Abstract
Here Fusarium oxysporum was killed in exudates obtained from soil biologically disinfested with ethanol, indicating that physical interaction with soil microorganisms was not essential. Because acetic acid was confirmed to accumulated during the treatment, we evaluated the effect of acetic acid amendment against the pathogen in plastic containers. A drop in the soil redox potential seemed to be correlated with the fungicidal efficacy of acetic acid. Under reductive soil conditions, metal ions such as Mn2+ and Fe2+ formed, and the pathogen was effectively suppressed in Mn2+ and Fe2+ solution. Therefore, Fe2+ and Mn2+ may be the agents that induce suppression of the pathogen during biological soil disinfestation.
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We thank Dr. N. Matsumoto for helpful discussion and polishing this paper. This research work was supported in part by the research and development projects for promoting new policy of agriculture, forestry and fisheries, funded by the Ministry of Agriculture, Forestry and Fisheries of Japan.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10327-011-0358-2.
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Momma, N., Kobara, Y. & Momma, M. Fe2+ and Mn2+, potential agents to induce suppression of Fusarium oxysporum for biological soil disinfestation. J Gen Plant Pathol 77, 331–335 (2011). https://doi.org/10.1007/s10327-011-0336-8
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DOI: https://doi.org/10.1007/s10327-011-0336-8