Blue radiation stimulates photosynthetic induction in Fagus sylvatica L

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F09%3A00338733" target="_blank" >RIV/67179843:_____/09:00338733 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61988987:17310/09:A1200W0R

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Blue radiation stimulates photosynthetic induction in Fagus sylvatica L

Popis výsledku v původním jazyce

This study was designed to test the hypothesis that the spectral composition of incident radiation can affect photosynthetic induction, since B photons (B; ?max = 455 nm) stimulate stomatal opening and are more effectively absorbed by leaves than R photons (R; ?max = 625 nm). Different stages of photosynthetic induction, primarily determined by the photo-modulation of Rubisco activity and stomata opening, were investigated in dark-adapted leaves of Fagus sylvatica transferred to saturating irradiance [800?mol(photon) m?2 s?1] at B/R ratios of 1/3, 1/1, or 3/1. Photosynthesis was induced faster by irradiance with a high B/R ratio (3/1). However, there were no differences in induction between leaves receiving equal (1/1) and low (1/3) B/R ratios. Electron transport was highly sensitive to radiation quality, exhibiting faster induction kinetics with increasing B/R ratio. In contrast, the kinetics of stomatal opening was independent of the spectral composition of incoming radiation.

Název v anglickém jazyce

Blue radiation stimulates photosynthetic induction in Fagus sylvatica L

Popis výsledku anglicky

This study was designed to test the hypothesis that the spectral composition of incident radiation can affect photosynthetic induction, since B photons (B; ?max = 455 nm) stimulate stomatal opening and are more effectively absorbed by leaves than R photons (R; ?max = 625 nm). Different stages of photosynthetic induction, primarily determined by the photo-modulation of Rubisco activity and stomata opening, were investigated in dark-adapted leaves of Fagus sylvatica transferred to saturating irradiance [800?mol(photon) m?2 s?1] at B/R ratios of 1/3, 1/1, or 3/1. Photosynthesis was induced faster by irradiance with a high B/R ratio (3/1). However, there were no differences in induction between leaves receiving equal (1/1) and low (1/3) B/R ratios. Electron transport was highly sensitive to radiation quality, exhibiting faster induction kinetics with increasing B/R ratio. In contrast, the kinetics of stomatal opening was independent of the spectral composition of incoming radiation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Photosynthetica

ISSN

0300-3604

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

000271672900010

EID výsledku v databázi Scopus

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