Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2050955 | FEBS Letters | 2008 | 6 Pages |
Abstract
The redox potentials (E∘′) of P700 in intact and diethyl ether-treated thylakoid membranes as well as native photosystem (PS) I particles from spinach and Thermosynechococcus elongatus have been measured by a spectroelectrochemistry with an error range of ±2–3 mV. Stepwise removal of antenna pigments by ether treatment caused distinct shifts of the E∘′ value with increasing degree of water saturation in ether; negatively from +471 to +428 mV for spinach, but positively from +423 to +436 mV for T. elongatus. Such a contrasting behavior is discussed by invoking the mode of action of ether on the microenvironments around P700.
Keywords
Related Topics
Life Sciences
Agricultural and Biological Sciences
Plant Science
Authors
Yanrong Zhang, Akimasa Nakamura, Yoshinori Kuroiwa, Yuki Kato, Tadashi Watanabe,