High temperature perception in leaves promotes vascular regeneration and graft formation in distant tissues.
Arabidopsis
/ genetics
Arabidopsis Proteins
/ genetics
Basic Helix-Loop-Helix Transcription Factors
/ genetics
Biological Transport
/ genetics
Cotyledon
/ genetics
Cytochrome P-450 Enzyme System
/ genetics
Gene Expression Regulation, Plant
Hot Temperature
Hypocotyl
/ metabolism
Indoleacetic Acids
/ metabolism
Solanum lycopersicum
/ physiology
Mixed Function Oxygenases
/ genetics
Plant Leaves
/ genetics
Plants, Genetically Modified
Regeneration
/ genetics
Signal Transduction
/ genetics
Arabidopsis thaliana
Auxin transport
Grafting
Parasitic plants
Regeneration
Temperature sensing
Vascular biology
Journal
Development (Cambridge, England)
ISSN: 1477-9129
Titre abrégé: Development
Pays: England
ID NLM: 8701744
Informations de publication
Date de publication:
01 03 2022
01 03 2022
Historique:
received:
06
08
2021
accepted:
21
01
2022
pubmed:
27
2
2022
medline:
9
3
2022
entrez:
26
2
2022
Statut:
ppublish
Résumé
Cellular regeneration in response to wounding is fundamental to maintain tissue integrity. Various internal factors including hormones and transcription factors mediate healing, but little is known about the role of external factors. To understand how the environment affects regeneration, we investigated the effects of temperature upon the horticulturally relevant process of plant grafting. We found that elevated temperatures accelerated vascular regeneration in Arabidopsis thaliana and tomato grafts. Leaves were crucial for this effect, as blocking auxin transport or mutating PHYTOCHROME INTERACTING FACTOR 4 (PIF4) or YUCCA2/5/8/9 in the cotyledons abolished the temperature enhancement. However, these perturbations did not affect grafting at ambient temperatures, and temperature enhancement of callus formation and tissue adhesion did not require PIF4, suggesting leaf-derived auxin specifically enhanced vascular regeneration in response to elevated temperatures. We also found that elevated temperatures accelerated the formation of inter-plant vascular connections between the parasitic plant Phtheirospermum japonicum and host Arabidopsis, and this effect required shoot-derived auxin from the parasite. Taken together, our results identify a pathway whereby local temperature perception mediates long distance auxin signaling to modify regeneration, grafting and parasitism. This article has an associated 'The people behind the papers' interview.
Identifiants
pubmed: 35217857
pii: 274539
doi: 10.1242/dev.200079
pmc: PMC8959136
pii:
doi:
Substances chimiques
Arabidopsis Proteins
0
Basic Helix-Loop-Helix Transcription Factors
0
Indoleacetic Acids
0
PIF4 protein, Arabidopsis
0
Cytochrome P-450 Enzyme System
9035-51-2
Mixed Function Oxygenases
EC 1.-
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2022. Published by The Company of Biologists Ltd.
Déclaration de conflit d'intérêts
Competing interests The authors declare no competing or financial interests.
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