2005
Changes in glutathione and xanthophyll cycle pigments in high light-stressed lichens Umbilicaria antarctica and Lasallia pustulata
VRÁBLÍKOVÁ, Hana, Miloš BARTÁK a Astrid WÖNISCHZákladní údaje
Originální název
Changes in glutathione and xanthophyll cycle pigments in high light-stressed lichens Umbilicaria antarctica and Lasallia pustulata
Název česky
Zmeny v glutathionu a pigmentech xantofyloveho cycklu v lisejnicich Umbilicaria antarctica a Lasallia pustulata vystavenym pusobeni nadmerne ozarenosti
Název anglicky
Changes in glutathione and xanthophyll cycle pigments in high light-stressed lichens Umbilicaria antarctica and Lasallia pustulata
Autoři
VRÁBLÍKOVÁ, Hana (203 Česká republika, garant), Miloš BARTÁK (203 Česká republika) a Astrid WÖNISCH (40 Rakousko)
Vydání
Journal of Photochemistry and Photobiology B: biology, Elsevier, 2005, 1011-1344
Další údaje
Jazyk
čeština
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.597
Kód RIV
RIV/00216224:14310/05:00012376
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000228202800004
Klíčová slova anglicky
High light; Glutathione; Zeaxanthin; Non-photochemical quenching; Photoinhibition; Lichens
Změněno: 26. 6. 2009 20:04, Mgr. Hana Cempírková, Ph.D.
V originále
Hydrated thalli of two lichen species Umbilicaria antarctica and Lasallia pustulata were exposed to high light (1800 umol m-2 s-1) for 30 min. High light exposure led to a decrease of total glutathione in both species, while de-epoxidation state of xanthophyll cycle pigments and non-photochemical quenching increased. In the subsequent recovery, the values of de-epoxidation state of xanthophyll cycle pigments decreased towards initial values. Glutathione (GSH) was resynthetised slowly. In conclusion, zeaxanthin-related protection is probably more involved than GSH-related protection in short-term response to high light stress in U. antarctica and L. pustulata. Faster recovery from photoinhibition in L. pustulata than U. antarctica is mainly due to faster conversion of zeaxanthin to violaxanthin and larger GSH pool of former species.
Anglicky
Hydrated thalli of two lichen species Umbilicaria antarctica and Lasallia pustulata were exposed to high light (1800 umol m-2 s-1) for 30 min. High light exposure led to a decrease of total glutathione in both species, while de-epoxidation state of xanthophyll cycle pigments and non-photochemical quenching increased. In the subsequent recovery, the values of de-epoxidation state of xanthophyll cycle pigments decreased towards initial values. Glutathione (GSH) was resynthetised slowly. In conclusion, zeaxanthin-related protection is probably more involved than GSH-related protection in short-term response to high light stress in U. antarctica and L. pustulata. Faster recovery from photoinhibition in L. pustulata than U. antarctica is mainly due to faster conversion of zeaxanthin to violaxanthin and larger GSH pool of former species.
Návaznosti
| GA522/03/0754, projekt VaV |
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| MSM 143100007, záměr |
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