Vliv kyseliny abscisové nebo benzyladeninu na obsah pigmentů, fluorescenci chlorofylu a ultrastructuru chloroplastů během vodního stresu a po rehydrataci

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F06%3A00098517" target="_blank" >RIV/61389030:_____/06:00098517 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effects of abscisic acid or benzyladenine on pigment contents, chlorophyll fluorescence, and chloroplast ultrastructure during water stress and after rehydration

Popis výsledku v původním jazyce

With the aim to contribute to elucidation of the role of phytohormones in response of plants to adverse environmental conditions, seedlings of Phaseolus vulgaris, Nicotiana tabacum, Beta vulgaris, and Zea mays were immediately before imposition of waterstress supplied with water (control), 100 M abscisic acid (ABA), or 10 M N6-benzyladenine (BA). In all four species, contents of chlorophylls and carotenoids were markedly decreased during water stress and after rehydration only in plants pre-treated with water but not in those pre-treated with ABA or BA. Contents of pigments of xanthophyll cycle increased during water stress more in plants pre-treated with ABA or BA than in those pre-treated with water, but the degree of their deepoxidation was highestin the later. Similarly, the efficiency of photosystem 2, determined as variable to maximal chlorophyll fluorescence ratio, was not markedly decreased in bean plants pre-treated with ABA or BA in contrast to those pre-treated with water.

Název v anglickém jazyce

Effects of abscisic acid or benzyladenine on pigment contents, chlorophyll fluorescence, and chloroplast ultrastructure during water stress and after rehydration

Popis výsledku anglicky

With the aim to contribute to elucidation of the role of phytohormones in response of plants to adverse environmental conditions, seedlings of Phaseolus vulgaris, Nicotiana tabacum, Beta vulgaris, and Zea mays were immediately before imposition of waterstress supplied with water (control), 100 M abscisic acid (ABA), or 10 M N6-benzyladenine (BA). In all four species, contents of chlorophylls and carotenoids were markedly decreased during water stress and after rehydration only in plants pre-treated with water but not in those pre-treated with ABA or BA. Contents of pigments of xanthophyll cycle increased during water stress more in plants pre-treated with ABA or BA than in those pre-treated with water, but the degree of their deepoxidation was highestin the later. Similarly, the efficiency of photosystem 2, determined as variable to maximal chlorophyll fluorescence ratio, was not markedly decreased in bean plants pre-treated with ABA or BA in contrast to those pre-treated with water.

Druh

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

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA522%2F04%2F0549" target="_blank" >GA522/04/0549: Vliv exprese genu pro zeatin O-glukosyltransferázu z fazolu na toleranci vůči vodnímu stresu u rostlin tabáku</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2006

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

44

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

606-614

Kód UT WoS článku

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EID výsledku v databázi Scopus

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