Plant-growth inhibitory activity of heliannuol derivatives
2004
Doi, F. | Ohara, T. | Ogamino, T. | Sugai, T. | Higashinakasu, K. | Yamada, K. | Shigemori, H. | Hasegawa, K. | Nishiyama, S.
In addition to (+)-, (-)- and (ł)-heliannuol E, growth-inhibitory activities of five synthetic chromans and four tetrahydrobenzo[b]oxepins were examined against oat and cress. All heliannuol E isomers exhibited similar biological activities against cress, whereas when tested against oat roots, the unnatural optical isomer (+) showed no inhibitory activity. Four brominated chromans and two tetrahydrobenzo[b]oxepin derivatives also showed apparent inhibition against both cress and oat.
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