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@article{1694017,
author = {Gelová, Zuzana and Gallei, Michelle and Pernisová, Markéta and Brunoud, Géraldine and Zhang, Xixi and Glanc, Matouš and Li, Lanxin and Michalko, Jaroslav and Pavlovičová, Zlata and Verstraeten, Inge and Han, Huibin and Hajný, Jakub and Hauschild, Robert and Čovanová, Milada and Zwiewka, Marta and Hoermayer, Lukas and Fendrych, Matyáš and Xu, Tongda and Vernoux, Teva and Friml, Jiří},
article_location = {Ireland},
article_number = {February},
doi = {http://dx.doi.org/10.1016/j.plantsci.2020.110750},
keywords = {AUXIN BINDING PROTEIN 1 (ABP1); Auxin; Plant development; Auxin signaling},
language = {eng},
issn = {0168-9452},
journal = {Plant Science},
title = {Developmental roles of Auxin Binding Protein 1 in Arabidopsis thaliana.},
url = {https://www.sciencedirect.com/science/article/pii/S0168945220303563},
volume = {303},
year = {2021}
}
TY - JOUR
ID - 1694017
AU - Gelová, Zuzana - Gallei, Michelle - Pernisová, Markéta - Brunoud, Géraldine - Zhang, Xixi - Glanc, Matouš - Li, Lanxin - Michalko, Jaroslav - Pavlovičová, Zlata - Verstraeten, Inge - Han, Huibin - Hajný, Jakub - Hauschild, Robert - Čovanová, Milada - Zwiewka, Marta - Hoermayer, Lukas - Fendrych, Matyáš - Xu, Tongda - Vernoux, Teva - Friml, Jiří
PY - 2021
TI - Developmental roles of Auxin Binding Protein 1 in Arabidopsis thaliana.
JF - Plant Science
VL - 303
IS - February
SP - 1-17
EP - 1-17
PB - Elsevier
SN - 01689452
KW - AUXIN BINDING PROTEIN 1 (ABP1)
KW - Auxin
KW - Plant development
KW - Auxin signaling
UR - https://www.sciencedirect.com/science/article/pii/S0168945220303563
L2 - https://www.sciencedirect.com/science/article/pii/S0168945220303563
N2 - Auxin is a major plant growth regulator, but current models on auxin perception and signaling cannot explain the whole plethora of auxin effects, in particular those associated with rapid responses. A possible candidate for a component of additional auxin perception mechanisms is the AUXIN BINDING PROTEIN 1 (ABP1), whose function in planta remains unclear. Here we combined expression analysis with gain- and loss-of-function approaches to analyze the role of ABP1 in plant development. ABP1 shows a broad expression largely overlapping with, but not regulated by, transcriptional auxin response activity. Furthermore, ABP1 activity is not essential for the transcriptional auxin signaling. Genetic in planta analysis revealed that abp1 loss-of-function mutants show largely normal development with minor defects in bolting. On the other hand, ABP1 gain-of-function alleles show a broad range of growth and developmental defects, including root and hypocotyl growth and bending, lateral root and leaf development, bolting, as well as response to heat stress. At the cellular level, ABP1 gain-of-function leads to impaired auxin effect on PIN polar distribution and affects BFA-sensitive PIN intracellular aggregation. The gain-of-function analysis suggests a broad, but still mechanistically unclear involvement of ABP1 in plant development, possibly masked in abp1 loss-of-function mutants by a functional redundancy.
ER -
GELOVÁ, Zuzana, Michelle GALLEI, Markéta PERNISOVÁ, Géraldine BRUNOUD, Xixi ZHANG, Matouš GLANC, Lanxin LI, Jaroslav MICHALKO, Zlata PAVLOVIČOVÁ, Inge VERSTRAETEN, Huibin HAN, Jakub HAJNÝ, Robert HAUSCHILD, Milada ČOVANOVÁ, Marta ZWIEWKA, Lukas HOERMAYER, Matyáš FENDRYCH, Tongda XU, Teva VERNOUX and Jiří FRIML. Developmental roles of Auxin Binding Protein 1 in Arabidopsis thaliana. \textit{Plant Science}. Ireland: Elsevier, 2021, vol.~303, February, p.~1-17. ISSN~0168-9452. Available from: https://dx.doi.org/10.1016/j.plantsci.2020.110750.
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