About: Cryoproective role of ribitol in Xanthoparmelia somloensis

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.springerlink.com/content/nx35234785238821/fulltext.pdf
Description	Thalli of Xanthoparmelia somloensis with natural content of polyols (control) and polyol free thalli (acetone rinsed) were used to study ribitol effects at low temperatures. Thalli segments were cultivated in ribitol concentration of 32 or 50 mM for 168 h at temperatures +5, 0, and minus 5 deg C. The chlorophyll fluorescence parameters (potential yield of photochemical reactions in PS 2 (variable to maximum fluorescence ratio, Fv/Fm), effective quantum yield of photochemical reactions in PS 2 (Yield PS2), and nonphotochemical quenching (NPQ) were monitored in 24h intervals using an imaging system. The effect of 32 mM ribitol on Fv/Fm and Yield PS2 was apparent only at minus 5 deg C, however, the effect was seen throughout the whole exposure. Surprisingly, 50 mM ribitol concentration treatment led to a decrease in Fv/Fm and Yield PS2 and to an increase in NPQ values at minus 5 deg C, while no change was observed at 0 deg C and +5 deg C. Acetone rinsing caused decrease of Fv/Fm, Yield PS2 and NPQ. Thalli of Xanthoparmelia somloensis with natural content of polyols (control) and polyol free thalli (acetone rinsed) were used to study ribitol effects at low temperatures. Thalli segments were cultivated in ribitol concentration of 32 or 50 mM for 168 h at temperatures +5, 0, and minus 5 deg C. The chlorophyll fluorescence parameters (potential yield of photochemical reactions in PS 2 (variable to maximum fluorescence ratio, Fv/Fm), effective quantum yield of photochemical reactions in PS 2 (Yield PS2), and nonphotochemical quenching (NPQ) were monitored in 24h intervals using an imaging system. The effect of 32 mM ribitol on Fv/Fm and Yield PS2 was apparent only at minus 5 deg C, however, the effect was seen throughout the whole exposure. Surprisingly, 50 mM ribitol concentration treatment led to a decrease in Fv/Fm and Yield PS2 and to an increase in NPQ values at minus 5 deg C, while no change was observed at 0 deg C and +5 deg C. Acetone rinsing caused decrease of Fv/Fm, Yield PS2 and NPQ. (en)
Title	Cryoproective role of ribitol in Xanthoparmelia somloensis Cryoproective role of ribitol in Xanthoparmelia somloensis (en)
skos:prefLabel	Cryoproective role of ribitol in Xanthoparmelia somloensis Cryoproective role of ribitol in Xanthoparmelia somloensis (en)
skos:notation	RIV/00216208:11310/09:10116640!RIV12-MSM-11310___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(KJB601630808)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Lipavská, Helena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	308591
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/09:10116640
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Trebouxia; low temperature; lichen thallus; fluorescence parameters; chlorophyll fluorescence imaging (en)
http://linked.open.../riv/klicoveSlovo	chlorophyll fluorescence imaging Trebouxia fluorescence parameters lichen thallus low temperature
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[8742B50D85B4]
http://linked.open...i/riv/nazevZdroje	Biologia Plantarum
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Effects of low and freezing temperatures on photosynthesis in lichen symbiotic algae affected by ribitol.
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	53
http://linked.open...iv/tvurceVysledku	Barták, Miloš Hájek, Josef Lipavská, Helena Smejkal, Lubomír Vaczi, Peter
http://linked.open...ain/vavai/riv/wos	000272118600013
issn	0006-3134
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s10535-009-0122-z
http://localhost/t...ganizacniJednotka	11310

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