Transcriptomics

Dataset Information

3

Transcription profiling by array of Pseudomonas aeruginosa in a rhizopsphere during phosphate limitation conditions


ABSTRACT: Plants and rhizosphere microbes rely closely on each other, with plants supplying carbon to bacteria in root exudates, and bacteria mobilizing soil-bound phosphate for plant nutrition. When the phosphate supply becomes limiting for plant growth, the composition of root exudation changes, affecting rhizosphere microbial communities and microbially-mediated nutrient fluxes. To evaluate how plant phosphate deprivation affects rhizosphere bacteria, Lolium perenne seedlings were root-inoculated with Pseudomonas aeruginosa 7NR, and grown in axenic microcosms under different phosphate regimes (330 uM vs 3-6 uM phosphate). The effect of biological nutrient limitation was examined by DNA microarray studies of rhizobacterial gene expression.

ORGANISM(S): Pseudomonas aeruginosa  

SUBMITTER: Leo Zeef  

PROVIDER: E-MEXP-2812 | ArrayExpress | 2011-07-01

REPOSITORIES: ArrayExpress

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