| Attributes | Values |
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| rdf:type
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| Description
| - Endogenous cytokinins (CK) were measured in Cucurbita pepo L. (zucchini) cotyledons after spraying 7-day-old seedlings with methyl jasmonate (MeJA) to examine whether the senescence-promoting action of MeJA is associated with changes in metabolic regulation of CK levels. MeJA promoted senescence as estimated by the loss of chlorophyll and injury to chloroplast ultrastructure. This was already detected one day after treatment. The contents of physiologically active CKs determined by high-performance liquid chromatography-mass spectrometry (CK bases: trans-zeatin, dihydrozeatin and isopentenyladenine and their ribosides), especially trans-zeatin and its riboside declined considerably. CK nucleotides and physiologically inactive CK 7- and 9-glucosides were also markedly decreased whereas the content of storage CK O-glucosides as well as cis-isomers of zeatin declined only slightly. Chlorophyll content and the normal chloroplast structure recovered 5 days after the MeJa treatment. The p...
- Endogenous cytokinins (CK) were measured in Cucurbita pepo L. (zucchini) cotyledons after spraying 7-day-old seedlings with methyl jasmonate (MeJA) to examine whether the senescence-promoting action of MeJA is associated with changes in metabolic regulation of CK levels. MeJA promoted senescence as estimated by the loss of chlorophyll and injury to chloroplast ultrastructure. This was already detected one day after treatment. The contents of physiologically active CKs determined by high-performance liquid chromatography-mass spectrometry (CK bases: trans-zeatin, dihydrozeatin and isopentenyladenine and their ribosides), especially trans-zeatin and its riboside declined considerably. CK nucleotides and physiologically inactive CK 7- and 9-glucosides were also markedly decreased whereas the content of storage CK O-glucosides as well as cis-isomers of zeatin declined only slightly. Chlorophyll content and the normal chloroplast structure recovered 5 days after the MeJa treatment. The p... (en)
- Byly stanoveny hladiny endogenních cytokininů (CK) v dělohách po postřiku 7 dní starých klíčních rostlin Cucurbota pepo (cuketa) roztokem metylesteru kyseliny jasmonové (MeJA) s cílem zjistit, zda působení MeJA na senesecenci (stárnutí) není zprostředkováno CK. MeJA urychloval senescenci děloh, která se projevila poklesem obsahu chlorofylu a narušením ultrastruktury chloroplastů již první den po aplikaci MeJA. Výrazně poklesl obsah fyziologicky aktivních CK (CK báze: trans-zeatin, dihydrozeatin, a isopentenyladenin a jejich ribosidy),. Zejména výrazný byl pokles hladin trans-zeatinu (Z) a jeho ribosidu stanovených pomocí vysokoúčinné kapalinové chromatografie v kombinaci s hmotnostní spektrometrií. Rovněž klesl obsah CK nukleotidů a fyziologicky neaktivních CK 7-a 9-glukosidů, zatímco pokles zásobních CK O-glukosidů a cis isomérů zeatinu byl méně výrazný. Pět dní po aplikaci MeJA se obsah chlorofylu vrátil téměř na původní úroveň a došlo rovněž k částečné obnově ultrastruktury ch... (cs)
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| Title
| - Methyl jasmonate down-regulates endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) seedlings
- Metylester kyseliny jasmonové snižuje hladiny endogenních cytokininů v dělohách klíčních rostlin Cucurbota pepo (cuketa) (cs)
- Methyl jasmonate down-regulates endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) seedlings (en)
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| skos:prefLabel
| - Methyl jasmonate down-regulates endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) seedlings
- Metylester kyseliny jasmonové snižuje hladiny endogenních cytokininů v dělohách klíčních rostlin Cucurbota pepo (cuketa) (cs)
- Methyl jasmonate down-regulates endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) seedlings (en)
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| skos:notation
| - RIV/61389030:_____/04:00107465!RIV/2005/AV0/A56005/N
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA522/02/0530), Z(AV0Z5038910)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61389030:_____/04:00107465
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - methyl jasmonate; senescence; cytokinin (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Malbeck, Jiří
- Kamínek, Miroslav
- Ananieva, H.
- Staden, J.
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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