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Laboratory evaluation of Clusia fluminensis extracts and their isolated compounds against Dysdercus peruvianus and Oncopeltus fasciatus

2016; Springer Science+Business Media; Volume: 27; Issue: 1 Linguagem: Inglês

10.1016/j.bjp.2016.08.004

1981-528X

Rodrigo Coutinho Duprat, Maria Carolina Anholeti, Bruno P. de Sousa, João Pedro Furtado Pacheco, Maria Raquel Figueiredo, M. A. C. Kaplan, Marcelo Guerra Santos, Marcelo Salabert Gonzalez, Norman A. Ratcliffe, C.B. Mello, Selma Ribeiro de Paiva, Denise Feder,

Phytochemical compounds biological activities

The effects of the hexanic extracts of the fruits and flowers of Clusia fluminensis Planch. & Triana, Clusiaceae, as well as their main constituents, the triterpene lanosterol and the benzophenone clusianone, were evaluated on hemipterans Dysdercus peruvianus and Oncopeltus fasciatus. The topical treatments of insects with the hexanic extracts significantly affected the survival of O. fasciatus, but not that of D. peruvianus. Concomitantly, extracts delayed the development of both hemipterans. Moreover, isolated lanosterol significantly reduced both the survival and development of O. fasciatus and D. peruvianus, while clusianone only reduce the survival of D. peruvianus and marginally inhibited the development of both insects. The results show the specific activity of lanosterol and clusianone against the two evaluated insect species and indicate the potential of compounds derived from C. fluminensis for the development of specific biopesticides for the control of agricultural pests. Subsequent work will examine the mode of action of lanosterol and clusianone isolates from C. fluminensis.