THE INFLUENCE OF ELEVATED ATMOSPHERIC CARBON DIOXIDE ON THE DIEL REGULATION OF THE PHOTOSYNTHETIC ACTIVITY IN INDIVIDUAL CELLS OF THE MARINE CYANOBACTERIUM TRICHODESMIUM

0081604 - MBÚ 2007 RIV SIGLE FR eng C - Conference Paper (international conference)
Grígel, Juraj - Šetlíková, Eva - Šetlík, Ivan - Levitan, O. - Berman-Frank, I. - Prášil, Ondřej
THE INFLUENCE OF ELEVATED ATMOSPHERIC CARBON DIOXIDE ON THE DIEL REGULATION OF THE PHOTOSYNTHETIC ACTIVITY IN INDIVIDUAL CELLS OF THE MARINE CYANOBACTERIUM TRICHODESMIUM.
[VLIV ZVÝŠENÉ KONCENTRACE CO2 V ATMOSFÉŘE NA REGULACI DENNÍCH ZMĚN FOTOSYNTÉZY JENDOTLIVÝCH BUNĚK U MOŘSKÉ SINICE TRICHODESMIUM.]
International Symposium on phototrophic prokaryotes /12./. Pau: Verlag, 2006, s. 134-134.
[International Symposium on phototrophic prokaryotes /12./. Pau (FR), 27.08.2006-01.09.2006]
R&D Projects: GA MŠMT 1P05ME824; GA MŽP SL/1/6/04
Institutional research plan: CEZ:AV0Z50200510
Keywords : trichodesmium * cell
Subject RIV: EE - Microbiology, Virology

Here we used the FKM technique to follow the diel courses of photosynthetic regulation on the single-cell level. Photosynthetic performance was assayed by changes in the parameters of chlorophyll variable fluorescence of individual cells. CO2 concentration influences the regulation of photosynthesis on the level of individual cells as judged by shifts in the timing and magnitude of appearance of cells with high intrinsic fluorescence yield (so called "bright cells")

S využitím techniky FKM (fluorescenčního kinetického mikroskopu) jsme sledovali denní změny fotosyntézy jednotlivých buněk mořské sinice Trichodesmium. Pozorovali jsme, jak koncentrace CO2 ovlivňuje změny denních průběhů maxim variabilní fluorescence a z toho jsme usoudili, že CO2 ovlivňuje regulaci fotosyntézy a její heterogenitu v populaci buněk
Permanent Link: http://hdl.handle.net/11104/0145419