Acaricidal activity and chemical composition of the essential oil from three Piper species

Abstract

The chemical composition of the essential oil obtained by hydrodistillation of the aerial parts of Piper amalago, Piper mikanianum, and Piper xylosteoides was elucidated by gas chromatography (GC) and GC/mass spectrometry analyses. P. mikanianum and P. xylosteoides essential oils presented phenylpropanoids as their main compounds (67.89% and 48.53%, respectively) whereas P. amalago was rich in monoterpene and sesquiterpene hydrocarbons (84.95%). The essential oils obtained were investigated for their effect on newly hatched larvae of the cattle tick, Rhipicephalus (Boophilus) microplus. The essential oil of P. mikanianum (LC(50) 2.33 microL/mL) was more active than that of P. xylosteoides (LC(50) 6.15 microL/mL) against the larvae, while the oil of P. amalago was inactive. These results suggest that phenylpropanoids, mainly apiol and safrole, are responsible for the acaricidal activity.

In Vitro Evaluation of Essential Oils Derived from Piper nigrum (Piperaceae) and Citrus limonum (Rutaceae) against the Tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

“…microplus. Ferraz et al in [ 47 ] showed that the essential oils of Piper mikanianum and Piper xylosteoides were active against R. (B.)…”

Interaction of plant essential oil terpenoids with the southern cattle tick tyramine receptor: A potential biopesticide target

“…These alternatives may include new chemistry and/or the identification of novel or underutilized biochemical targets. Several essential oils have been shown to be toxic to the cattle fever tick (R. annulatus) and to the southern cattle tick (R. microplus) [8,22,26,36,37,39,40,46]. Here, we report on the development of an expression system for the southern cattle tick's tyramine receptor (RmTAR1), and present evidence that this receptor may be a potential target of biopesticides.…”

“…Recently, there has been a growing interest in the use of botanical acaricides, particularly essential oils, to control R. microplus and R. annulatus [8,22,26,36,37,39,40,46]. For instance, the essential oil from cumin seeds (Cuminum cyuminum) and allspice berries (Pimenta dioica) resulted in 100% mortality at concentrations between 2.5% and 20% (v/v).…”

Anthelmintic effect of a methanol extract of Bombax malabaricum leaves on Paramphistomum explanatum

“…It was reported earlier by our group that the methanol extract of leaves of Dregea volubilis was effective against P. explanatum (Hossain et al 2011b). Interestingly enough, it was found that different plants do possess anthelmintic activity (Agaie and Onyeyili 2007;Aswar et al 2008;Ferraz et al 2010;Mehlhorn et al 2011;Roy and Swargiary 2009;Schmahl et al 2010;Tandon et al 1997;Yadav and Tangpu 2009).…”