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| Description
| - The responses of tobacco plants over-expressing trans-zeatin O-glucosyltransferase gene under constitutive or senescence-inducible promoter (35S:ZOG1 and SAG12:ZOG1) and of wild type (WT) plants to water stress and subsequent rehydration were compared. In plants sufficiently supplied with water, both transgenics have higher net photosynthetic rate (PN) in upper and middle leaves and higher stomatal conductance (gs) in middle leaves than WT. Water use efficiency (WUE = PN/E) was higher in both transgenics than in WT. During prolonged water stress, both PN and E declined to a similar extent in both transgenics and WT plants. However, 7 d after rehydration PN in SAG:ZOG (upper and middle leaves) and 35S:ZOG (upper leaves) was higher than that in WT plants. Increased content of endogenous CKs in 35S:ZOG plants did not prevent their response to ABA application and the results obtained did not support concept of CK antagonism of ABA-induced stomatal closure. The chlorophyll (Chl) a+b content was mostly h...
- The responses of tobacco plants over-expressing trans-zeatin O-glucosyltransferase gene under constitutive or senescence-inducible promoter (35S:ZOG1 and SAG12:ZOG1) and of wild type (WT) plants to water stress and subsequent rehydration were compared. In plants sufficiently supplied with water, both transgenics have higher net photosynthetic rate (PN) in upper and middle leaves and higher stomatal conductance (gs) in middle leaves than WT. Water use efficiency (WUE = PN/E) was higher in both transgenics than in WT. During prolonged water stress, both PN and E declined to a similar extent in both transgenics and WT plants. However, 7 d after rehydration PN in SAG:ZOG (upper and middle leaves) and 35S:ZOG (upper leaves) was higher than that in WT plants. Increased content of endogenous CKs in 35S:ZOG plants did not prevent their response to ABA application and the results obtained did not support concept of CK antagonism of ABA-induced stomatal closure. The chlorophyll (Chl) a+b content was mostly h... (en)
- U transgenních rostlin tabáku s vneseným genem pro trans-zeatin O-glukosyltransferázu (ZOG1, který zvyšuje obsah převážně zásobních cytokininů) jednak pod konstitutivním promotorem 35S (ZOG:35S) a jednak pod senescencí-indukovaným promotorem SAG12 (ZOG:SAG) byla sledována reakce na vodní stress a následnou rehydrataci. Při dostatečném zásobení vodou měly ZOG:35S a ZOG:SAG vyšší rychlost fotosyntézy (PN) u horních a středních listů a středních listů, vyšší vodivost průduchů (gs) u středních listů a vyšší efektivitu využití vody (WUE = PN/E) než netransformované rostliny (Nicotiana tabacum L. cv. Wisconsin 38; W38). Po přerušení zálivky docházelo paralelně u všech typů rostlin ke snižování všech parametrů výměny plynů a to zejména u dolních listů. Po opětovném zalití docházelo k výraznému zvyšování všech měřených parametrů a po 7 dnech PN u horních a středních listů SAG:ZOG a u horních listů 35S:ZOG byla o něco vyšší než u W38. Obsah chlorofylu a+b (Chl) u rostlin dostatečně zásobených vodou byl o ně... (cs)
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| Title
| - The impact of trans-zeatin O-glucosyltransferase gene over-expression
- Vliv zvýšené exprese trans-zeatin O-glukosyltransferázy na obsah pigmentů a výměnu plynů u tabáku (cs)
- The impact of trans-zeatin O-glucosyltransferase gene over-expression (en)
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| skos:prefLabel
| - The impact of trans-zeatin O-glucosyltransferase gene over-expression
- Vliv zvýšené exprese trans-zeatin O-glukosyltransferázy na obsah pigmentů a výměnu plynů u tabáku (cs)
- The impact of trans-zeatin O-glucosyltransferase gene over-expression (en)
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| skos:notation
| - RIV/61389030:_____/08:00319188!RIV09-AV0-61389030
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| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GA522/04/0549), P(ME 868), Z(AV0Z50380511)
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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:_____/08:00319188
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - carotenoids; chlorophylls; net photosynthetic rate; Nicotiana tabacum (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
| |
| 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
| - Haisel, Daniel
- Vaňková, Radomíra
- Pospíšilová, Jana
- Synková, Helena
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| http://linked.open...ain/vavai/riv/wos
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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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| is http://linked.open...avai/riv/vysledek
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