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首页> 外文期刊>Journal of Nematology, with Annual of Applied 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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摘要

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 hydro-distillation 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 (LC_(100)) 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 l-octen-3-ol (9%), w-nonanal, and linalool (both 7%) in C. tridentatum, geranial (43%), neral (29%), and (3-myrcene (25%) inC. citratus, carvacrol (36% and 39%), gamma-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的精油可实现较高的杀线虫活性。所有这些精油的估计最低抑菌浓度在0.097至0.374 mg / ml之间，而杀死100％的种群所必需的致死浓度（LC_（100））在0.858至1.984 mg / ml之间。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C.tridentatum中的l-辛烯-3-醇（9％），正壬醛和芳樟醇（均为7％），香叶醛（43％），神经（29％）和（柠檬梭菌中的3-月桂烯（25％），香菜和蒙大戟中的香芹酚（36％和39％），香芹酚（36％和39％），γ-萜品烯（24％和40％）和对伞花烃（14％和7％） T. capitata和T. caespititius中分别含有香芹酚和香芹酚（分别为75％和65％）。从葡萄牙菌群中获得的其他精油的活性较弱或没有活性。时间。

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