Dynamic changes in root hydraulic properties in response to nitrate availability

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00022982" target="_blank" >RIV/00216224:14310/07:00022982 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Dynamic changes in root hydraulic properties in response to nitrate availability
Original language description
We explored in detail changes in root hydraulic resistance in response to alterations in nitrate supply as a potential mechanism that allows plants to respond rapidly to changes in their environment. Sunflower (Helianthus anuus cv. Holiday) plants grownin hydroponics with limited nitrate availability served as our model. The response was rapid, with a decrease of about 20% occurring within the first hour after addition of 5mM nitrate. We also showed that the magnitude of this effect was dependent on nitrate concentration. The change in root hydraulic resistance was largely reversible, although the temporal dynamics of the response to nitrate addition versus nitrate withdrawal differed, raising the possibility that the underlying mechanisms may also differ. We present evidence that the observed changes in root hydraulic properties, presumably due to changes in the activity of aquaporins, are linked with a reduction in nitrate concentration in root cells. We propose that a rapid decreas
Czech name
Dynamické změny hydraulických vlastností kořenů v reakci na dostupnost nitrátových iontů
Czech description
Změna hydraulických vlastností kořenů rostlin slunečnice po změně koncentrace nitrátů v okolí kořenů byla rychlá a pravděpodobně souvisí s asimilací nitrátů v buňkách.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EF - Botany
OECD FORD branch
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Project
<a href="/en/project/1P05ME793" target="_blank" >1P05ME793: Roots, water and the rhizosphere: Flushing out a new paradigm for belowground biology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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