Signalling mechanisms involved in the response of two varieties of Humulus lupulus L. to soil drying: I. changes in xylem sap pH and the concentrations of abscisic acid and anions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33152571" target="_blank" >RIV/61989592:15310/14:33152571 - isvavai.cz</a>
Alternative codes found
RIV/61389030:_____/14:00433375 RIV/00216224:14310/14:00073748
Result on the web
<a href="http://link.springer.com/article/10.1007%2Fs11104-014-2101-1" target="_blank" >http://link.springer.com/article/10.1007%2Fs11104-014-2101-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11104-014-2101-1" target="_blank" >10.1007/s11104-014-2101-1</a>

Result language
angličtina
Original language name
Signalling mechanisms involved in the response of two varieties of Humulus lupulus L. to soil drying: I. changes in xylem sap pH and the concentrations of abscisic acid and anions
Original language description
Soil drying leads to the generation of chemical signals in plants that regulate water use via control of the stomatal aperture. The aim of our work was to identify the presence and identity of potential chemical signals, their dynamics, and their relationship with transpiration rate during soil drying in hop (Humulus lupulus (L.)) plants. We used pressure chamber technique for measurement of shoot water potential and collection of shoot xylem sap. We analyzed concentrations of abscisic acid (ABA), nitrate, phosphate, sulphate and malate in sap and also the rate of whole plant transpiration. Transpiration rate decreased prior to changes in shoot water potential. The concentration of ABA in xylem sap continuously increased from early to later stages of water stress, whereas in leaves it increased only at later stages. Shoot sap pH increased simultaneously with the decrease of transpiration rate. Xylem sap alkalization was in some cases accompanied by a decrease in nitrate concentration a
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
—

Project
<a href="/en/project/GA206%2F09%2F1967" target="_blank" >GA206/09/1967: Analýza omezujícího vlivu xylémového transportu na stav vody a výměnu plynů u rostlin chmele</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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