COMPARATIVE-STUDIES ON ELECTRON-TRANSFER IN PHOTOSYSTEM-II OF HERBICIDE-RESISTANT MUTANTS FROM DIFFERENT ORGANISMS

被引：53

作者：

ETIENNE, AL ^{[1
]}

DUCRUET, JM ^{[1
]}

AJLANI, G ^{[1
]}

VERNOTTE, C ^{[1
]}

机构：

[1] INRA,CEA,SERV BIOPHYS,GIF SUR YVETTE,FRANCE

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1990年 / 1015卷 / 03期

关键词：

Chlorophyll fluorescence; Electron transfer; Herbicide resistance; Photosystem II; Quinone acceptor; Thermoluminescence;

D O I：

10.1016/0005-2728(90)90076-G

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：

We have studied the electron transfer properties of Photosystem II using several techniques (fluorescence, oxygen emission and thermoluminescence measurements) in a series of herbicide-resistant mutants from widely different organisms. Five mutants of Synechocystis 6714, of which we have determined the D1 sequence, one mutant of Synechococcus 7942, one mutant of Chlamydomonas reinhardtii, a triazine-resistant biotype of Chenopodium album and their herbicide-susceptible controls were analyzed. Two mutants have an almost unimpaired Photosystem II electron transfer. For five mutants of the different organisms, the initial phase of the electron transfer Q-A to QB is unaltered but the electron transfer equilibrium between these two acceptors is displaced. In the Chlamydomonas-resistant mutant, the electron transfer from Q-A to QB is slowed down. © 1990.

引用

页码：435 / 440

页数：6

共 33 条

[1] MUTATION IN PHENOL-TYPE HERBICIDE RESISTANCE MAPS WITHIN THE PSBA GENE IN SYNECHOCYSTIS 6714 [J].