES

被引:58
作者
BUTLER, WL
TREDWELL, CJ
MALKIN, R
BARBER, J
机构
[1] ROYAL INST, DAVY FARADAY RES LAB, LONDON W1X 4BS, ENGLAND
[2] UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BOT, LONDON SW7 2AZ, ENGLAND
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
(Chloroplast); Chlorophyll; Fluorescence emission; Hepes; N-2-hydroxyethylpiperazine-N′-2-ethanesulfonic acid; Photosystem; 1; Reaction center;
D O I
10.1016/0005-2728(79)90208-1
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 lifetime and relative yield of the 735 nm fluorescence of [pea] chloroplasts, over a range of low temperatures (-60 to -196.degree. C) where the yield of fluorescence changes markedly, were directly proportional. Apparently the species of chlorophyll responsible for the 735 nm fluorescence, C-705, is present over the entire temperature range but is less fluorescent at the higher temperatures because of greater energy transfer to P-700. Attempts to measure the rise-time of the 735 nm fluorescence at -196.degree. C indicated that the rise-time is less than 50 ps.
引用
收藏
页码:309 / 315
页数:7
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