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首页> 外文期刊>Journal of Nematology >Nematicidal activity of essential oils and volatiles derived from Portuguese aromatic flora against the pinewood nematode, Bursaphelenchus xylophilus
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Nematicidal activity of essential oils and volatiles derived from Portuguese aromatic flora against the pinewood nematode, Bursaphelenchus xylophilus

机译：葡萄牙芳香植物区系的精油和挥发物的杀线虫活性对松材线虫Bursaphelenchus xylophilus

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Twenty seven essential oils, isolated from plants representing 11 families of Portuguese flora, were screened for their nematicidal activity against the pinewood nematode (PWN), Bursaphelenchus xylophilus. The essential oils were isolated by hydrodistillation and the volatiles by distillation-extraction, and both were analysed by GC and GC-MS. High nematicidal activity was achieved with essential oils from Chamaespartium tridentatum, Origanum vulgare, Satureja montana, Thymbra capitata, and Thymus caespititius. All of these essential oils had an estimated minimum inhibitory concentration ranging between 0.097 and 0.374 mg/ml and a lethal concentration necessary to kill 100% of the population (LC100) between 0.858 and 1.984 mg/ml. Good nematicidal activity was also obtained with the essential oil from Cymbopogon citratus. The dominant components of the effective oils were 1-octen-3-ol (9%), n-nonanal, and linalool (both 7%) in C. tridentatum, geranial (43%), neral (29%), and β-myrcene (25%) in C. citratus, carvacrol (36% and 39%), γ-terpinene (24% and 40%), and p-cymene (14% and 7%) in O. vulgare and S. montana, respectively, and carvacrol (75% and 65%, respectively) in T. capitata and T. caespititius. The other essential oils obtained from Portuguese flora yielded weak or no activity. Five essential oils with nematicidal activity against PWN are reported for the first time.
机译：从代表11个葡萄牙植物区系的植物中分离出的27种精油，针对松材线虫（PWN），松材线虫的杀线虫活性进行了筛选。通过加氢蒸馏分离精油，并通过蒸馏萃取分离挥发物，并分别通过GC和GC-MS进行分析。用来自Chamaespartium tridentatum，牛至，牛至，Satureja montana，Thymbra capitata和Thymus caespititius的精油实现了较高的杀线虫活性。所有这些精油的估计最低抑菌浓度范围为0.097至0.374 mg / ml，杀死100％种群所需的致死浓度（LC100）为0.858至1.984 mg / ml。用柠檬柏（Cymbopogon citratus）的精油也获得了良好的杀线虫活性。有效油的主要成分是在C.tridentatum，天竺葵（43％），神经（29％）和β中的1-辛烯-3-醇（9％），正壬醛和芳樟醇（均为7％）。柠檬衣梭菌中的-月桂烯（25％），香菜中的O. vulgare和S. montana的香芹酚（36％和39％），γ-萜品烯（24％和40％）和对生精分别在人参和凯撒木霉中和香芹酚（分别为75％和65％）中。从葡萄牙植物区系获得的其他精油的活性很弱或没有活性。首次报道了对PWN具有杀线虫活性的五种精油。

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