Biological control of Fusarium wilt by Bacillus amyloliquefaciens IUMC7 isolated from mushroom compost
Sotoyama, K. ((Ibaraki University, Ibaraki (Japan). College of Agriculture, Laboratory of Plant Pathology), (Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo (Japan). United Graduate School of Agricultural Science)) | Akutsu, K. | Nakajima, M.
Bacillus amyloliquefaciens IUMC7 isolated from mushroom compost inhibited growth of Fusarium oxysporum f. sp. lycopersici (FOL) on culture plates, and a culture supernatant of IUMC7 inhibited in vitro germ tube elongation of FOL. When compared with control soils, mushroom compost inoculated with IUMC7 significantly reduced disease severity caused by FOL in tomato plants. PCR tests for expression of PR genes indicated that IUMC7 did not induce resistance in tomato plants. These results suggested that the suppression of disease was mainly caused by antimicrobial compounds produced by IUMC7.
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