On the determination of QB-non-reducing photosystem II centers from chlorophyll a fluorescence induction.

Result code in 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>

Alternative codes found

RIV/61988987:17310/03:00000053

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

On the determination of QB-non-reducing photosystem II centers from chlorophyll a fluorescence induction.

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

<a href="/en/project/LN00A141" target="_blank" >LN00A141: Mechanism, ecophysiology and biotechnology of photosynthesis</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plant Science

ISSN

0168-9452

e-ISSN

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Volume of the periodical

164

Issue of the periodical within the volume

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Country of publishing house

IR - IRAN, ISLAMIC REPUBLIC OF

Number of pages

6

Pages from-to

665-670

UT code for WoS article

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EID of the result in the Scopus database

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