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Scientia Silvae Sinicae ›› 1998, Vol. 34 ›› Issue (5): 61-68.

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RELATIONSHIP BETWEEN MOLECULAR STRUCTURE AND NEMATICIDAL ACTIVITY OF QUINOLIZIDINE ALKALOIDS

Boguang Zhao   

  1. Nanjing Foresty University Nanjing 210037
  • Received:1998-02-09 Online:1998-09-25 Published:1998-09-25

Abstract:

Nematicidal activity of aloperine, cytisine, N-methylcytisine and matrine Wilts bioas. Sayed by the agar medium method and the cotton.Ball method.The corresponding results by the tw.o methods showed that the nematicidal activity of aloperine was the strongest.Its log (1/ID50)(mol/cotton ball) =8.67 was also the strongest in comparison with nematicidal activity of seven other quinolizidine alkaloids bioassayed by the same method in literature.A hypothesis that nematicidal activity of quinolizidine alkaloids is mainly determined by types of functional group pair and types of functional group in their molecular structures was proposed. Based on the hypothesis, the structures of alkaloids with strong nem aticidal activity were predicted.

Key words: Bursaphelenchus xylophilus(Steiner et Buhrer)Nickle, Quinolizidine alkaloid, Nematicidal activity, Functional group pair