Baccharis Species Essential Oils: Repellency and Toxicity against Yellow Fever Mosquitoes and Imported Fire Ants

IF 6.8 Q1 TOXICOLOGY Journal of Xenobiotics Pub Date : 2023-10-27 DOI:10.3390/jox13040041

Abbas Ali, Farhan Mahmood Shah, Jane Manfron, Luciane M. Monteiro, Valter P. de Almeida, Vijayasankar Raman, Ikhlas A. Khan

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Abstract

Essential oils from five Baccharis species were screened for their toxicity and biting deterrence/repellency against yellow fever mosquito, Aedes aegypti (L.), and imported fire ants, including Solenopsis invicta Buren (RIFA), Solenopsis richteri Forel (BIFA) and their hybrids (HIFA). Baccharis microdonta DC. and B. punctulata DC. at 10 µg/cm2 showed biting deterrence similar to DEET, N, N-diethyl-meta-toluamide at 25 nmol/cm2, whereas the repellency of B. pauciflosculosa DC., B. sphenophylla Dusén ex Malme and B. reticularioides Deble & A.S. Oliveira essential oils was significantly lower than DEET against mosquitoes. Two major compounds from the active essential oils, kongol and spathulenol, also exhibited biting deterrence similar to DEET against mosquitoes. The highest toxicity exhibited against mosquitoes was by Baccharis punctulata essential oil (LC50 = 20.4 ppm), followed by B. pauciflosculosa (LC50 = 31.9 ppm), B. sphenophylla (LC50 = 30.8 ppm), B. microdonta (LC50 = 28.6 ppm), kongol (LC50 = 32.3 ppm), spathulenol (LC50 = 48.7 ppm) and B. reticularioides essential oil (LC50 = 84.4 ppm). Baccharis microdonta essential oil showed repellency against RIFA, BIFA and HIFA at 4.9, 4.9 and 39 µg/g, respectively. Baccharis microdonta essential oil also showed toxicity with LC50 of 78.9, 97.5 and 136.5 µg/g against RIFA, BIFA and HIFA, respectively, at 24 h post treatment.

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酒属植物精油:对黄热病蚊及进口火蚁的驱避及毒性

对5种巴charis属植物精油对黄热病蚊、埃及伊蚊(Aedes aegypti, L.)和进口火蚁(Solenopsis invicta Buren, RIFA)、richteri Forel (BIFA)及其杂交种(HIFA)的毒性和防咬作用进行了筛选。小茴香(Baccharis microdonta)和B. punctulata DC。10 μ g/cm2时的驱避效果与25 nmol/cm2时的驱避效果相似，而对paucifloscusa DC的驱避效果与25 nmol/cm2时的驱避效果相似。， b.s henophylla dusex Malme和b.s reticularioides Deble & &;A.S. Oliveira精油对蚊子的驱蚊效果明显低于避蚊胺。从活性精油中提取的两种主要化合物，金刚酚和spathulenol，对蚊子也表现出类似于避蚊胺的咬阻作用。对蚊虫的毒力最高的是马斑酒(Baccharis punctulata)精油(LC50 = 20.4 ppm)，其次是pauciflololosa (LC50 = 31.9 ppm)、phophylla (LC50 = 30.8 ppm)、microdonta (LC50 = 28.6 ppm)、kongol (LC50 = 32.3 ppm)、spathulenol (LC50 = 48.7 ppm)和reticularioides精油(LC50 = 84.4 ppm)。对RIFA、BIFA和HIFA的驱避作用分别为4.9、4.9和39µg/g。在处理后24 h，小酒鬼精油对RIFA、BIFA和HIFA的LC50分别为78.9、97.5和136.5µg/g。

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来源期刊

Journal of Xenobiotics TOXICOLOGY-

CiteScore

5.30

自引率

1.70%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Xenobiotics publishes original studies concerning the beneficial (pharmacology) and detrimental effects (toxicology) of xenobiotics in all organisms. A xenobiotic (“stranger to life”) is defined as a chemical that is not usually found at significant concentrations or expected to reside for long periods in organisms. In addition to man-made chemicals, natural products could also be of interest if they have potent biological properties, special medicinal properties or that a given organism is at risk of exposure in the environment. Topics dealing with abiotic- and biotic-based transformations in various media (xenobiochemistry) and environmental toxicology are also of interest. Areas of interests include the identification of key physical and chemical properties of molecules that predict biological effects and persistence in the environment; the molecular mode of action of xenobiotics; biochemical and physiological interactions leading to change in organism health; pathophysiological interactions of natural and synthetic chemicals; development of biochemical indicators including new “-omics” approaches to identify biomarkers of exposure or effects for xenobiotics.