Germination inhibitory constituents from Erigeron annuus.

  title={Germination inhibitory constituents from Erigeron annuus.},
  author={Hyuncheol Oh and Sunyoung Lee and H S Lee and D W Lee and Seung Yeob Lee and Hun-taeg Chung and Tae Soo Kim and Tae-Oh Kwon},
  volume={61 2},
(5-Butyl-3-oxo-2,3-dihydrofuran-2-yl)-acetic acid was isolated from the flowers of Erigeron annuus as one of four germination inhibitory constituents. Its structure was determined by analysis of MS and NMR spectroscopic data. Three known compounds, 3-hydroxy-pyran-4-one, 4-hydroxycinnamic acid, and 3,4-dihydroxycinnamic acid methyl ester were also identified as active constituents. These compounds showed 50% inhibitory effects (IC(50)) on the germination of lettuce seed at concentrations of 2… CONTINUE READING

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