Absorbance changes accompanying the fast fluorescence induction in the purple bacterium Rhodobacter sphaeroides

0356395 - BC 2012 RIV NL eng J - Článek v odborném periodiku
Bína, David - Litvín, Radek - Vácha, František
Absorbance changes accompanying the fast fluorescence induction in the purple bacterium Rhodobacter sphaeroides.
Photosynthesis Research. Roč. 105, č. 2 (2010), s. 115-121. ISSN 0166-8595. E-ISSN 1573-5079
Grant CEP: GA AV ČR IAA608170603
Výzkumný záměr: CEZ:AV0Z50510513
Klíčová slova: Photosynthesis * Charge separation * Membrane potential
Kód oboru RIV: CE - Biochemie
Impakt faktor: 2.410, rok: 2010

The authors present a study of the fluorescence and absorbance transients occurring in whole cells of purple nonsulfur bacterium Rhodobacter sphaeroides on the millisecond timescale under pulsed actinic illumination. The fluorescence induction curve is interpreted in terms of combination of effects of redox changes in the reaction center and the membrane potential. The results of this study support the view that the membrane potential act predominantly to increase the fluorescence yield. Advantages of the pulsed actinic illumination for study of the operation of the electron transport chain in vivo are discussed.
Trvalý link: http://hdl.handle.net/11104/0194925