Glycerol-3-phosphate mediates rhizobia-induced systemic signaling in soybean.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
22 11 2019
22 11 2019
Historique:
received:
04
04
2019
accepted:
24
10
2019
entrez:
24
11
2019
pubmed:
24
11
2019
medline:
3
3
2020
Statut:
epublish
Résumé
Glycerol-3-phosphate (G3P) is a well-known mobile regulator of systemic acquired resistance (SAR), which provides broad spectrum systemic immunity in response to localized foliar pathogenic infections. We show that G3P-derived foliar immunity is also activated in response to genetically-regulated incompatible interactions with nitrogen-fixing bacteria. Using gene knock-down we show that G3P is essential for strain-specific exclusion of non-desirable root-nodulating bacteria and the associated foliar pathogen immunity in soybean. Grafting studies show that while recognition of rhizobium incompatibility is root driven, bacterial exclusion requires G3P biosynthesis in the shoot. Biochemical analyses support shoot-to-root transport of G3P during incompatible rhizobia interaction. We describe a root-shoot-root signaling mechanism which simultaneously enables the plant to exclude non-desirable nitrogen-fixing rhizobia in the root and pathogenic microbes in the shoot.
Identifiants
pubmed: 31757957
doi: 10.1038/s41467-019-13318-8
pii: 10.1038/s41467-019-13318-8
pmc: PMC6876567
doi:
Substances chimiques
Glycerophosphates
0
Plant Proteins
0
alpha-glycerophosphoric acid
9NTI6P3O4X
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
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