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Statements

Subject Item
n2:RIV%2F61389030%3A_____%2F12%3A00382516%21RIV13-AV0-61389030
rdf:type
n8:Vysledek skos:Concept
dcterms:description
The effect of light on gene expression and hormonal status during the development of freezing tolerance was studied in winter wheat (Triticum aestivum var. Mv Emese) and in the spring wheat variety Nadro. Ten-day-old plants (3-leaf stage) were cold hardened at 5 degrees C for 12 days under either normal (250 mu mol m-2 s-1) or low (20 mu mol m-2 s-1) light conditions. Comprehensive analysis was carried out to explore the background of frost tolerance and the differences between these wheat varieties. Global genome analysis was performed, enquiring about the details of the cold signaling pathways. The expression level of a large number of genes is affected by light, and this effect may differ in different wheat genotypes. Photosynthesis-related processes probably play a key role in the enhancement of freezing tolerance; however, there are several other genes whose induction is light-dependent, so either there is cross-talk between signaling of chloroplast originating and other protective mechanisms or there are other light sensors that transduce signals to the components responsible for stress tolerance. Changes in the level of both plant hormones (indole-3-acetic acid, cytokinins, nitric oxide and ethylene precursor 1-aminocyclopropane-1-carboxylic acid) and other stress-related protective substances (proline, phenolics) were investigated during the phases of the hardening period. Hormonal levels were also affected by light and their dynamics indicate that wheat plants try to keep growing during the cold-hardening period. The data from this experiment may provide a new insight into the cross talk between cold and light signaling in wheat. The effect of light on gene expression and hormonal status during the development of freezing tolerance was studied in winter wheat (Triticum aestivum var. Mv Emese) and in the spring wheat variety Nadro. Ten-day-old plants (3-leaf stage) were cold hardened at 5 degrees C for 12 days under either normal (250 mu mol m-2 s-1) or low (20 mu mol m-2 s-1) light conditions. Comprehensive analysis was carried out to explore the background of frost tolerance and the differences between these wheat varieties. Global genome analysis was performed, enquiring about the details of the cold signaling pathways. The expression level of a large number of genes is affected by light, and this effect may differ in different wheat genotypes. Photosynthesis-related processes probably play a key role in the enhancement of freezing tolerance; however, there are several other genes whose induction is light-dependent, so either there is cross-talk between signaling of chloroplast originating and other protective mechanisms or there are other light sensors that transduce signals to the components responsible for stress tolerance. Changes in the level of both plant hormones (indole-3-acetic acid, cytokinins, nitric oxide and ethylene precursor 1-aminocyclopropane-1-carboxylic acid) and other stress-related protective substances (proline, phenolics) were investigated during the phases of the hardening period. Hormonal levels were also affected by light and their dynamics indicate that wheat plants try to keep growing during the cold-hardening period. The data from this experiment may provide a new insight into the cross talk between cold and light signaling in wheat.
dcterms:title
Effect of light on the gene expression and hormonal status of winter and spring wheat plants during cold hardening Effect of light on the gene expression and hormonal status of winter and spring wheat plants during cold hardening
skos:prefLabel
Effect of light on the gene expression and hormonal status of winter and spring wheat plants during cold hardening Effect of light on the gene expression and hormonal status of winter and spring wheat plants during cold hardening
skos:notation
RIV/61389030:_____/12:00382516!RIV13-AV0-61389030
n8:predkladatel
n12:ico%3A61389030
n3:aktivita
n9:Z n9:P
n3:aktivity
P(MEB040713), P(MEB040924), Z(AV0Z50380511)
n3:cisloPeriodika
2
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n10:4739841 n10:9744886
n3:druhVysledku
n17:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
133116
n3:idVysledku
RIV/61389030:_____/12:00382516
n3:jazykVysledku
n18:eng
n3:klicovaSlova
SOLID-PHASE EXTRACTION; ABSCISIC-ACID CONTENT; CDNA MICROARRAY DATA
n3:klicoveSlovo
n14:SOLID-PHASE%20EXTRACTION n14:CDNA%20MICROARRAY%20DATA n14:ABSCISIC-ACID%20CONTENT
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[42C4EF9C30BF]
n3:nazevZdroje
Physiologia Plantarum
n3:obor
n6:ED
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
10
n3:projekt
n15:MEB040713 n15:MEB040924
n3:rokUplatneniVysledku
n4:2012
n3:svazekPeriodika
145
n3:tvurceVysledku
Majlath, I. Janda, T. Dobrev, Petre Vaňková, Radomíra Szalai, G. Tari, I. Tandori, J. Sebestyén, E. Soós, V. Balázs, E.
n3:wos
000303798500005
n3:zamer
n20:AV0Z50380511
s:issn
0031-9317
s:numberOfPages
19
n16:doi
10.1111/j.1399-3054.2012.01579.x