Butenolide from plant-derived smoke enhances germination and seedling growth of arable weed species

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• 作者：Matthew I. Daws ; Jennifer Davies ; Hugh W. Pritchard ; Neville A. C. Brown and Johannes Van Staden
• 关键词：Arable weed ; Butenolide ; Germination ; Seed ; Smoke
• 刊名：Plant Growth Regulation
• 出版年：2007
• 出版时间：January, 2007
• 年：2007
• 卷：51
• 期：1
• 页码：73-82
• 全文大小：262 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Physiology
  
• 出版者：Springer Netherlands
• ISSN：1573-5087

文摘

We tested the applicability of the recently identified major germination cue from smoke (a butenolide 3-methyl-2Hfuro[2,3-c]pyran-2-one) on 18 weed species from non-fire prone environments. For the study species we compared the relative effectiveness of alternating temperatures, KNO₃, GA₃, smoke water and the butenolide on germination percentage, germination rate and seedling mass. We found that while smoke stimulated germination in a number of species it also had negative impacts on other species. In addition, the butenolide was effective on the widest range of species in terms of enhancing germination percentage, rate and seedling mass. However, none of the treatments, including butenolide were effective on all species. Our data demonstrate that butenolide may have wide applicability as a germination and seedling growth stimulant irrespective of whether the species come from fire-prone habitats.