Article
AUX1-mediated root hair auxin influx governs SCFTIR1/AFB-type Ca2+ signaling.
Nature communications - 21 Mar 2018
Dindas Julian, Scherzer Sönke, Roelfsema M Rob G, von Meyer Katharina, Müller Heike M, Al-Rasheid K A S, Palme Klaus, Dietrich Petra, Becker Dirk, Bennett Malcolm J, Hedrich Rainer
Abstract excerpt
Auxin is a key regulator of plant growth and development, but the causal relationship between hormone transport and root responses remains unresolved. Here we describe auxin uptake, together with early steps in signaling, in Arabidopsis root hairs. Using intracellular microelectrodes we show membrane depolarization, in response to IAA in a concentration- and pH-dependent manner. This depolarization is strongly...
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