77K emission spectroscopy in phytoplankton ecophysiology

0306888 - MBÚ 2008 RIV CZ eng C - Conference Paper (international conference)
Prášil, Ondřej
77K emission spectroscopy in phytoplankton ecophysiology.
[Nízkoteplotní emisní spektroskopie v ekofyziologii fytoplanktonu.]
Aquafluo - Chlorophyll Fluorescence in Aquatic Sciences Meeting. Nové Hrady: Springer, 2007, s. 23-23.
[Aquafluo - Chlorophyll Fluorescence in Aquatic Sciences Meeting. Nové Hrady (CZ), 28.05.2007-01.06.2007]
R&D Projects: GA AV ČR 1QS500200570
Institutional research plan: CEZ:AV0Z50200510
Keywords : photosynthesis * fytoplankton * nutriet stress
Subject RIV: EE - Microbiology, Virology

Low temperature (77K) emission spectroscopy is standard techniques of photosynthesis research. Emission spectroscopy provides wealth of information about both photosystems, their pigment composition, relative activity and stoichiometry and has been successfully applied in stress physiology. In this talk I will discuss examples of the use of portable versions of spectrofluorometer. Specifically, I will show that 77K emission spectra of phytoplankton from oligotrophic HNLC areas of subtropical gyres contain information that can be used as marker of iron limitation and provide clues about mechanisms of observed high intrinsic fluorescence yield in these areas

Cílem přednášky je seznámit posluchače s principy nízkoteplotní emisní spektroskopie a s jejími aplikacemi v ekofyziologii fytoplanktonu, zejména při studiu nutričních stresů
Permanent Link: http://hdl.handle.net/11104/0159791