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Aquaporins and plant leaf movements

Uehlein, Norbert ; Kaldenhoff, Ralf :
Aquaporins and plant leaf movements.
In: Annals of botany, 101 pp. 1-4.
[Artikel], (2008)

Kurzbeschreibung (Abstract)

BACKGROUND: Plant leaf movements can be mediated by specialized motor organs, the pulvini, or can be epinastic (i.e. based on different growth velocities of the adaxial and abaxial halves of the leaf). Both processes are associated with diurnally regulated increases in rates of membrane water transport, which in many cases has been shown to be facilitated by aquaporins. Rhythmic leaf movements are known from many plant species, but few papers deal with the involvement of aquaporins in such movements. SCOPE: Many details of the architecture and function of pulvini were worked out by Ruth Satter and co-workers using Samanea saman as a model organism. More recently a contribution of aquaporins to pulvinar movement in Samanea was demonstrated. Another model plant to study pulvinus-mediated leaf movements is Mimosa pudica. The contribution of both plasma membrane- and tonoplast-localized aquaporins to the seismonastic leaf movements in Mimosa was analysed. In tobacco, as an example of epinastic leaf movement, it was shown that a PIP1 aquaporin family member is an important component of the leaf movement mechanism

Typ des Eintrags: Artikel
Erschienen: 2008
Autor(en): Uehlein, Norbert ; Kaldenhoff, Ralf
Titel: Aquaporins and plant leaf movements
Sprache: Englisch
Kurzbeschreibung (Abstract):

BACKGROUND: Plant leaf movements can be mediated by specialized motor organs, the pulvini, or can be epinastic (i.e. based on different growth velocities of the adaxial and abaxial halves of the leaf). Both processes are associated with diurnally regulated increases in rates of membrane water transport, which in many cases has been shown to be facilitated by aquaporins. Rhythmic leaf movements are known from many plant species, but few papers deal with the involvement of aquaporins in such movements. SCOPE: Many details of the architecture and function of pulvini were worked out by Ruth Satter and co-workers using Samanea saman as a model organism. More recently a contribution of aquaporins to pulvinar movement in Samanea was demonstrated. Another model plant to study pulvinus-mediated leaf movements is Mimosa pudica. The contribution of both plasma membrane- and tonoplast-localized aquaporins to the seismonastic leaf movements in Mimosa was analysed. In tobacco, as an example of epinastic leaf movement, it was shown that a PIP1 aquaporin family member is an important component of the leaf movement mechanism

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Annals of botany
Band: 101
Fachbereich(e)/-gebiet(e): Fachbereich Biologie, Biology
Fachbereich Biologie, Biology > Angewandte Pflanzenwissenschaften, Applied Plant Sciences
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Hinterlegungsdatum: 20 Nov 2008 08:27
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