Genes Involved in Cyclic Lipopeptide Production Are Important for Seed and Straw Colonization by Pseudomonas sp. Strain DSS73
| Autor: | Tommy Harder Nielsen, Michael Hansen, Birgit Koch, Jan Tind Sørensen, Ole Nybroe |
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| Rok vydání: | 2005 |
| Předmět: |
Lipoproteins
Bulk soil Peptides Cyclic Plant Roots Applied Microbiology and Biotechnology Microbial Ecology Microbiology chemistry.chemical_compound Bacterial Proteins Pseudomonas Colonization Peptide Synthases Soil Microbiology Ecology biology food and beverages Lipopeptide Hordeum Gene Expression Regulation Bacterial Straw biology.organism_classification chemistry Seeds Pseudomonadales Sugar beet Beta vulgaris Soil microbiology Transcription Factors Food Science Biotechnology |
| Zdroj: | Applied and Environmental Microbiology. 71:4112-4116 |
| ISSN: | 1098-5336 0099-2240 |
| DOI: | 10.1128/aem.71.7.4112-4116.2005 |
| Popis: | Survival in natural bulk soil and colonization of sugar beet seeds and barley straw residues were determined for Pseudomonas sp. strain DSS73 and Tn 5 mutants in amsY (encoding a peptide synthetase involved in production of the cyclic lipopeptide amphisin) and gacS (encoding the sensory kinase of the two-component GacA/GacS regulatory system). No differences in survival or growth in response to carbon amendment (citrate) were observed in bulk soil. However, both mutants were impaired in their colonization of sugar beet seeds and barley straw residues by an inoculum established in the bulk soil. The two mutants had comparable colonization phenotypes, suggesting that amphisin production is more important for colonization than other gacS -controlled traits. |
| Databáze: | OpenAIRE |
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