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ABSTRACT: Alfalfa rhizosphere bacteria

PROVIDER: PRJNA1131606 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29749659.fastq.gz	Fastqsanger.gz
	SRR29749660.fastq.gz	Fastqsanger.gz
	SRR29749661.fastq.gz	Fastqsanger.gz
	SRR29749662.fastq.gz	Fastqsanger.gz
	SRR29749663.fastq.gz	Fastqsanger.gz

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Transcription profiling by array of Rhizobium leguminosarum biovar viciae strain Rlv3841grown in pea, alfalfa or sugarbeet rhizospheres compared to bacteria grown on glucose ammonia AMS medium

Project description:Rhizobium leguminosarum biovar viciae strain Rlv3841 was grown for 7 d in the pea or alfalfa or sugarbeet rhizosphere (plants all 7 d old at inoculation) and compared against bacteria grown on glucose ammonia AMS medium in the laboratory.

2010-08-04 | E-MEXP-2852 | biostudies-arrayexpress

Transcription profiling by array of Rhizobium leguminosarum biovar viciae strain Rlv3841 grown rhizosphere of either pea, alfalfa or sugarbeet

Project description:Rhizobium leguminosarum biovar viciae strain Rlv3841 was grown for 7 days in the rhizosphere of either 7 day old pea, alfalfa or sugarbeet before being harvested.

2010-08-03 | E-MEXP-2849 | biostudies-arrayexpress

Project description:Rhizosphere microbiota of alfalfa (bacteria)

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Project description:Bacteria in lupin and alfalfa rhizosphere soil

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Project description: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.

2011-07-01 | E-MEXP-2812 | biostudies-arrayexpress

Project description:The rhizosphere soil bacteria of alfalfa (Medicago sativa)

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Maize root bacteria degrade host-specialized metabolites through the lactonase BxdA

Project description:Root exudates contain specialised metabolites that affect the plant’s root microbiome. How host-specific microbes cope with these bioactive compounds, and how this ability shapes root microbiomes, remains largely unknown. We investigated how maize root bacteria metabolise benzoxazinoids, the main specialised metabolites of maize. Diverse and abundant bacteria metabolised the major compound in the maize rhizosphere MBOA and formed AMPO. AMPO forming bacteria are enriched in the rhizosphere of benzoxazinoid-producing maize and can use MBOA as carbon source. We identified a novel gene cluster associated with AMPO formation in microbacteria. The first gene in this cluster, bxdA encodes a lactonase that converts MBOA to AMPO in vitro. A deletion mutant of the homologous bxdA genes in the genus Sphingobium, does not form AMPO nor is it able to use MBOA as a carbon source. BxdA was identified in different genera of maize root bacteria. Here we show that plant-specialised metabolites select for metabolisation-competent root bacteria. BxdA represents a novel benzoxazinoid metabolisation gene whose carriers successfully colonize the maize rhizosphere and thereby shape the plant’s chemical environmental footprint

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Project description:Alfalfa rhizosphere fungi

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2007-09-02 | E-MEXP-949 | biostudies-arrayexpress

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Project description:This project is designed for whole transcriptome sequencing of bacteria isolated from Rhizosphere of Wheat Plant, which has its impact on overall plant growth.

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