KAI2 promotes Arabidopsis root hair elongation at low external phosphate by controlling local accumulation of AUX1 and PIN2.
AUX1
Arabidopsis thaliana
KAI2
PIN
auxin
ethylene
karrikin
root hairs
strigolactone
Journal
Current biology : CB
ISSN: 1879-0445
Titre abrégé: Curr Biol
Pays: England
ID NLM: 9107782
Informations de publication
Date de publication:
10 01 2022
10 01 2022
Historique:
received:
24
05
2021
revised:
17
09
2021
accepted:
20
10
2021
pubmed:
11
11
2021
medline:
12
4
2022
entrez:
10
11
2021
Statut:
ppublish
Résumé
Root hair (RH) growth to increase the absorptive root surface area is a key adaptation of plants to limiting phosphate availability in soils. Despite the importance of this trait, especially for seedling survival, little is known about the molecular events connecting phosphate starvation sensing and RH growth regulation. KARRIKIN INSENSITIVE2 (KAI2), an α/β-hydrolase receptor of a yet-unknown plant hormone ("KAI2-ligand" [KL]), is required for RH elongation.
Identifiants
pubmed: 34758285
pii: S0960-9822(21)01467-6
doi: 10.1016/j.cub.2021.10.044
pii:
doi:
Substances chimiques
3-methyl-2H-furo(2,3-c)pyran-2-one
0
Arabidopsis Proteins
0
Furans
0
Indoleacetic Acids
0
Phosphates
0
Pyrans
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
228-236.e3Informations de copyright
Copyright © 2021 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no competing interests.