On the determination of QB-non-reducing photosystem II centers from chlorophyll a fluorescence induction.
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001532" target="_blank" >RIV/61989592:15410/03:00001532 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61988987:17310/03:00000053
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
On the determination of QB-non-reducing photosystem II centers from chlorophyll a fluorescence induction.
Popis výsledku v původním jazyce
The relative height of the so called Fpl ('plateau') appearing between the O and P steps in the initial chlorophyll a fluorescence rise (FR) under low exciting light, is frequently used for a determination of the relative amount of QB-non-reducing photosystem II centers ([PSII-QB-non]rel). On the basis of theoretical approach it has been already suggested that the Fpl level can be influenced, among others, by the intensity of exciting light. In this contribution we present a calculation of [PSII-QB-non]rel from the FRs measured at different intensities of exciting light (2 - 115 micro mol photons m-2 s-1). We have found that the higher intensity of exciting light, the higher is the estimation of [PSII-QB-non]rel (8 - 45%); thus the numerical expressionof [PSII-QB-non]rel using the Fpl level in the FR is not plausible. Our experimental results were also successfully simulated by a simple mathematical model. We recommend to use as low intensity of exciting light as possible for an estima
Název v anglickém jazyce
On the determination of QB-non-reducing photosystem II centers from chlorophyll a fluorescence induction.
Popis výsledku anglicky
The relative height of the so called Fpl ('plateau') appearing between the O and P steps in the initial chlorophyll a fluorescence rise (FR) under low exciting light, is frequently used for a determination of the relative amount of QB-non-reducing photosystem II centers ([PSII-QB-non]rel). On the basis of theoretical approach it has been already suggested that the Fpl level can be influenced, among others, by the intensity of exciting light. In this contribution we present a calculation of [PSII-QB-non]rel from the FRs measured at different intensities of exciting light (2 - 115 micro mol photons m-2 s-1). We have found that the higher intensity of exciting light, the higher is the estimation of [PSII-QB-non]rel (8 - 45%); thus the numerical expressionof [PSII-QB-non]rel using the Fpl level in the FR is not plausible. Our experimental results were also successfully simulated by a simple mathematical model. We recommend to use as low intensity of exciting light as possible for an estima
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BO - Biofyzika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LN00A141" target="_blank" >LN00A141: Mechanismus, ekofyziologie a biotechnologie fotosyntézy</a><br>
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2003
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Plant Science
ISSN
0168-9452
e-ISSN
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Svazek periodika
164
Číslo periodika v rámci svazku
N
Stát vydavatele periodika
IR - Íránská islámská republika
Počet stran výsledku
6
Strana od-do
665-670
Kód UT WoS článku
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EID výsledku v databázi Scopus
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