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| rdf:type
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| Description
| - Cytokinin (CK) levels in cotyledons of Cucurbita pepo L. (zucchini) were investigated through the processes of post-germination, greening, natural senescence and subsequent rejuvenation. The concentrations of the physiologically active CK bases, ribosides and nucleotides, as well as the cis-isomers of zeatin derivatives, decreased between the first and fifth weeks of cultivation under controlled light conditions. At the same time, the levels of storage CK O-glucosides and physiologically inactive CK 7- and 9-glucosides increased with senescence. With plant decapitation and subsequent cotyledon rejuvenation, not only the chlorophyll content but also the levels of physiologically active CKs, nucleotides and cis-zeatin derivatives increased. The levels of O-glucosides, however, decreased. When 1-week-old seedlings were transferred to the dark, there was a progressive reduction in cotyledon chlorophyll content, deterioration of chloroplast ultrastructure and a decrease in physiologicall...
- Cytokinin (CK) levels in cotyledons of Cucurbita pepo L. (zucchini) were investigated through the processes of post-germination, greening, natural senescence and subsequent rejuvenation. The concentrations of the physiologically active CK bases, ribosides and nucleotides, as well as the cis-isomers of zeatin derivatives, decreased between the first and fifth weeks of cultivation under controlled light conditions. At the same time, the levels of storage CK O-glucosides and physiologically inactive CK 7- and 9-glucosides increased with senescence. With plant decapitation and subsequent cotyledon rejuvenation, not only the chlorophyll content but also the levels of physiologically active CKs, nucleotides and cis-zeatin derivatives increased. The levels of O-glucosides, however, decreased. When 1-week-old seedlings were transferred to the dark, there was a progressive reduction in cotyledon chlorophyll content, deterioration of chloroplast ultrastructure and a decrease in physiologicall... (en)
- Byl sledován obsah cytokininů (CK) v dělohách Cucurbita pepo (zucchini) po klíčení během zelenání následného přirozeného stárnutí (senescence), jakož i indukovaného omlazení (“rejuvenace”). Koncentrace fyziologicky aktivních CK bází, ribosidů a nukleotidů, jakož i cis isomerů derivátů zeatinu klesala mezi prvním a pátým dnem kultivace v podmínkách řízeného osvětlení. Ve stejnou dobu se z progresem senescence zvyšoval obsah zásobních CK O-glukosidů a fyziologicky neaktivních CK 7- a 9-glukosidů. Po dekapitaci rostlin a následném omlazení děloh se zvyšoval nejen obsah chlorofylu, ale též fyziologicky aktivních CK, nukleotidů CK a derivátů cis-zeatinu, zatímco hladina zásobních CK O-glukosidů klesala. Po navození senescence přenosem týden starých klíčních rostlin do tmy se v dělohách snižoval obsah chlorofylu, byla narušena ultrastruktura chloroplastů a klesal obsah fyziologicky aktivních CK a jejich nukleotidů. Na rozdíl od přirozené senescence klesala hladina zásobních CK O-glukosi... (cs)
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| Title
| - Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence
- Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence (en)
- Změny v hladinách endogenních cytokininů v dělohách Cucurbita pepo (zucchini) v průběhu přirozené senescence (cs)
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| skos:prefLabel
| - Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence
- Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence (en)
- Změny v hladinách endogenních cytokininů v dělohách Cucurbita pepo (zucchini) v průběhu přirozené senescence (cs)
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| skos:notation
| - RIV/61389030:_____/04:00107464!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:_____/04:00107464
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Cucurbita pepo L. (zucchini); chlorophyll content; 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
| |
| http://linked.open...i/riv/nazevZdroje
| |
| 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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