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https://hdl.handle.net/2440/80044
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Type: | Journal article |
Title: | Role of the Arabidopsis PIN6 auxin transporter in auxin homeostasis and auxin-mediated development |
Author: | Cazzonelli, C. Vanstraelen, M. Simon, S. Yin, K. Carron-Arthur, A. Nisar, N. Tarle, G. Cuttriss, A. Searle, I. Benkova, E. Mathesius, U. Masle, J. Friml, J. Pogson, B. |
Citation: | PLoS One, 2013; 8(7):1-14 |
Publisher: | Public Library of Science |
Issue Date: | 2013 |
ISSN: | 1932-6203 1932-6203 |
Editor: | Muday, G. |
Statement of Responsibility: | Christopher I. Cazzonelli, Marleen Vanstraelen, Sibu Simon, Kuide Yin, Ashley Carron-Arthur, Nazia Nisar, Gauri Tarle, Abby J. Cuttriss¤, Iain R. Searle, Eva Benkova, Ulrike Mathesius, Josette Masle, Jiří Friml, Barry J. Pogson |
Abstract: | Plant-specific PIN-formed (PIN) efflux transporters for the plant hormone auxin are required for tissue-specific directional auxin transport and cellular auxin homeostasis. The Arabidopsis PIN protein family has been shown to play important roles in developmental processes such as embryogenesis, organogenesis, vascular tissue differentiation, root meristem patterning and tropic growth. Here we analyzed roles of the less characterised Arabidopsis PIN6 auxin transporter. PIN6 is auxin-inducible and is expressed during multiple auxin–regulated developmental processes. Loss of pin6 function interfered with primary root growth and lateral root development. Misexpression of PIN6 affected auxin transport and interfered with auxin homeostasis in other growth processes such as shoot apical dominance, lateral root primordia development, adventitious root formation, root hair outgrowth and root waving. These changes in auxin-regulated growth correlated with a reduction in total auxin transport as well as with an altered activity of DR5-GUS auxin response reporter. Overall, the data indicate that PIN6 regulates auxin homeostasis during plant development. |
Keywords: | Arabidopsis Plant Roots Indoleacetic Acids Membrane Transport Proteins Arabidopsis Proteins Gene Expression Regulation, Plant |
Rights: | © 2013 Cazzonelli et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
DOI: | 10.1371/journal.pone.0070069 |
Grant ID: | http://purl.org/au-research/grants/arc/FT100100669 http://purl.org/au-research/grants/arc/FT100100669 |
Published version: | http://dx.doi.org/10.1371/journal.pone.0070069 |
Appears in Collections: | Aurora harvest 4 Molecular and Biomedical Science publications |
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hdl_80044.pdf | Published version | 8.8 MB | Adobe PDF | View/Open |
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