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Statements

Subject Item
n2:RIV%2F61389030%3A_____%2F07%3A00098589%21RIV08-AV0-61389030
rdf:type
skos:Concept n15:Vysledek
dcterms:description
The differences between two maize (Zea mays L.) inbred lines and their F1 hybrids in their response to chilling periods of various duration (1, 2, 3 or 4 weeks) and subsequent return to optimum temperatures were analysed by the measurement of the photosystem (PS) 1 and 2 activity, the photosynthetic pigments’ content and the activity of antioxidant enzymes. The PS2 activity and the chlorophyll content decreased in plants subjected to 3 or 4 weeks of chilling, but not in those subjected to 1 or 2 weeks of chilling. This decrease was more pronounced in inbreds compared to their hybrids. The activity of superoxide dismutase did not much change with the increasing length of chilling period in the inbreds but decreased in the hybrids, the glutathione reductase activity increased in both types of genotypes but more in the inbred lines, while for ascorbate peroxidase and catalase the changes in parentshybrids relationship did not show any specific trend. The PS1 activity and the carotenoids’ content was... Byly analyzovány rozdíly mezi dvěma inbredními a dvěma hybridními liniemi kukuřice (Zea mays L.) v odpovědi na chlad různého trvání (1, 2, 3, nebo 4 týdny) a následný návrat do optimální teploty měřením aktivit fotosystému 1 a 2, obsahu fotosyntetických pigmentů a aktivit antioxidačních enzymů. Aktivita PS 2 a obsah chlorofylu klesl v rostlinách pěstovaných 3 nebo 4 týdny v chladu, ale ne při kratším období (1 nebo 2 týdny). Tento pokles byl výraznější u inbredních linií. Aktivita superoxiddismutasy nezávisela na době trvání stresu (1.2,3,4 týdny) u inbrednich, ale poklesala u hybridních linií. Aktivita glutathionreduktasy vzrůstala u obou druhů genotypů, ale do větší míry v inbredních liniích. Naproti tomu změny askorbátperoxidasy a katalasy nevykazovaly specifickou tendenci ke vztahu rodiče-hybridi. Aktivita fotosystému 1 a obsah karotenoidů nebyly téměř ovlivněny. The differences between two maize (Zea mays L.) inbred lines and their F1 hybrids in their response to chilling periods of various duration (1, 2, 3 or 4 weeks) and subsequent return to optimum temperatures were analysed by the measurement of the photosystem (PS) 1 and 2 activity, the photosynthetic pigments’ content and the activity of antioxidant enzymes. The PS2 activity and the chlorophyll content decreased in plants subjected to 3 or 4 weeks of chilling, but not in those subjected to 1 or 2 weeks of chilling. This decrease was more pronounced in inbreds compared to their hybrids. The activity of superoxide dismutase did not much change with the increasing length of chilling period in the inbreds but decreased in the hybrids, the glutathione reductase activity increased in both types of genotypes but more in the inbred lines, while for ascorbate peroxidase and catalase the changes in parentshybrids relationship did not show any specific trend. The PS1 activity and the carotenoids’ content was...
dcterms:title
Obnova inbredních a hybridních linií kukuřice (Zea mays L.) po chladovém stresu různého trvání: fotosyntéza a antioxidační enzymy Recovery of maize (Zea mays L.) inbreds and hybrids from chilling stress of various duration: plant development, photosynthesis and antioxidative enzymes Recovery of maize (Zea mays L.) inbreds and hybrids from chilling stress of various duration: plant development, photosynthesis and antioxidative enzymes
skos:prefLabel
Recovery of maize (Zea mays L.) inbreds and hybrids from chilling stress of various duration: plant development, photosynthesis and antioxidative enzymes Recovery of maize (Zea mays L.) inbreds and hybrids from chilling stress of various duration: plant development, photosynthesis and antioxidative enzymes Obnova inbredních a hybridních linií kukuřice (Zea mays L.) po chladovém stresu různého trvání: fotosyntéza a antioxidační enzymy
skos:notation
RIV/61389030:_____/07:00098589!RIV08-AV0-61389030
n4:strany
868;877
n4:aktivita
n13:V n13:Z
n4:aktivity
V, Z(AV0Z50380511)
n4:cisloPeriodika
-
n4:dodaniDat
n7:2008
n4:domaciTvurceVysledku
n14:9840419
n4:druhVysledku
n6:J
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n5:predkladatel
n4:idSjednocenehoVysledku
446767
n4:idVysledku
RIV/61389030:_____/07:00098589
n4:jazykVysledku
n16:eng
n4:klicovaSlova
Antioxidant enzymes; chilling; intraspecific variability; photosynthesis; recovery; Zea mays
n4:klicoveSlovo
n9:intraspecific%20variability n9:Zea%20mays n9:photosynthesis n9:recovery n9:chilling n9:Antioxidant%20enzymes
n4:kodStatuVydavatele
PT - Portugalská republika
n4:kontrolniKodProRIV
[035D383D02E0]
n4:nazevZdroje
Journal of Plant Physiology
n4:obor
n12:EB
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n7:2007
n4:svazekPeriodika
164
n4:tvurceVysledku
Holá, D. Wilhelmová, Naděžda Benešová, M. Kočová, M. Rothová, O.
n4:zamer
n17:AV0Z50380511
s:issn
0176-1617
s:numberOfPages
10