Effects of 3 Triterpenoids on Bioactivity and Cellulase Activity of Reticulitermes flaviceps(Isoptera:Rhinotermitidae)
Xu Weili
Han Meng
Yuan Zhonglin
Abstract:In order to define the bioactivity and effects on the cellulose activity of termite,three triterpenoids,lantanolic acid,lantadene A and B,which isolated and purified from leaves of Lantana camara,were used to feed Reticulitermesflaviceps by filter paper method.The activities of 3 enzymes of endo-1,4-β-glucanase (EG),exo-β-1,4-glucanase(CBH) and β-1,4-glucosidase (BGL) in termite were tested with ELIASA at different concentrations and treatment times.The results showed that the 3 triterpenoids all had certain toxic activity on termite.The enzyme activity test showed that EG,CBH and BGL all had different changes when treated with lantanolic acid for 12 ~ 72 hours.In general,lantanolic acid had an inhibitory effect on EG,and it was significant at the concentration of 2 mg/mL in 12 ~ 36 hours.Lantanolic acid had certain active effect on CBH,and the effect of 2 mg/mL was more obvious,but it was not significantly different compared with control.On BGL,lantanolic acid showed an inhibitory effect.Lantadene A and B showed inhibitory effects on all three kinds of enzymes,and the inhibitory effects became significant with the increase of concentration.Therefore,three triterpenoids all had certain effects on the cellulase activity in Reticulitermes flaviceps which depended on the concentration and treatment time,especially the inhibitory effect of lantadene B and A.
Keywords:Lantana camaraLantanolic acidLantadene ALantadene BReticulitermes flavicepsCellulaseBioactivity
Publication Date:2017-01-01
Online Publishing Date:2026-05-22(First online date of this platform, not the publication date of the document)
Pages:7( 98-104 )
