Acaricidal activity of Annonaceae fractions against Tetranychus tumidus and Tetranychus urticae (Acari: Tetranychidae) and the metabolite profile of Duguetia lanceolata (Annonaceae) using GC-MS
DOI:
https://doi.org/10.5433/1679-0359.2015v36n6Supl2p4119Keywords:
Botanic acaricide, Secondary metabolites, 1, 2, 4-trimethoxy-5-vinylbenzene, 4-trimethoxy-5-[(1E)-1-propen-1-yl]benzene.Abstract
Species of the Tetranychus genus feed on plant tissues, which reduces the rate of photosynthesis and can lead to the death of plant tissues. As a result, considerable production losses are caused by these arthropods. Thus, in order to aid in the development of new products for the control of Tetranychus tumidus Banks and Tetranychus urticae Koch (Acari: Tetranychidae), the initial objective of this study was to select Annonaceae derived fractions that were soluble in dichloromethane and have acaricidal activity. Then, an exploratory analysis of the metabolite profile of the most successful fraction was performed by gas chromatography-mass spectrometry (GC-MS). Among the dichloromethane soluble fractions derived from Annona cacans Warm., Annona coriacea Mart., Annona neolaurifolia H. Rainer, Annona sylvatica A.St.-Hil., Duguetia lanceolata A.St.-Hil., Guatteria australis A.St.-Hil., Xylopia brasiliensis Spreng., Xylopia emarginata Mart. and Xylopia sericea A.St.-Hil., only the fraction from D. lanceolata stem bark reduced the survival of T. tumidus females. However, ovicidal activity was not detected when D. lanceolata stem bark was evaluated against T. tumidus eggs. Further, we studied the effect of dichloromethane soluble fractions from D. lanceolata leaves, berry fruits and stem bark on T. urticae, and the stem bark was found to be the most active fraction against T. urticae. The metabolite profile analysis of D. lanceolata stem bark by GC-MS, suggested that the main constituents were 2,4,5-trimethoxystyrene and trans-asarone.
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