科學家從燃燒植物材料產(chǎn)生的煙霧中找到了一種化合物,，這種化合物能促進多種依賴于火的植物的種子發(fā)芽?？茖W家過去就知道部分植物暴露與煙霧之后會更好地發(fā)芽,，但他們一直不清楚輔助發(fā)芽的活性成分是什么。文章作者說,，在煙霧被更廣泛地當作生態(tài)和復原工具的時,，找到煙霧中的促進發(fā)芽的重要化合物將有益于園藝、農(nóng)業(yè),、礦業(yè)和被損壞土地的恢復,。科學家找到并合成和測量了這種化合物刺激多種植物種子發(fā)芽的能力,。找到了煙霧中的這種活性成分,，科學家現(xiàn)在有機會來揭示這個化合物是如何刺激種子發(fā)芽的。
A Compound from Smoke That Promotes Seed Germination
Exposure of seeds to aerosol smoke or crude smoke extracts stimulates the germination of a number of fire-dependent and fire-independent plant species. We now report the identity of a germination-promoting compound present in plant- and cellulose-derived smoke. The structure of this compound, deduced from spectroscopic analysis and confirmed by synthesis, was shown to be that of the butenolide, 3-methyl-2H-furo[2,3-c]pyran-2-one (1). Here we show that 1 promotes germination of a number of plant species at a level similar to that observed with plant-derived smoke water.
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