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@article{1386023, author = {Marečková, Michaela and Barták, Miloš}, article_location = {Brno}, article_number = {1}, doi = {http://dx.doi.org/10.5817/CPR2017-1-8}, keywords = {chlorophyll fluorescence; fast kinetics; OJIP; K-step; James Ross Island; temperature stress}, language = {eng}, issn = {1805-0689}, journal = {Czech Polar Reports}, title = {Short-term responses of primary processes in PS II to low temperature are sensitively indicated by fast chlorophyll fluorescence kinetics in Antarctic lichen Dermatocarpon polyphyllizum}, url = {http://www.sci.muni.cz/CPR/13cislo/Mareckova-web.pdf}, volume = {7}, year = {2017} }
TY - JOUR ID - 1386023 AU - Marečková, Michaela - Barták, Miloš PY - 2017 TI - Short-term responses of primary processes in PS II to low temperature are sensitively indicated by fast chlorophyll fluorescence kinetics in Antarctic lichen Dermatocarpon polyphyllizum JF - Czech Polar Reports VL - 7 IS - 1 SP - 74-82 EP - 74-82 PB - Muni Press SN - 18050689 KW - chlorophyll fluorescence KW - fast kinetics KW - OJIP KW - K-step KW - James Ross Island KW - temperature stress UR - http://www.sci.muni.cz/CPR/13cislo/Mareckova-web.pdf L2 - http://www.sci.muni.cz/CPR/13cislo/Mareckova-web.pdf N2 - In this study, we investigated the effects of low temperature on the fast chlorophyll fluo-rescence transient (OJIP) and OJIP-derived parameters in chlorolichen Dermatocarpon polyphyllizum expossed to a gradually decreasing temperature (22°C, 18°C, 14°C, 12°C, 10°C, 7°C and 4°C). The segments of lichen thalli were exposed to a certain temperature either in dark- and light-adapted state for 10 minutes in order to evaluate the effects on chlorophyll fluorescence parameters. The initial photochemical phase of the transient (O-J) due to reduction of the primary quinone acceptor (QA) was found temperature dependent. The K-step was apparent for the samples measured at the temperature above 12°C, but not below 10oC in light-adapted lichen thalli. ER -
MAREČKOVÁ, Michaela a Miloš BARTÁK. Short-term responses of primary processes in PS II to low temperature are sensitively indicated by fast chlorophyll fluorescence kinetics in Antarctic lichen Dermatocarpon polyphyllizum. \textit{Czech Polar Reports}. Brno: Muni Press, 2017, roč.~7, č.~1, s.~74-82. ISSN~1805-0689. Dostupné z: https://dx.doi.org/10.5817/CPR2017-1-8.
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