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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (2): 15-20.

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A STUDY ON DYNAMIC ACCUMULATION OF METABOLITES DURING THE GROWTH OF EUCOMMIA ULMOIDES OLIV

Kangjian Zhang,Xihan Ma,Mei Ma,Lan Wang,Tan Zhang   

  1. Northwestern College of Forestry Yangling 712100
  • Received:1997-09-30 Online:1999-03-25 Published:1999-03-25
  • Supported by:
    陕西省科技研究重大项目97K04-G2研究内容之一

Abstract:

Through determining the contents of secondary metabolites(active constituents)in Eucommia ulmoides Oliv.(Duzhong)leaves, it is found that secondary metabolites appear dynamic accumulation trend.Variance analysis of the contents of secondary metabolites is notable in different clones.The result illustrates that the inheritable gene is an important factor in regulating the formation of secondary metaboiltes.In the growth season of Duzhong leaves, the contents of chlorogenic acid and aucubin are highest in June and November.The content of geniposidic acid is the highest in June, too.The content of flavonoids, however, is the highest in May.The content of gutta-percha is the highest in May and June, then decreasing gradually.It seems that correlation exists between dynamic accumulation of secondary metabolites and tree growth rate.

Key words: Duzhong leaves, Secondary metabolites, Dynamic accumulation