Publication Date:
2011-05-10
Description:
Disease-suppressive soils are exceptional ecosystems in which crop plants suffer less from specific soil-borne pathogens than expected owing to the activities of other soil microorganisms. For most disease-suppressive soils, the microbes and mechanisms involved in pathogen control are unknown. By coupling PhyloChip-based metagenomics of the rhizosphere microbiome with culture-dependent functional analyses, we identified key bacterial taxa and genes involved in suppression of a fungal root pathogen. More than 33,000 bacterial and archaeal species were detected, with Proteobacteria, Firmicutes, and Actinobacteria consistently associated with disease suppression. Members of the gamma-Proteobacteria were shown to have disease-suppressive activity governed by nonribosomal peptide synthetases. Our data indicate that upon attack by a fungal root pathogen, plants can exploit microbial consortia from soil for protection against infections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mendes, Rodrigo -- Kruijt, Marco -- de Bruijn, Irene -- Dekkers, Ester -- van der Voort, Menno -- Schneider, Johannes H M -- Piceno, Yvette M -- DeSantis, Todd Z -- Andersen, Gary L -- Bakker, Peter A H M -- Raaijmakers, Jos M -- New York, N.Y. -- Science. 2011 May 27;332(6033):1097-100. doi: 10.1126/science.1203980. Epub 2011 May 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, Wageningen 6700 EE, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21551032" target="_blank"〉PubMed〈/a〉
Keywords:
Actinobacteria/genetics/isolation & purification/physiology
;
*Antibiosis
;
Archaea/classification/genetics/isolation & purification/physiology
;
Bacteria/classification/genetics/isolation & purification
;
Beta vulgaris/microbiology
;
*Metagenome
;
*Microbial Consortia
;
Molecular Sequence Data
;
Oligonucleotide Array Sequence Analysis
;
Peptide Synthases/genetics/metabolism
;
Plant Diseases/microbiology/*prevention & control
;
Plant Roots/microbiology
;
Proteobacteria/genetics/isolation & purification/physiology
;
Pseudomonadaceae/genetics/isolation & purification/physiology
;
Rhizoctonia/*physiology
;
*Rhizosphere
;
*Soil Microbiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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