Přehled o publikaci
2016
Effects of controlled oxidative stress and uncouplers on primary photosynthetic processes in vegetative cells of Antarctic alga Zygnema sp.
KAKKOU, Christos; Miloš BARTÁK; Josef HÁJEK; Kateřina SKÁCELOVÁ; Jana HAZDROVÁ et. al.Basic information
Original name
Effects of controlled oxidative stress and uncouplers on primary photosynthetic processes in vegetative cells of Antarctic alga Zygnema sp.
Name in Czech
Vlivy řízeného oxidativního stresu a uncouplerů na primární fotosyntteické procesy antarktické řasy Zygnema sp.
Authors
KAKKOU, Christos (196 Cyprus, belonging to the institution); Miloš BARTÁK (203 Czech Republic, guarantor, belonging to the institution); Josef HÁJEK (203 Czech Republic, belonging to the institution); Kateřina SKÁCELOVÁ (203 Czech Republic, belonging to the institution) and Jana HAZDROVÁ (203 Czech Republic, belonging to the institution)
Edition
Czech Polar Reports, Brno, Masaryk University, 2016, 1805-0689
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
Botany
Country of publisher
Czech Republic
Confidentiality degree
is not subject to a state or trade secret
References:
RIV identification code
RIV/00216224:14310/16:00091592
Organization
Přírodovědecká fakulta – Repository – Repository
EID Scopus
2-s2.0-84995555353
Keywords (in Czech)
fluorescence chlorofylu, fotosystém II, vláknitá řasa, blokátory fotosyntézy
Keywords in English
chlorophyll fluorescence: PS II: alga fillamentous: photosynthesis blockers
Links
LM2010009, research and development project.
Changed: 3/9/2020 11:38, RNDr. Daniel Jakubík
In the original language
In our study, we present responses of Antarctic strain of filamentous alga Zygnema sp. collected at James Ross Island (Antarctica) to application of variuos uncouplers of pri-mary photosynthetic processes. We exposed the alga to different concentrations of nigericin, 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU), dithiothreitol (DTT), methyl viologen (MV) and hydrogen peroxide (H2O2) in order to test stability of photosystem II, involvement of non-photochemical quenching, and PS II functioning under combination of moderate light with particular uncoupler. Oxidative stress tolerance was tested by the combination of hydrogen peroxide (H2O2) and moderate light. Time courses of FV/FM, FPSII, NPQ and qF0 were investigated and particular effects of the above-specified chem-icals discussed. Moderate doses of uncouplers allowing partial recovery, and the doses causing full inhibition of PS II were specified.
In Czech
Byl studován vliv nigericinu, DCMU, DTT, MV a peroxidu vodíku na fotosynteticke procesy ve fotosystému II vláknité zelené řasy Zygnema sp. z Antarktidy.
