Project description:Arthrobacter chlorophenolicus A6 is a 4-chlorophenol degrading soil bacterium with high phyllosphere colonization capacity. Till now the genetic basis for the phyllosphere competency of Arthrobacter or other pollutant-degrading bacteria is uncertain. We investigated global gene expression profile of A. chlorophenolicus grown in the phyllosphere of common bean (Phaseolus vulgaris) compared to growth on agar surfaces. We designed transcriptome arrays and investigated which genes had different transcript levels in the phyllosphere of common bean (Phaseolus vulgaris) as compared to agar surfaces. Since water availability is considered an important factor in phyllosphere survival and activity, we included both high and low relative humidity treatments for the phyllosphere-grown cells. In addition, we determined the expression profile under pollutant exposure by the inclusion of two agar surface treatments, i.e. with and without 4-chlorophenol.

2013-06-21 | E-GEOD-48198 | biostudies-arrayexpress

The rhizosphere bacterial communities at the rice seedling

Project description:The rhizosphere bacterial communities at the rice seedling Raw sequence reads

| PRJNA554261 | ENA

Phyllosphere Endophytic Bacterial Communities of Populus trichocarpa

Project description:16S rDNA gene sequencing of the phyllosphere endophytic bacterial communities colonizing wild Populus trichocarpa Raw sequence reads

| PRJNA589182 | ENA

phyllosphere metagenome

Project description:Differential response of rice phyllosphere bacterial communities to long-term field CO2 enrichment

| PRJDB2699 | ENA

phyllosphere metagenome

Project description:Differential response of rice phyllosphere bacterial communities to long-term field CO2 enrichment

| PRJDB2228 | ENA

Untargeted metabolomics study of the effects of phyllosphere synthetic communities on agave tequilana

Project description:We performed an untargeted metabolomic analysis on agave tequilana leaves treated with two phyllosphere synthetic microbial communities (PSMC) using LC-HR-MS/MS. Data-Dependent Acquisition was employed under positive ionization mode. Three cohorts were included; a) non-treated plants; b) treated plants with PFCS (a type of PSMC), and; c) treated plants with PFCT (a type of PSMC). Metabolites were extracted with a solvent mixture of acetonitrile:methanol:ethyl acetate (1:1:1).

2022-04-29 | MSV000089335 | MassIVE

phyllosphere metagenome

Project description:Phyllosphere bacterial communities Targeted Locus (Loci)

| PRJNA217823 | ENA

Dynamic character displacement among a pair of bacterial phyllosphere commensals in situ

Project description:Differences between species promote stable coexistence in a resource-limited environment. These differences can result from interspecies competition leading to character shifts, a process referred to as character displacement. While character displacement is often interpreted as a consequence of genetically fixed trait differences between species, it can also be mediated by phenotypic plasticity in response to the presence of another species. Here, we test whether phenotypic plasticity leads to a shift in proteome allocation during co-occurrence of two bacterial species from the abundant, leaf-colonizing families Sphingomonadaceae and Rhizobiaceae in their natural habitat. Upon mono-colonizing of the phyllosphere, both species exhibit specific and shared protein functions indicating a niche overlap. During co-colonization, quantitative differences in the protein repertoire of both bacterial populations occur as a result of bacterial coexistence in planta. Specifically, the Sphingomonas strain produces enzymes for the metabolization of xylan, while the Rhizobium strain reprograms its metabolism to beta-oxidation of fatty acids fueled via the glyoxylate cycle and adapts its biotin acquisition. We demonstrate the conditional relevance of cross-species facilitation by mutagenesis leading to loss of fitness in competition in planta. Our results show that dynamic character displacement and niche facilitation mediated by phenotypic plasticity can contribute to species coexistence.

2022-05-26 | PXD026619 | Pride

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