Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 71, Issue 7, Pages 1697-1702Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.70110
Keywords
fumiquinones; quinone; Aspergillus fumigatus; nematicide
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New nematicides named fumiquinones A (1) and B (2), together with spinulosin (3), LL-S490 beta (4), and pseurotin A (5), were isolated from Aspergillus fumigatus and their structures were established by spectroscopic methods including 2D-NMR. Compound 1 showed effective nematicidal activities against Bursaphelenchus xylophilus and Pratylenchus penetrans,without inhibiting plant growth except for lettuce seedlings. Compound 2 showed effective nematicidal activity against B. xylophilus, but had no inhibitory activity against P. penetrans. Compounds 3-5 showed effective nematicidal activities against B. xylophilus without any plant growth inhibition. Compounds 1-5 had no nematieidal activity against Caenorhabditis elegans. This is the first report of the nematicidal activities of compounds 3-5.
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