Abstract:
:The redox potentials (E(composite function')) 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( composite function') 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.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Zhang Y,Nakamura A,Kuroiwa Y,Kato Y,Watanabe Tdoi
10.1016/j.febslet.2008.02.075subject
Has Abstractpub_date
2008-04-02 00:00:00pages
1123-8issue
7eissn
0014-5793issn
1873-3468pii
S0014-5793(08)00198-1journal_volume
582pub_type
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