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| Description
| - The roots and stems of dicotyledonous plants thicken by the cell proliferation in the cambium. Cambial proliferation changes in response to environmental factors; however, the molecular mechanisms that regulate cambial activity are largely unknown. The quadruple Arabidopsis thaliana mutant atipt1;3;5;7, in which 4 genes encoding cytokinin biosynthetic isopentenyltransferases are disrupted by T-DNA insertion, was unable to form cambium and showed reduced thickening of the root and stem. The atipt3 single mutant, which has moderately decreased levels of cytokinins, exhibited decreased root thickening without any other recognizable morphological changes. Addition of exogenously supplied cytokinins to atipt1;3;5;7 reactivated the cambium in a dose-dependent manner. When an atipt1;3;5;7 shoot scion was grafted onto WT root stock, both the root and shoot grew normally and trans-zeatin-type (tZ-type) cytokinins in the shoot were restored to WT levels, but isopentenyladenine-type cytokinins in the shoot re...
- The roots and stems of dicotyledonous plants thicken by the cell proliferation in the cambium. Cambial proliferation changes in response to environmental factors; however, the molecular mechanisms that regulate cambial activity are largely unknown. The quadruple Arabidopsis thaliana mutant atipt1;3;5;7, in which 4 genes encoding cytokinin biosynthetic isopentenyltransferases are disrupted by T-DNA insertion, was unable to form cambium and showed reduced thickening of the root and stem. The atipt3 single mutant, which has moderately decreased levels of cytokinins, exhibited decreased root thickening without any other recognizable morphological changes. Addition of exogenously supplied cytokinins to atipt1;3;5;7 reactivated the cambium in a dose-dependent manner. When an atipt1;3;5;7 shoot scion was grafted onto WT root stock, both the root and shoot grew normally and trans-zeatin-type (tZ-type) cytokinins in the shoot were restored to WT levels, but isopentenyladenine-type cytokinins in the shoot re... (en)
- Kořeny a stonky dvouděložných rostlin tloustnou buněčnou proliferací v kambiu. Tato aktivita odráží změny prostředí, avšak molekulární mechanismy, které regulují kambiální aktivitu jsou většinou neznámé. S využitím mutantů isopentenyltransferas, které kódují cytokininové biosyntetické enzymy bylo prokázáno, že snížená hladina cytokininů vede k redukci sekundárního tloustnutí. Exogenně aplikované cytokininy byly schopny tento fenotyp zvrátit způsobem závislým na koncentraci. (cs)
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| Title
| - Cytokinins are central regulators of cambial activity
- Cytokininy jsou hlavními regulátory kambiální aktivity (cs)
- Cytokinins are central regulators of cambial activity (en)
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| skos:prefLabel
| - Cytokinins are central regulators of cambial activity
- Cytokininy jsou hlavními regulátory kambiální aktivity (cs)
- Cytokinins are central regulators of cambial activity (en)
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| skos:notation
| - RIV/61389030:_____/08:00323545!RIV09-AV0-61389030
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - S, Z(AV0Z50380511), Z(MSM6198959216)
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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:_____/08:00323545
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - cambium; isopentenyladenine; phytohormone; zeatin (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Proceedings of the National Academy of Sciences of the United States of America
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Tarkowski, Petr
- Václavíková, Kateřina
- Kakimoto, T.
- Kinoshita-Tsujimura, K.
- Kusumoto, T.
- Matsumoto-Kitano, M.
- Miyawaki, K.
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| http://linked.open...ain/vavai/riv/wos
| |
| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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