Inhibition of broomrape germination by 2,4-diacetylphloroglucinol produced by environmental Pseudomonas.
Journal
Microbial biotechnology
ISSN: 1751-7915
Titre abrégé: Microb Biotechnol
Pays: United States
ID NLM: 101316335
Informations de publication
Date de publication:
Dec 2023
Dec 2023
Historique:
revised:
11
08
2023
received:
04
05
2023
accepted:
15
08
2023
medline:
30
11
2023
pubmed:
28
10
2023
entrez:
28
10
2023
Statut:
ppublish
Résumé
Parasitic weeds such as broomrapes (Phelipanche ramosa and Orobanche cumana) cause severe damage to crops and their development must be controlled. Given that phloroglucinol compounds (PGCs) produced by environmental Pseudomonas could be toxic towards certain plants, we assessed the potential herbicidal effect of the bacterial model Pseudomonas ogarae F113, a PGCs-producing bacterium, on parasitic weed. By combining the use of a mutagenesis approach and of pure PGCs, we evaluated the in vitro effect of PGC-produced by P. ogarae F113 on broomrape germination and assessed the protective activity of a PGC-producing bacteria on oilseed rape (Brassica napus) against P. ramosa in non-sterile soils. We showed that the inhibition of the germination depends on the PGCs molecular structure and their concentrations as well as the broomrape species and pathovars. This inhibition caused by the PGCs is irreversible, causing a brown coloration of the broomrape seeds. The inoculation of PGCs-producing bacteria limited the broomrape infection of P. ramosa, without affecting the host growth. Moreover, elemental profiling analysis of oilseed rape revealed that neither F113 nor applied PGCs affected the nutrition capacity of the oilseed rape host. Our study expands the knowledge on plant-beneficial Pseudomonas as weed biocontrol agents and opens new avenues for the development of natural bioherbicides to enhance crop yield.
Identifiants
pubmed: 37897154
doi: 10.1111/1751-7915.14336
pmc: PMC10686154
doi:
Substances chimiques
2,4-diacetylphloroglucinol
8XV4YYO3WN
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2313-2325Subventions
Organisme : Agence Nationale de la Recherche
ID : ANR-19-ECOM-0002 WeedsBiocontrol
Organisme : maturation grant from the Pulsalys Technology Transfer Acceleration Company
Organisme : Swiss National Centre of Competence in Research (NCCR) Microbiomes
ID : no. 51NF40_180575
Informations de copyright
© 2023 The Authors. Microbial Biotechnology published by Applied Microbiology International and John Wiley & Sons Ltd.
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