Antifeedant Activities of the Erythrinaline Alkaloids from Erythrina latissima against Spodoptera littoralis (Lepidoptera noctuidae)

作者：Cornelius Wanjala W^*; Akeng'a Teresa; Obiero George O; Lutta Kweyu P

来源：Records of Natural Products, 2009, 3(2): 96-103.

• Erythrina alkaloids
• Erythrina latissima
• antifeedant activity
• Spodoptera littoralis

The antifeedant activities of the Erythrina alkaloids from the seeds, seed pods and flowers of Erythrina latissima were investigated in laboratory dual-choice bioassays using third-instar Spodoptera littoralis (Boisduval) larvae. The new compound (+)-11 beta-methoxy-10-oxoerysotramidine ( 1) from the flowers, showed potent dose dependant activity at concentration >= 500 ppm while (+)-10,11-dioxoerysotramidine (2) also new from the flowers showed potent dose dependant activity at concentration >= 100 ppm. Three known compounds (+)-erysotrine, (+)-erysotramidine, (+)-erythraline, (+)-11 beta-hydroxyerysotramidine showed potent dose dependant antifeedant activity at concentrations >= 100 ppm while (+)-10,11-dioxoerysotrine and (+)-11 beta-hydroxyerysotramidine also a known compounds showed potent dose dependant antifeedant activity at concentrations >= 300 ppm. Three known compounds (+)-11 beta-methoxyerysotramidine, (+)-8-oxoerythraline and (+)-15(16)beta-D-glucoerysodine showed no appreciable change in antifeedant activity with concentration change.

• 出版日期2009
• 单位西北大学