Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms7030
Title: The Arabidopsis alkaline ceramidase TOD1 is a key turgor pressure regulator in plant cells
Authors: Chen, L.-Y
Shi, D.-Q
Zhang, W.-J
Tang, Z.-S
Liu, J 
Yang, W.-C
Keywords: abscisic acid
agarose
alkaline ceramidase
alkaline ceramidase TOD1
sphingosine 1 phosphate
unclassified drug
alkaline ceramidase
Arabidopsis protein
lysophospholipid
sphingosine
sphingosine 1-phosphate
abscisic acid
dicotyledon
enzyme activity
fungus
growth rate
membrane
plant
pollen
stomatal conductance
Arabidopsis
Article
controlled study
Golgi complex
growth retardation
guard cell
nonhuman
pistil
plant cell
pollen tube
silique
turgor pressure
wild type
analogs and derivatives
Arabidopsis
enzymology
metabolism
plant stoma
signal transduction
Arabidopsis
Fungi
Alkaline Ceramidase
Arabidopsis
Arabidopsis Proteins
Lysophospholipids
Plant Stomata
Pollen Tube
Signal Transduction
Sphingosine
Issue Date: 2015
Publisher: Nature Publishing Group
Citation: Chen, L.-Y, Shi, D.-Q, Zhang, W.-J, Tang, Z.-S, Liu, J, Yang, W.-C (2015). The Arabidopsis alkaline ceramidase TOD1 is a key turgor pressure regulator in plant cells. Nature Communications 6 : 6030. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms7030
Rights: Attribution 4.0 International
Abstract: Turgor pressure plays pivotal roles in the growth and movement of walled cells that make up plants and fungi. However, the molecular mechanisms regulating turgor pressure and the coordination between turgor pressure and cell wall remodelling for cell growth remain poorly understood. Here, we report the characterization of Arabidopsis TurgOr regulation Defect 1 (TOD1), which is preferentially expressed in pollen tubes and silique guard cells. We demonstrate that TOD1 is a Golgi-localized alkaline ceramidase. tod1 mutant pollen tubes have higher turgor than wild type and show growth retardation both in pistils and in agarose medium. In addition, tod1 guard cells are insensitive to abscisic acid (ABA)-induced stomatal closure, whereas sphingosine-1-phosphate, a putative downstream component of ABA signalling and product of alkaline ceramidases, promotes closure in both wild type and tod1. Our data suggest that TOD1 acts in turgor pressure regulation in both guard cells and pollen tubes. © 2015 Macmillan Publishers Limited. All rights reserved.
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/177765
ISSN: 20411723
DOI: 10.1038/ncomms7030
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1038_ncomms7030.pdf1.28 MBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

29
checked on Jul 25, 2021

Page view(s)

72
checked on Jul 30, 2021

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons