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Protoilludane, Illudane, Illudalane, and Norilludane Sesquiterpenoids from Granulobasidium vellereum
- Kokubun, Tetsuo, Scott-Brown, Alison, Kite, Geoffrey C., Simmonds, Monique
- Journal of natural products 2016 v.79 no.6 pp. 1698-1701
- Heliothrips haemorrhoidalis, Tetranychus urticae, Ulmus, chemical structure, insecticidal properties, pests, sesquiterpenoids, spectroscopy
- Two new and seven known sesquiterpene compounds were isolated from an agar plate culture of Granulobasidium vellereum, isolated from a log of Ulmus sp. The two new structures were elucidated with spectroscopic methods as an illudalane derivative, granulolactone (1), and a 15-norilludane, granulodione (9). The acaricidal and insecticidal activities of the isolated compounds were examined in vitro against two major horticultural pests, the two-spotted spider mite Tetranychus urticae and the glasshouse thrips Heliothrips haemorrhoidalis, respectively.