Description: Das Projekt "Die hydraulische Aktivierung von Stomata (HAS) - Entstehung; Einfluss auf Nährstoff- und Wasserhaushalt; Anwendung" wird vom Umweltbundesamt gefördert und von Universität Bonn, Institut für Nutzpflanzenwissenschaften und Ressourcenschutz (INRES) - Bereich Pflanzenernährung durchgeführt. The 'hydraulic activation of stomata' (HAS) describes the establishment of continuous liquid water connections along stomatal walls, which affects individual stomata. It enables the efficient bidirectional transport of water, solutes, and hydraulic signals between the leaf interior and leaf surface and makes stomatal transpiration partly independent of stomatal aperture. While in our earlier work we postulated the existence of these connections and contributed substantially to their final approval, this research proposal focusses on the fundamental significance of HAS for the water and nutrient relations of plants, for atmosphere/plant interaction, and for the modelling of gas exchange. The planned experimental investigations aim to describe HAS formation by hygroscopic salts, to examine new concepts of the plant humidity sensor, nocturnal transpiration, stomatal water uptake, and the 'extended apoplast', as well as the significance of epicuticle waxes for atmospheric particle capture. Together, this should lead both to the further development of new theoretical concepts describing plant adaptations to aerosol regimes, and to practical applications in foliar fertilization, plant protection, and improvement of salt stress tolerance.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Bonn ? Bleisalz ? Weiterverwendung ? Anlagengenehmigung ? Nährstoff ? Sensor ? Stomata ? Transpiration ? Salz ? Lagerstättenwasser ? Aerosol ? Hydraulik ? Laubblatt ? Regenwasser ? Stress ? Flüssiger Stoff ? Bewässerung ? Düngung ? Gasaustausch ? Neuanlage ? Pflanzenernährung ? Zulassung ? Wasser ? Modellierung ? Innenraum ? Partikel ? Pflanzenschutz ? Ressourcenschutz ? Arbeit ? Atmosphäre ? Wasserhaushalt ? Wasseroberfläche ? Wasserstand ? Verkehr ? Feuchtigkeit ? Forschung ? Bleiaerosol ? nächtlich ? Grundlage ? Laub ? Oberfläche ? Salzbildung ? Toleranz ? Anlagenbegriff ? Verfrachtung ? Verhältnis ? Vorschlag ? Wand ? Wasser- ?
Region: Nordrhein-Westfalen
Bounding box: 6.76339° .. 6.76339° x 51.21895° .. 51.21895°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2011-01-01 - 2024-11-29
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