Počet záznamů: 1

Enhanced thermal stability of the thylakoid membranes from spruce. A comparison with selected angiosperms

SYSNO ASEP	0467431
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Enhanced thermal stability of the thylakoid membranes from spruce. A comparison with selected angiosperms
Tvůrce(i)	Karlický, Václav (UEK-B)_{ORCID, RID, SAI} Kurasová, Irena (UEK-B) Ptáčková, B. (CZ) Večeřová, Kristýna (UEK-B)_{RID, SAI, ORCID} Urban, Otmar (UEK-B)_{RID, ORCID, SAI} Špunda, Vladimír (UEK-B)_{ORCID, SAI, RID}
Zdroj.dok.	Photosynthesis Research. - : Springer - ISSN 0166-8595 Roč. 130, 1-3 (2016), s. 357-371
Poč.str.	15 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	Norway spruce ; Thermal stability ; Circular dichroism ; Photosystem II organization ; Thylakoid membrane
Vědní obor RIV	ED - Fyziologie
CEP	LO1415 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	GA13-28093S GA ČR - Grantová agentura ČR
Výzkumná infrastruktura	CzeCOS II - 90061 - Ústav výzkumu globální změny AV ČR, v. v. i.
Institucionální podpora	RVO:67179843 - RVO:67179843
UT WOS	000385248300029
EID SCOPUS	84966289965
DOI	10.1007/s11120-016-0269-3
Anotace	Recently, we have found that thermal stability of photosystem II (PSII) photochemistry in spruce needles is higher than in other plants (barley, beech) cultivated under the same temperatures. In this work, temperature dependences of various characteristics of PSII organization were studied in order to obtain complex information on the thermal stability of PSII function and organization in spruce. Temperature dependency of circular dichroism spectra revealed by about 6 A degrees C higher thermal stability of macrodomain organization in spruce thylakoid membranes in comparison with Arabidopsis and barley ones; however, thermal disintegration of light-harvesting complex of PSII did not significantly differ among the species studied. These results thus indicate that thermal stability of PSII macro-organization in spruce thylakoid membranes is enhanced to a similar extent as thermal stability of PSII photochemistry. Clear-native polyacrylamide gel electrophoresis of preheated thylakoids demonstrated that among the separated pigment-protein complexes, only PSII supercomplexes (SCs) revealed considerably higher thermal stability in spruce thylakoids as compared to Arabidopsis and barley ones. Hence we suggest that higher thermal stability of PSII macro-organization of spruce is influenced by the maintenance of PSII SCs in the thylakoid membrane. In addition, we discuss possible effects of different PSII organizations and lipid compositions on the thermal stability of spruce thylakoid membranes.
Pracoviště	Ústav výzkumu globální změny
Kontakt	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Rok sběru	2017

Počet záznamů: 1