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Flavonol-induced changes in PIN2 polarity and auxin transport in the Arabidopsis thaliana rol1-2 mutant require phosphatase activity

Kuhn, Benjamin M. ; Nodzyński, Tomasz ; Errafi, Sanae ; Bucher, Rahel ; Gupta, Shibu ; Aryal, Bibek ; Dobrev, Petre ; Bigler, Laurent ; Geisler, Markus ; Zažímalová, Eva ; Friml, Jiří ; Ringli, Christoph

In: Scientific Reports, 2017, vol. 7, p. 41906

The phytohormone auxin is a major determinant and regulatory component important for plant development. Auxin transport between cells is mediated by a complex system of transporters such as AUX1/LAX, PIN, and ABCB proteins, and their localization and activity is thought to be influenced by phosphatases and kinases. Flavonols have been shown to alter auxin transport activity and changes in...

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Flavonols accumulate asymmetrically and affect auxin transport in Arabidopsis thaliana

Kuhn, Benjamin M. ; Geisler, Markus ; Bigler, Laurent ; Ringli, Christoph

In: Plant Physiology, 2011, p. -

Flavonoids represent a class of secondary metabolites with diverse functions in plants including UV protection, pathogen defence, and interspecies communication. They are also known as modulators of signalling processes in plant and animal systems and therefore are considered to have beneficial effects as nutraceuticals. The rol1-2 (repressor of lrx1) mutation of Arabidopsis...

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