Mechanisms of interaction between ectomycorrhizal fungi and the mycorrhiza helper bacterium Pseudomonas fluorescens BBc6R8

ABSTRACT: Mycorrhiza helper bacteria (MHB) promote the formation of ectomycorrhizae between tree roots and ectomycorrhizal fungi. Despite the high relevance of MHB for forestry and for sustainable tree production in tree nurseries, little is known about the properties of the bacteria that contribute to their helper abilities. The MHB strain Pseudomonas fluorescens BBc6R8 is used as a model to study the mechanisms of the helper effect. We took advantage of new technologies to obtain, for the first time, the whole genome sequence of an MHB. Analyses reveal an important plasticity of the genome with numerous functions acquired by horizontal gene tranfer. Genome mining was combined with transcriptomic and mutagenesis approaches to reveal molecular determinants of the helper effect. The data suggest that

ORGANISM(S): Pseudomonas fluorescens BBc6R8

SUBMITTER: Annegret Kohler 

PROVIDER: E-GEOD-38243 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress