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首页> 美国卫生研究院文献>The Plant Pathology Journal >Antibacterial Activity of Cinnamaldehyde and Estragole Extracted from Plant Essential Oils against Pseudomonas syringae pv. actinidiae Causing Bacterial Canker Disease in Kiwifruit
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Antibacterial Activity of Cinnamaldehyde and Estragole Extracted from Plant Essential Oils against Pseudomonas syringae pv. actinidiae Causing Bacterial Canker Disease in Kiwifruit

机译：从植物精油中提取的肉桂醛和雌草酮对丁香假单胞菌PV的抗菌活性。猕猴桃中引起细菌性溃疡病的猕猴桃

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摘要

Pseudomonas syringae pv. actinidiae (Psa) causes bacterial canker disease in kiwifruit. Antibacterial activity of plant essential oils (PEOs) originating from 49 plant species were tested against Psa by a vapor diffusion and a liquid culture assays. The five PEOs from Pimenta racemosa, P. dioica, Melaleuca linariifolia, M. cajuputii, and Cinnamomum cassia efficiently inhibited Psa growth by either assays. Among their major components, estragole, eugenol, and methyl eugenol showed significant antibacterial activity by only the liquid culture assay, while cinnamaldehyde exhibited antibacterial activity by both assays. The minimum inhibitory concentrations (MICs) of estragole and cinnamaldehyde by the liquid culture assay were 1,250 and 2,500 ppm, respectively. The MIC of cinnamaldehyde by the vapor diffusion assay was 5,000 ppm. Based on the formation of clear zones or the decrease of optical density caused by these compounds, they might kill the bacterial cells and this feature might be useful for managing the bacterial canker disease in kiwifruit.
机译：丁香假单胞菌PV。猕猴桃（Psa）会引起猕猴桃细菌性溃疡病。通过蒸气扩散和液体培养测定法测试了源自49种植物的植物精油（PEO）的抗Psa抗菌活性。通过任一种测定，来自Pimenta racemosa，P。dioica，Melaleuca linariifolia，M.cajuputii和Cinnamomum决明子的五个PEO均有效抑制了Psa的生长。在它们的主要成分中，雌二醇，丁子香酚和甲基丁子香酚仅通过液体培养测定法显示出显着的抗菌活性，而肉桂醛通过两种测定法均显示出抗菌活性。液体培养测定法测得的雌二醇和肉桂醛的最低抑菌浓度（MICs）分别为1,250 ppm和2,500 ppm。通过蒸气扩散测定法测定的肉桂醛的MIC为5,000ppm。基于这些化合物导致的透明区的形成或光密度的降低，它们可能会杀死细菌细胞，并且此功能可能对于控制奇异果中的细菌性溃疡病很有用。

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