About: Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L. (cs) Reproductive development in the Christmas rose (Helleborus niger L.) differs from that in commonly investigated model plants in two important aspects: (i) the perianth develops a photosynthetic system, after fertilization, and persists until seed ripening; and (ii) the ripe seed contains an immature embryo which continues to mature off the mother plant. The possible roles of cytokinins in these processes are investigated here by analysing extracts of the perianth and the carpels/maturing fruit prepared during anthesis and four stages of post-floral development. trans-Zeatin, dihydrozeatin, N6-(2-isopentenyl)adenine, and their ribosides were identified by tandem mass spectrometry. Single ion monitoring in the presence of deuterated internal standards demonstrated the additional presence of the corresponding riboside-5'-monophosphates, O-glucosides, and 9-glucosides, and afforded quantitative data on the whole set of endogenous cytokinins. Fruit cytokinins were mostly localized in the seeds. Their ov... Reproductive development in the Christmas rose (Helleborus niger L.) differs from that in commonly investigated model plants in two important aspects: (i) the perianth develops a photosynthetic system, after fertilization, and persists until seed ripening; and (ii) the ripe seed contains an immature embryo which continues to mature off the mother plant. The possible roles of cytokinins in these processes are investigated here by analysing extracts of the perianth and the carpels/maturing fruit prepared during anthesis and four stages of post-floral development. trans-Zeatin, dihydrozeatin, N6-(2-isopentenyl)adenine, and their ribosides were identified by tandem mass spectrometry. Single ion monitoring in the presence of deuterated internal standards demonstrated the additional presence of the corresponding riboside-5'-monophosphates, O-glucosides, and 9-glucosides, and afforded quantitative data on the whole set of endogenous cytokinins. Fruit cytokinins were mostly localized in the seeds. Their ov... (en)
Title	Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L (en) Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L (cs)
skos:prefLabel	Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L (en) Cytokinins in the perianth, carpels, and developing fruit of Helleborus niger L (cs)
skos:notation	RIV/61389030:_____/06:00083389!RIV07-AV0-61389030
http://linked.open.../vavai/riv/strany	2237;2247
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z50380511), Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Tarkowská, Danuše Novák, Ondřej Strnad, Miroslav Tarkowski, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav experimentální botaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	470265
http://linked.open...ai/riv/idVysledku	RIV/61389030:_____/06:00083389
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Christmas rose; cytokinin identification and quantification; fruit and seed development (en)
http://linked.open.../riv/klicoveSlovo	Christmas rose cytokinin identification and quantification fruit and seed development
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[402029326E64]
http://linked.open...i/riv/nazevZdroje	Journal of Experimental Botany
http://linked.open...in/vavai/riv/obor	CE
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	57
http://linked.open...iv/tvurceVysledku	Novák, Ondřej Strnad, Miroslav Tarkowská, Danuše Tarkowski, Petr Magnus, V. Mihaljević, S. Salopek-Sondi, N.
http://linked.open...n/vavai/riv/zamer	Mechanismy regulace růstu a vývoje rostlin na úrovni buněk, orgánů a celých organismů: fyziologické, genetické a molekulárně biologické základy Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0022-0957
number of pages	11 (xsd:int)

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