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Publikační činnost

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Typ záznamu:	článek v odborném periodiku (J)
Domácí pracoviště:	Katedra fyziky (31300)
Název:	Analysis of qualitative contribution of assimilatory and non-assimilatory de-excitation processes to adaptation pf photosynthetic apparatus of barley plants to high irradiance
Citace	Kurasová, I., Čajánek, M., Kalina, J. a Špunda, V. Analysis of qualitative contribution of assimilatory and non-assimilatory de-excitation processes to adaptation pf photosynthetic apparatus of barley plants to high irradiance. Photosynthetica. 2001, roč. 38, s. 513-519. ISSN 0300-3604.

Podnázev
Rok vydání:	2001
Obor:	Biofyzika
Kód ISSN:	0300-3604
Oficiální název periodika:	Photosynthetica
Stát vydavatele periodika:	Nizozemsko
Svazek periodika:	Neuveden
Číslo periodika v rámci svazku:	4
Číslo článku:
Ročník:	38
Počet stran článku:
Strana od:	513
Strana do:	519
Kód UT WoS:
EID:
Poddruh recenzovaného článku:	Článek v impaktovaném časopise (Jimp)

Klíčová slova anglicky:	chlorophyll fluorescence;Hordeum vulgare;non-radiative dissipation;non-assimilatory electron transports;photosynthetic oxygen evolution.
Popis v původním jazyce:	The adaptation of barley (Hordeum vulgare L. cv. Akcent) plants to low (LI, 50 umol m -2 s-1) and high (HI, 1000 umol m-2 s-1) growth irradiances was studied using the simultaneous measurements of the photosynthetic oxygen evolution andchlorophyll a (Chl a) fluorescence at room temperature. If measured under ambient CO2 concentration, neither increase of the oxygen evolution rate (P) nor enhancement of non-radiative dissipation of the absorbed excitationenergy within photosystem 2 (PS2) (determined as non-photochemical quenching of Chl a fluorescence, NPQ) were observed for HI plants compared with LI plants. Nevertheless, the HIplants exhibited a significantly higher proportion of QA in oxidised state (estimated from photochemical quenching of Chl a fluorescence, qp), by 49-102% at irradiances above 200 umol m-2 s-1...
Popis v anglickém jazyce:	The adaptation of barley (Hordeum vulgare L. cv. Akcent) plants to low (LI, 50 umol m -2 s-1) and high (HI, 1000 umol m-2 s-1) growth irradiances was studied using the simultaneous measurements of the photosynthetic oxygen evolution andchlorophyll a (Chl a) fluorescence at room temperature. If measured under ambient CO2 concentration, neither increase of the oxygen evolution rate (P) nor enhancement of non-radiative dissipation of the absorbed excitationenergy within photosystem 2 (PS2) (determined as non-photochemical quenching of Chl a fluorescence, NPQ) were observed for HI plants compared with LI plants. Nevertheless, the HIplants exhibited a significantly higher proportion of QA in oxidised state (estimated from photochemical quenching of Chl a fluorescence, qp), by 49-102% at irradiances above 200 umol m-2 s-1...

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R01:	RIV/61988987:17310/01:00000023

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