Strigolactones Play an Important Role in Shaping Exodermal Morphology via a KAI2-Dependent Pathway.
Biological Sciences
Molecular Plant Pathology
Plant Biology
Plant Physiology
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
26 Jul 2019
26 Jul 2019
Historique:
received:
24
02
2019
revised:
19
05
2019
accepted:
14
06
2019
pubmed:
6
7
2019
medline:
6
7
2019
entrez:
6
7
2019
Statut:
ppublish
Résumé
The majority of land plants have two suberized root barriers: the endodermis and the hypodermis (exodermis). Both barriers bear non-suberized passage cells that are thought to regulate water and nutrient exchange between the root and the soil. We learned a lot about endodermal passage cells, whereas our knowledge on hypodermal passage cells (HPCs) is still very scarce. Here we report on factors regulating the HPC number in Petunia roots. Strigolactones exhibit a positive effect, whereas supply of abscisic acid (ABA), ethylene, and auxin result in a strong reduction of the HPC number. Unexpectedly the strigolactone signaling mutant d14/dad2 showed significantly higher HPC numbers than the wild-type. In contrast, its mutant counterpart max2 of the heterodimeric receptor DAD2/MAX2 displayed a significant decrease in HPC number. A mutation in the Petunia karrikin sensor KAI2 exhibits drastically decreased HPC amounts, supporting the hypothesis that the dimeric KAI2/MAX2 receptor is central in determining the HPC number.
Identifiants
pubmed: 31276958
pii: S2589-0042(19)30207-X
doi: 10.1016/j.isci.2019.06.024
pmc: PMC6611997
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
144-154Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.
Références
J Exp Bot. 2000 Sep;51(350):1531-42
pubmed: 11006304
Plant Physiol. 2000 Nov;124(3):1437-48
pubmed: 11080318
J Exp Bot. 2001 Dec;52(365):2245-64
pubmed: 11709575
Development. 2002 Mar;129(5):1131-41
pubmed: 11874909
Plant Cell. 2005 Mar;17(3):746-59
pubmed: 15705953
Plant J. 2007 Oct;52(1):167-74
pubmed: 17711416
Plant J. 2008 Aug;55(4):580-95
pubmed: 18435823
New Phytol. 2008;180(3):696-701
pubmed: 18761635
Nat Rev Microbiol. 2008 Oct;6(10):763-75
pubmed: 18794914
Plant Physiol. 2009 Sep;151(1):400-12
pubmed: 19641034
Curr Opin Plant Biol. 2009 Oct;12(5):556-61
pubmed: 19726222
Genes Dev. 1991 Mar;5(3):438-46
pubmed: 2001843
J Plant Physiol. 2010 May 15;167(8):606-13
pubmed: 20079554
New Phytol. 2010 Jul;187(2):343-54
pubmed: 20487312
Proc Natl Acad Sci U S A. 2011 May 24;108(21):8897-902
pubmed: 21555559
New Phytol. 2012 Apr;194(2):402-15
pubmed: 22296281
Nature. 2012 Mar 07;483(7389):341-4
pubmed: 22398443
Front Plant Sci. 2012 Jan 10;2:115
pubmed: 22645562
Curr Biol. 2012 Nov 6;22(21):2032-6
pubmed: 22959345
New Phytol. 2012 Dec;196(4):1208-16
pubmed: 23025475
J Exp Bot. 2013 Aug;64(11):3225-36
pubmed: 23918964
Plant Physiol. 2014 May 7;165(3):1221-1232
pubmed: 24808100
Front Plant Sci. 2014 Jun 02;5:238
pubmed: 24917869
Chem Biol. 2014 Aug 14;21(8):988-98
pubmed: 25126711
Plant Physiol. 2014 Dec;166(4):2077-90
pubmed: 25293963
PLoS Genet. 2014 Oct 16;10(10):e1004701
pubmed: 25330236
Annu Rev Plant Biol. 2015;66:161-86
pubmed: 25621512
Curr Biol. 2015 Mar 2;25(5):647-55
pubmed: 25683808
Planta. 2015 Jun;241(6):1435-51
pubmed: 25716094
Plant Physiol. 2015 Sep;169(1):138-47
pubmed: 25979917
Science. 2015 Dec 18;350(6267):1521-4
pubmed: 26680197
Cell. 2016 Jan 28;164(3):447-59
pubmed: 26777403
Front Plant Sci. 2016 Jan 08;6:1219
pubmed: 26779242
Front Plant Sci. 2016 Aug 23;7:1260
pubmed: 27602041
Biol Open. 2016 Dec 15;5(12):1806-1820
pubmed: 27793831
Curr Opin Plant Biol. 2017 Oct;39:136-143
pubmed: 28750257
New Phytol. 2018 Jan;217(2):784-798
pubmed: 29083039
Nature. 2018 Mar 22;555(7697):529-533
pubmed: 29539635
NPJ Microgravity. 2018 Oct 17;4:20
pubmed: 30345347
Nat Commun. 2019 Jan 14;10(1):191
pubmed: 30643123