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- Title
Complete genome sequence of the plant commensal Pseudomonas fluorescens Pf-5.
- Authors
Paulsen, Ian T; Press, Caroline M; Ravel, Jacques; Kobayashi, Donald Y; Myers, Garry S A; Mavrodi, Dmitri V; DeBoy, Robert T; Seshadri, Rekha; Ren, Qinghu; Madupu, Ramana; Dodson, Robert J; Durkin, A Scott; Brinkac, Lauren M; Daugherty, Sean C; Sullivan, Stephen A; Rosovitz, Mary J; Gwinn, Michelle L; Zhou, Liwei; Schneider, Davd J; Cartinhour, Samuel W; Nelson, William C; Weidman, Janice; Watkins, Kisha; Tran, Kevin; Khouri, Hoda; Pierson, Elizabeth A; Pierson, Leland S, 3rd; Thomashow, Linda S; Loper, Joyce E
- Abstract
Pseudomonas fluorescens Pf-5 is a plant commensal bacterium that inhabits the rhizosphere and produces secondary metabolites that suppress soilborne plant pathogens. The complete sequence of the 7.1-Mb Pf-5 genome was determined. We analyzed repeat sequences to identify genomic islands that, together with other approaches, suggested P. fluorescens Pf-5's recent lateral acquisitions include six secondary metabolite gene clusters, seven phage regions and a mobile genomic island. We identified various features that contribute to its commensal lifestyle on plants, including broad catabolic and transport capabilities for utilizing plant-derived compounds, the apparent ability to use a diversity of iron siderophores, detoxification systems to protect from oxidative stress, and the lack of a type III secretion system and toxins found in related pathogens. In addition to six known secondary metabolites produced by P. fluorescens Pf-5, three novel secondary metabolite biosynthesis gene clusters were also identified that may contribute to the biocontrol properties of P. fluorescens Pf-5.
- Publication
Nature biotechnology, 2005, Vol 23, Issue 7, p873
- ISSN
1087-0156
- Publication type
Journal Article
- DOI
10.1038/nbt1110