cis-Cinnamoyl Glucoside as a major plant growth inhibitor contained in Spiraea prunifolia

Sayaka Morita, Syuntaro Hiradate, Yoshiharu Fujii, Jiro Harada

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13 Citations (Scopus)


Crude extracts of the leaves of Spiraea prunifolia Sieb. showed high plant-growth-inhibiting activity comparable to that of S. thunbergii extracts. To isolate the causal compound in S. prunifolia, we performed bioassay-directed purification by monitoring the biological activity per unit weight of the organism containing the bioactive compound (total activity). We isolated 1-O-cis-cinnamoyl-β-D-glucopyranose (cis-CG) and identified it as the most important growth-inhibiting constituent in the crude extracts. We did not detect 6-O-(4′-hydroxy-2′-methylenebutyroyl)-1-O-cis-cinnamoyl-β-D- glucopyranose (cis-BCG) in S. prunifolia, though it is a major plant growth inhibitor in S. thunbergii together with cis-CG. We estimated the cis-CG content in S. prunifolia to be 3.84 mmol kg-1 F.W. This amount is comparable to the cis-CG plus cis-BCG content in S. thunbergii (3.59 mmol kg-1 F.W.). This indicates that S. prunifolia and S. thunbergii have equally high potential to inhibit plant growth, and cis-CG acts as the most important plant-growth inhibitor in S. prunifolia extracts.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalPlant Growth Regulation
Issue number2
Publication statusPublished - Jun 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physiology
  • Agronomy and Crop Science
  • Plant Science


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