serval:BIB_BCF59F10619E
Bacteria with Phosphate Solubilizing Capacity Alter Mycorrhizal Fungal Growth Both Inside and Outside the Root and in the Presence of Native Microbial Communities.
10.1371/journal.pone.0154438
000377218700003
27253975
Ordoñez
Y.M.
author
Fernandez
B.R.
author
Lara
L.S.
author
Rodriguez
A.
author
Uribe-Vélez
D.
author
Sanders
I.R.
author
article
2016
PloS one
1932-6203
1932-6203
journal
11
6
e0154438
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.
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
eng
60_published
true
peer-reviewed
Publication types: Journal Article
Publication Status: epublish
University of Lausanne
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