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Auxin-Induced plasma membrane depolarization is regulated by Auxin transport and not by AUXIN BINDING PROTEIN1
Please always quote using this URN: urn:nbn:de:bvb:20-opus-195914
- Auxin is a molecule, which controls many aspects of plant development through both transcriptional and non-transcriptional signaling responses. AUXIN BINDING PROTEIN1 (ABP1) is a putative receptor for rapid non-transcriptional auxin-induced changes in plasma membrane depolarization and endocytosis rates. However, the mechanism of ABP1-mediated signaling is poorly understood. Here we show that membrane depolarization and endocytosis inhibition are ABP1-independent responses and that auxin-induced plasma membrane depolarization is insteadAuxin is a molecule, which controls many aspects of plant development through both transcriptional and non-transcriptional signaling responses. AUXIN BINDING PROTEIN1 (ABP1) is a putative receptor for rapid non-transcriptional auxin-induced changes in plasma membrane depolarization and endocytosis rates. However, the mechanism of ABP1-mediated signaling is poorly understood. Here we show that membrane depolarization and endocytosis inhibition are ABP1-independent responses and that auxin-induced plasma membrane depolarization is instead dependent on the auxin influx carrier AUX1. AUX1 was itself not involved in the regulation of endocytosis. Auxin-dependent depolarization of the plasma membrane was also modulated by the auxin efflux carrier PIN2. These data establish a new connection between auxin transport and non-transcriptional auxin signaling.…
Author: | Ivan A. Paponov, Julian Dindas , Elżbieta Król , Tatyana Friz, Vadym Budnyk, William Teale, Martina Paponov, Rainer Hedrich , Klaus Palme |
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URN: | urn:nbn:de:bvb:20-opus-195914 |
Document Type: | Journal article |
Faculties: | Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften |
Language: | English |
Parent Title (English): | Frontiers in Plant Science |
ISSN: | 1664-462X |
Year of Completion: | 2019 |
Volume: | 9 |
Source: | Frontiers Plant Science (2019) 9:1953. doi: 10.3389/fpls.2018.01953 |
DOI: | https://doi.org/10.3389/fpls.2018.01953 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Tag: | ABP1; AUX1; auxin; endocytosis; plasma membrane depolarization |
Release Date: | 2020/08/18 |
Date of first Publication: | 2019/01/17 |
EU-Project number / Contract (GA) number: | 250194 |
OpenAIRE: | OpenAIRE |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |