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Linalool Induces Resistance Against Tobacco Mosaic Virus in Tobacco Plants

文献类型： 外文期刊

作者： Jiang, Yue 1 ; Pan, Xiaoyu 1 ; Li, Yiming 3 ; Yang, Yizhou 1 ; Jia, Yina 1 ; Lei, Bin 4 ; Feng, Juntao 1 ; Ma, Zhiqing 1 ; Liu, Xili 1 ; Yan, He 1 ;

作者机构： 1.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China

2.Engn & Technol Ctr Biopesticide Shaanxi, Yangling 712100, Shaanxi, Peoples R China

3.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China

4.Minist Agr & Rural Affairs, Inst Nucl Technol & Biotechnol, Xinjiang Acad Agr Sci, Key Lab Crop Ecophysiol & Fanning Syst Desert Oasi, Urumqi 830091, Peoples R China

关键词： anti-TMV; Cinnamomum camphora; disease management; essential oil; induced resistance; linalool; tropical plants; viruses and viroids

期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）

ISSN： 0191-2917

年卷期： 2023 年 107 卷 7 期

页码：

收录情况： SCI

摘要： The essential oil of Cinnamomum camphora is the most widely consumed and used spice in the world today. It has therapeutic effects in medicine and has been shown to have good antibacterial and bacteriostatic effects in agriculture. This study found that C. camphora oil significantly induced plant disease resistance activity. Linalool, its main active component, significantly induced plant disease resistance activity (67.49% at a concentration of 800 & mu;g/ml) over the same concentration of the chitosan oligosaccharide positive control but had no direct effect on tobacco mosaic virus (TMV). In this study of its antiviral mechanism, linalool induced hypersensitive reaction (HR); the overexpression of related defense enzymes SOD, CAT, POD, and PAL; and the accumulation of H2O2 and SA content in N. glutinosa. Besides, linalool induced crops resistance against Colletotrichum lagenarium, Botrytis cinerea, Sclerotinia sclerotiorum, and Phytophthora capsica. Taken together, the anti-TMV mechanism of linalool involved the induction of plant disease resistance through activation of a plant immune response mediated by salicylic acid. Linalool-induced plant disease resistance activity has a long duration, broad spectrum, and rich resources; linalool thus has the potential to be developed as a new plant-derived antiviral agent and plant immune activator.

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