Bacteria with Phosphate Solubilizing Capacity Alter Mycorrhizal Fungal Growth Both Inside and Outside the Root and in the Presence of Native Microbial Communities.

Détails

Ressource 1Télécharger: BIB_BCF59F10619E.P001.pdf (3040.49 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_BCF59F10619E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Bacteria with Phosphate Solubilizing Capacity Alter Mycorrhizal Fungal Growth Both Inside and Outside the Root and in the Presence of Native Microbial Communities.
Périodique
PloS one
Auteur(s)
Ordoñez Y.M., Fernandez B.R., Lara L.S., Rodriguez A., Uribe-Vélez D., Sanders I.R.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2016
Peer-reviewed
Oui
Volume
11
Numéro
6
Pages
e0154438
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
Arbuscular mycorrhizal fungi (AMF) and phosphate solubilizing Pseudomonas bacteria (PSB) could potentially interact synergistically because PSB solubilize phosphate into a form that AMF can absorb and transport to the plant. However, very little is known about the interactions between these two groups of microorganisms and how they influence the growth of each other. We tested whether different strains of bacteria, that have the capacity to solubilize phosphate, are able to grow along AMF hyphae and differentially influence the growth of AMF both outside the roots of carrot in in vitro conditions and inside the roots of potato in the presence of a microbial community. We found strong effects of AMF on the growth of the different bacterial strains. Different bacterial strains also had very strong effects on the growth of AMF extraradical hyphae outside the roots of carrot and on colonization of potato roots by AMF. The differential effects on colonization occurred in the presence of a microbial community. Our results show that these two important groups of rhizosphere microorganisms indeed interact with each other. Such interactions could potentially lead to synergistic effects between the two groups but this could depend on whether the bacteria truly solubilize phosphate in the rhizosphere in the presence of microbial communities.

Mots-clé
Daucus carota/growth & development, Daucus carota/metabolism, Daucus carota/microbiology, Mycorrhizae/growth & development, Mycorrhizae/metabolism, Phosphates/metabolism, Plant Roots/microbiology, Pseudomonas/metabolism, Rhizosphere, Soil Microbiology, Symbiosis/genetics
Pubmed
Web of science
Open Access
Oui
Création de la notice
29/04/2016 16:01
Dernière modification de la notice
20/08/2019 15:31
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