Biological Control of Damping-Off of Tomato Seedlings and Cucumber Phomopsis Root Rot by Bacillus subtilis RB14-C
ISSN | 00213551 |
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書誌レコードID(総合目録DB) | AA0068709X |
Bacillus subtilis RB14-C, which is a streptomycin resistant mutant of B. subtilis RB14 isolated from compost, produces an antifungal peptide, iturin A, and was evaluated for its suppressive ability against damping-off of tomato seedlings and Phomopsis root rot of cucumber. In damping-off disease of tomato seedlings caused by Rhizoctonia solani, RB14-C cell suspension treatment did not suppress the disease occurrence whereas germinated seed treatment of the RB14-C cells reduced the occurrence of the damping-off. In both treatments, iturin A could not be detected from the treated soil. In the Phomopsis root rot of cucumber, root immersion treatment of cucumber seedlings with RB14-C cell suspension at the time of transplanting effectively suppressed the root rot, resulting in growth recovery 50 days after the treatment even though the initial growth was retarded due to the Phomopsis infection. These results suggest that germinated seed treatment of RB14-C cells and root immersion treatment with RB14-C cell suspension can be applied as promising biological control practices of the damping-off of tomato seedlings and the cucumber Phomopsis root rot, respectively.
刊行年月日 | |
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作成者 | KITA Nobuhiro OHYA Takeshi UEKUSA Hidetoshi NOMURA Ken MANAGO Masahumi SHODA Makoto |
著者キーワード |
soil-borne disease combined application root immersion treatment |
公開者 | Japan International Research Center for Agricultural Sciences |
オンライン掲載日 | |
国立情報学研究所メタデータ主題語彙集(資源タイプ) | Journal Article |
巻 | 39 |
号 | 2 |
開始ページ | 109 |
終了ページ | 114 |
DOI | 10.6090/jarq.39.109 |
権利 | Japan International Research Center for Agricultural Sciences |
言語 | eng |