Ecological and mechanistic insights into the direct and indirect antimicrobial properties of Bacillus subtilis lipopeptides on plant pathogens
| Autor: | L. Novitsky, Tyler J. Avis, Justin Falardeau, C. Wise |
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| Rok vydání: | 2013 |
| Předmět: |
Genus Bacillus
Food Chain Ecology Microorganism Microbiota fungi General Medicine Bacillus subtilis Biology bacterial infections and mycoses biology.organism_classification Antimicrobial Biochemistry Microbiology chemistry.chemical_compound Lipopeptides chemistry Anti-Infective Agents Host plants Plant Immunity Surfactin Ecology Evolution Behavior and Systematics Function (biology) Plant Diseases |
| Zdroj: | Journal of chemical ecology. 39(7) |
| ISSN: | 1573-1561 |
| Popis: | Members of the genus Bacillus produce a wide variety of antimicrobial compounds. Cyclic lipopeptides (CLP) produced by Bacillus subtilis strains have been shown to protect host plants from a numbers of pathogens. The representative families of these CLP (surfactins, fengycins, and iturins) share a polypeptide ring linked to a lipid tail of varying length. CLP provide plant protection through a variety of unique mechanisms. Members of the surfactin and fengycin families elicit induced systemic resistance in certain host plants, and they also function by directly affecting the biological membranes of bacterial and fungal pathogens, mainly resulting in membrane pore formation. Specific pore forming mechanisms differ between CLP families, causing differential activities. CLP also may aid in enhanced B. subtilis colonization of the plant environment in addition to potentially preventing the adhesion of competitive microorganisms. Several recent studies have highlighted the control of plant pathogens by CLP-producing B. subtilis strains. Strong ecological advantages through multifaceted activities of CLP provide these strains with immense promise in controlling pathogens in a variety of plant ecosystems. |
| Databáze: | OpenAIRE |
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