Nematicidal activity of essential oils from aromatic plants of Morocco
Nematicidal activity of essential oils from aromatic plants of Morocco
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DOI：
10.1007/s10340-016-0805-0
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发表时间：
2017-03-01
影响因子：
4.8
通讯作者：
D'Addabbo, T.
中科院分区：
文献类型：
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作者：
Avato, P.;Laquale, S.;D'Addabbo, T.
比较评价了摩洛哥生态型白蒿、柑橘、迷香和胸腺草精油及其主要成分对植物线虫的体外活性和对植物线虫的体外活性。在盆栽混合料中，研究了4种有机肥对番茄上黑斑病的抑制作用。测定了四种精油主要成分的体外杀线虫活性。在暴露于15 μ g ml（-1）的a . herba-alba EO溶液中24小时后，超过94%的无痕田鼠幼虫死亡。除中华按蚊外，在所有暴露时间和浓度下，x指数雌虫的死亡率均为100%。在15 μ g ml（-1）的黄颡鱼EO溶液中停留96 h后，黄颡鱼的死亡率达到75%。黄芪主要成分的体外活性不高于整个黄芪的体外活性，表明黄芪多组分混合物具有协同作用。4种土壤处理均能显著降低番茄根结线虫的侵染率，但综合比较结果显示，白刺土壤处理的根结线虫侵染率高于其他3种土壤处理，熏蒸处理的根结线虫侵染率高于水处理。大多数已测试的EOs的高杀线虫活性及其大量可用性使它们成为新的杀线虫制剂的潜在来源。
Essential oils (EOs) from Moroccan ecotypes of Artemisia herba-alba, Citrus sinensis, Rosmarinus officinalis and Thymus satureioides and their main components were comparatively evaluated for their in vitro activity against the phytonematode species Meloidogyne incognita, Pratylenchus vulnus and Xiphinema index. Suppressiveness of drench or fumigation soil treatment with the four EOs was also investigated against M. incognita on tomato in potting mixes. The in vitro nematicidal activity of the main constituents of the four EOs was also determined. More than 94 % mortality of M. incognita juveniles occurred after a 24-h exposure to a 15 mu g ml(-1) solution of A. herba-alba EO. A 100 % mortality of X. index females was observed at all exposure times and concentrations of all EOs except that from C. sinensis. Mortality of P. vulnus peaked at 75 % only after a 96-h permanence in the 15 mu g ml(-1) solution of R. officinalis EO. The in vitro activity of EOs' main components was never as high as that of the whole EOs, suggesting a synergistic action of the EO multicomponent mixture. Soil treatments with the four EOs generally resulted in a significant reduction of root-knot nematode infestation on tomato, though in an aggregate comparison of data the A. herba-alba EO was more active than the other three EOs, and fumigation treatments were more effective than application in water solution. The high nematicidal activity of most of the tested EOs and their large availability make them a potential source of new nematicide formulations.