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The light-induced free radical ESR signals in chromatophores and reaction center preparation of R. rubrum were studied. It has been shown that the properties of the signals in both systems were strictly identical. At the microwave powers higher than 10 mW the ESR signal at g approximatley 2.00 is saturated and its asymmetry arises. Changes of the ESR signal shape may be explained by the superposition of P870+ signal with that from the ubisemiquinone. Addition of ferricyanide to chromatophores induces in the dark a new ESR signal characterized by a linewidth of 4.5 Oe which presumably arises from the antenna bacteriochlorophyll aggregates, because this signal is absent in the reaction center preparations.
I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
February 1952,
Nature,
I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
January 1976,
Mikrobiologiia,
I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
April 1967,
Proceedings of the National Academy of Sciences of the United States of America,
I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
March 1964,
Journal of biochemistry,
I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
December 1973,
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I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
August 1976,
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I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
January 1982,
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I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
January 1974,
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I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
January 1960,
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I A Smirnova, and
A N Tikhonov, and
A A Konstantinov, and
E K Ruuge
February 1972,
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