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

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State: Public
Version: Final published version
Serval ID
serval:BIB_BCF59F10619E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Bacteria with Phosphate Solubilizing Capacity Alter Mycorrhizal Fungal Growth Both Inside and Outside the Root and in the Presence of Native Microbial Communities.
Journal
PloS one
Author(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
Publication state
Published
Issued date
2016
Peer-reviewed
Oui
Volume
11
Number
6
Pages
e0154438
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
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.

Keywords
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
Yes
Create date
29/04/2016 16:01
Last modification date
20/08/2019 15:31
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