Detailed Information on Publication Record
2022
ABP1-TMK auxin perception for global phosphorylation and auxin canalization
FRIML, Jiri, Michelle GALLEI, Zuzana GELOVA, Alexander JOHNSON, Ewa MAZUR et. al.Basic information
Original name
ABP1-TMK auxin perception for global phosphorylation and auxin canalization
Authors
FRIML, Jiri, Michelle GALLEI, Zuzana GELOVA, Alexander JOHNSON, Ewa MAZUR, Aline MONZER, Lesia RODRIGUEZ, Mark ROOSJEN, Inge VERSTRAETEN, Branka D ZIVANOVIC, Minxia ZOU, Lukas FIEDLER, Caterina GIANNINI, Peter GRONES, Monika HRTYAN, Walter A KAUFMANN, Andre KUHN, Madhumitha NARASIMHAN, Marek RANDUCH, Nikola RÝDZA (703 Slovakia, guarantor, belonging to the institution), Koji TAKAHASHI, Shutang TAN, Anastasia TEPLOVA, Toshinori KINOSHITA, Dolf WEIJERS and Hana RAKUSOVA
Edition
Nature, LONDON, NATURE PUBLISHING GROUP, 2022, 0028-0836
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10608 Biochemistry and molecular biology
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 64.800
RIV identification code
RIV/00216224:14740/22:00128524
Organization unit
Central European Institute of Technology
UT WoS
000851357500002
Keywords in English
BINDING PROTEIN-1ARABIDOPSISTRANSPORTGRADIENTSCOMPLEXMODULEGROWTH
Tags
International impact, Reviewed
Změněno: 8/10/2024 10:30, Ing. Martina Blahová
Abstract
V originále
The phytohormone auxin triggers transcriptional reprogramming through a well-characterized perception machinery in the nucleus. By contrast, mechanisms that underlie fast effects of auxin, such as the regulation of ion fluxes, rapid phosphorylation of proteins or auxin feedback on its transport, remain unclear(1-3). Whether auxin-binding protein 1 (ABP1) is an auxin receptor has been a source of debate for decades(1,4). Here we show that a fraction of Arabidopsis thaliana ABP1 is secreted and binds auxin specifically at an acidic pH that is typical of the apoplast. ABP1 and its plasma-membrane-localized partner, transmembrane kinase 1 (TMK1), are required for the auxin-induced ultrafast global phospho-response and for downstream processes that include the activation of H+-ATPase and accelerated cytoplasmic streaming. abp1 and tmk mutants cannot establish auxin-transporting channels and show defective auxin-induced vasculature formation and regeneration. An ABP1(M2X) variant that lacks the capacity to bind auxin is unable to complement these defects in abp1 mutants. These data indicate that ABP1 is the auxin receptor for TMK1-based cell-surface signalling, which mediates the global phospho-response and auxin canalization.
Links
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