Počet záznamů: 1

Spectral characteristic of fluorescence induction in a model cyanobacterium, Synechococcus sp. (PCC 7942)

  1. 1.
    0334596 - MBU-M 2010 RIV NL eng J - Článek v odborném periodiku
    Kaňa, Radek - Prášil, Ondřej - Komárek, Ondřej - Papageorgiou, G. C. - Govindjee, G.
    Spectral characteristic of fluorescence induction in a model cyanobacterium, Synechococcus sp. (PCC 7942).
    Biochimica Et Biophysica Acta-Bioenergetics. Roč. 1787, č. 10 (2009), s. 1170-1178 ISSN 0005-2728
    Grant CEP: GA ČR GP206/09/P094; GA ČR GA206/07/0917; GA AV ČR IAA608170603
    Výzkumný záměr: CEZ:AV0Z50200510; CEZ:AV0Z60870520
    Klíčová slova: fluorescence induction * cyanobacterium * PCC 7942
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 3.688, rok: 2009

    Newly developed method allowed as to measure spectral characteristic of fluorescence induction for a model organism, Synechococcus sp. (PCC 7942). Base on this new experimental approach, we have found that: (i) the main chlorophyll (Chl) a emission band around 685 nm (Photosystem (PS) II emission) exhibits typical fast (OPS) and slow (SMT) FI kinetics with both orange (622 nm) and blue (464 nm) excitation. (ii) Similar kinetics are exhibited for its far-red emission satellite band centered at 745 nm, where the PS II contribution predominates. (iii) A significant OPS-SMT-type kinetics of C-phycocyanin emission at 650 nm are observed with the blue light excitation. The induction of F650 was not caused by an admixture of the F685 fluorescence and thus our data show light-inducible and dark-reversible changes of phycobilin fluorescence in vivo
    Trvalý link: http://hdl.handle.net/11104/0179291