2009 Fiscal Year Final Research Report
Effect of mycorrhizal growth stimulatory compounds on spore production and biocontrol of soil-borne plant pathogens in fruit orchards
| Project/Area Number |
19780022
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | Kyoto Prefectural University |
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Principal Investigator |
CRUZ Andre Freire Kyoto Prefectural University, 生命環境科学研究科, 講師 (80405240)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 菌根菌 / 細菌 / 物質 / 生物防除 / 果樹栽培 |
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| Research Abstract |
Three kinds of bacteria were isolated from arbuscular mycorrhizal spores and identified as Bacillus sp., Bacillus thuringiensis, and Paenibacillus rhizospherae. These bacteria also functioned on biocontrol of soil-borne plant pathogens Fusarium oxysporum, Rosellinia necatrix, Rhizoctonia solani and Pythium ultimum. Moreover, they were effective on phosphorus solubilization, ethylene production, nitrogenase activity, and stimulation of mycorrhizae hyphal growth in vitro. In addition, fresh samples of spores and hyphae were photographed using an in situ scanning electron microscope, where some bacterial slimes were detected on hyphae and spores.
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