JOURNAL ARTICLE

Butenolides from plant-derived smoke: natural plant-growth regulators with antagonistic actions on seed germination

Marnie E Light, Ben V Burger, Dan Staerk, Ladislav Kohout, Johannes Van Staden
Journal of Natural Products 2010 February 26, 73 (2): 267-9
20078110
Smoke plays an intriguing role in promoting the germination of seeds of many species following a fire. Recently, a bicyclic compound containing a condensed butenolide moiety, 3-methyl-2H-furo[2,3-c]pyran-2-one (1), was reported as a potent germination promoter from plant-derived smoke. In this study, a related butenolide, 3,4,5-trimethylfuran-2(5H)-one (2), which inhibits germination and significantly reduces the effect of 1 when applied simultaneously, was also isolated from plant-derived smoke. The interaction of these compounds with opposing actions on seed germination may have important ecological implications in a post-fire environment and could be useful molecules for understanding the events involved in breaking seed dormancy and promoting seed germination.

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