Potential of an Antagonistic Bacterium Serratia marcescens Strain B2 for the Biological Control of Cucumber Damping-Off Disease

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概要

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• The cell suspension (ca. 10<SUP>9</SUP> CFU/ml) of an antagonistic bacterium Serratia marcescens strain B2 was inoculated into the soil of the cucumber rhizosphere. The pathogen Rhizoctonia solani Kühn AG-4, which causes damping-off disease, was challenge-inoculated to the cucumber seedlings. Disease incidence with bacterial treatment was reduced to about 45% compared with that of the untreated control. The strain B2 survived in the soil of the rhizosphere under glasshouse conditions at ca. 10<SUP>6</SUP> to 10<SUP>7</SUP> CFU/g soil for 4 wk after application. Production of lytic enzyme chitinases and antibiotic prodigiosin by the strain B2 was enhanced under the presence of fungal hyphae. These results suggested that the strain B2 has a potential as an effective and long-lasting biological control agent to deal with cucumber damping-off disease.

• 日本防菌防黴学会の論文

著者

• Nakajima Masami

  School Of Agriculture Ibaraki University

• SOMEYA Nobutaka

  School of Agriculture, Ibaraki University

• Akutsu Katsumi

  School Of Agriculture Ibaraki University

関連論文

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• Response of transgenic cucumber expressing a rice class I chitinase gene to two fungal pathogens with different infectivities
• Functional Analysis of an ATP-Binding Cassette Transporter Gene in Botrytis cinerea by Gene Disruption
• Influence of rice-isolated bacteria on chitinase production by the biocontrol bacterium Serratia marcescens strain B2 and the genetically modified rice epiphytic bacterium
• Effects of light conditions on prodigiosin stability in the biocontrol bacterium Serratia marcescens strain B2
• Mechanisms of Bactericide Resistance in Phytopathogenic Bacteria(Abstracts of the Research by the Winners of the Young Scientist Award)
• Co-inoculation of an Antibiotic-Producing Bacterium and a Lytic Enzyme-Producing Bacterium for the Biocontrol of Tomato Wilt Caused by Fusarium oxysporum f. sp. lycopersici
• Potential of an Antagonistic Bacterium Serratia marcescens Strain B2 for the Biological Control of Cucumber Damping-Off Disease
• Synergistic Antifungal Activity of the Culture Filtrates of Serratia marcescens Strain B2 and Chemical Fungicides against the Sclerotial Viability of the Rice Sheath Blight Pathogen, Rhizoctonia solani

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