The influence of low-temperature on the photochemical activity of chloroplasts and activity of antioxidant enzymes in maize leaves

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A00012418" target="_blank" >RIV/00216208:11310/09:00012418 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/09:00337492

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The influence of low-temperature on the photochemical activity of chloroplasts and activity of antioxidant enzymes in maize leaves

Popis výsledku v původním jazyce

Effects of low temperature on activities of photosystems 1 and 2 and antioxidant enzymes in leaves of maize inbred and hybrid genotypes were studied. Marked decrease of PS 2 activity due to chill was observed in majority of genotypes/generations. The GR,APX and SOD activities highly increased, whereas activity of CAT showed lesser changes depending on the genotype/generation. Higher sensitivity of line 2013 to stress was transmitted to next generations when this line was used as the maternal parent. The intraspecific variability in photosynthetic and antioxidant parameters was caused mostly by dominance, but level of expression of this effect often changed after stress and was probably cause of increase in positive F1 heterosis. Other genetic effects(additivity, additive or dominant maternal effect) were also found to contribute to intraspecific variability in parameters. The dominant maternal effects possibly played important role in maintaining positive heterosis in F2 generation.

Název v anglickém jazyce

The influence of low-temperature on the photochemical activity of chloroplasts and activity of antioxidant enzymes in maize leaves

Popis výsledku anglicky

Effects of low temperature on activities of photosystems 1 and 2 and antioxidant enzymes in leaves of maize inbred and hybrid genotypes were studied. Marked decrease of PS 2 activity due to chill was observed in majority of genotypes/generations. The GR,APX and SOD activities highly increased, whereas activity of CAT showed lesser changes depending on the genotype/generation. Higher sensitivity of line 2013 to stress was transmitted to next generations when this line was used as the maternal parent. The intraspecific variability in photosynthetic and antioxidant parameters was caused mostly by dominance, but level of expression of this effect often changed after stress and was probably cause of increase in positive F1 heterosis. Other genetic effects(additivity, additive or dominant maternal effect) were also found to contribute to intraspecific variability in parameters. The dominant maternal effects possibly played important role in maintaining positive heterosis in F2 generation.

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%2F01%2F0846" target="_blank" >GA522/01/0846: Heteróze ve fotosyntetických charakteristikách kukuřice pěstované při nízkých teplotách: její genetická a fyziologická podstata</a><br>

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

Biologia Plantarum

ISSN

0006-3134

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000271748300011

EID výsledku v databázi Scopus

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