Does a terminal drought tolerance QTL contribute to differences in ROS scavenging enzymes and photosynthetic pigments in pearl millet exposed to drought?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10081164" target="_blank" >RIV/00216208:11310/11:10081164 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0098847210002261" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0098847210002261</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envexpbot.2010.11.001" target="_blank" >10.1016/j.envexpbot.2010.11.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Does a terminal drought tolerance QTL contribute to differences in ROS scavenging enzymes and photosynthetic pigments in pearl millet exposed to drought?

Popis výsledku v původním jazyce

We studied how ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) isozyme activities and photosynthetic pigments content responded to drought and whether they related to presence of a terminal drought tolerance QTL in pearl millet. Under drought there was no significant change in the total APX activity; only the proportional APX5 activity increased, with higher band intensity in tolerant genotypes. There were no significant changes in total activities of CAT and SOD, with similar band intensities in all genotypes, and a new CAT isozyme was induced in all genotypes. The pigment content decreased under drought, but not differently in any genotype. The activities of most APX, CAT and SOD isozymes were closely related to the total chlorophyll/carotenoids ratio. The absence of discrimination for the ROS scavenging enzymes and for the pigment content under stress suggests that these traits may not play a key role in terminal drought tolerance in pearl millet.

Název v anglickém jazyce

Does a terminal drought tolerance QTL contribute to differences in ROS scavenging enzymes and photosynthetic pigments in pearl millet exposed to drought?

Popis výsledku anglicky

We studied how ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) isozyme activities and photosynthetic pigments content responded to drought and whether they related to presence of a terminal drought tolerance QTL in pearl millet. Under drought there was no significant change in the total APX activity; only the proportional APX5 activity increased, with higher band intensity in tolerant genotypes. There were no significant changes in total activities of CAT and SOD, with similar band intensities in all genotypes, and a new CAT isozyme was induced in all genotypes. The pigment content decreased under drought, but not differently in any genotype. The activities of most APX, CAT and SOD isozymes were closely related to the total chlorophyll/carotenoids ratio. The absence of discrimination for the ROS scavenging enzymes and for the pigment content under stress suggests that these traits may not play a key role in terminal drought tolerance in pearl millet.

Druh

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

CEP obor

ED - Fyziologie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Environmental and Experimental Botany

ISSN

0098-8472

e-ISSN

—

Svazek periodika

71

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

99-106

Kód UT WoS článku

000287054200013

EID výsledku v databázi Scopus

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