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Eugenol confers resistance to Tomato yellow leaf curl virus (TYLCV) by regulating the expression of SlPer1 in tomato plants

文献类型： 外文期刊

作者： Sun, Wei-Jie 1 ; Lv, Wen-Jing 2 ; Li, Li-Na 2 ; Yin, Gan 3 ; Hang, Xiaofang 1 ; Xue, Yanfeng 3 ; Chen, Jian 3 ; Shi, Zhiq 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Plant Protect, Weigang 1, Nanjing 210095, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Coll Hort, Weigang 1, Nanjing 210095, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Food Qual & Safety, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

4.Minist Agr, Key Lab Control Technol & Stand Agroprod Safety &, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

5.Minist Agr

期刊名称：NEW BIOTECHNOLOGY （ 影响因子：5.079； 五年影响因子：5.423 ）

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收录情况： SCI

摘要： Tomato yellow leaf curl virus (TYLCV) is one of the most devastating plant diseases, and poses a significant agricultural concern because of the lack of an efficient control method. Eugenol is a plant derived natural compound that has been widely used as a food additive and in medicine. In the present study, we demonstrated the potential of eugenol to enhance the resistance of tomato plants to TYLCV. The anti-TYLCV efficiency of eugenol was significantly higher than that of moroxydine hydrochloride (MH), a widely used commercial antiviral agent. Eugenol application stimulated the production of endogenous nitric oxide (NO) and salicylic acid (SA) in tomato plants. The full-length cDNA of SlPer1, which has been suggested to be a host R gene specific to TYLCV, was isolated from tomato plants. A sequence analysis suggested that SlPer1 might be a nucleobase-ascorbate transporter (NAT) belonging to the permease family. The transcript levels of SlPer1 increased markedly in response to treatment with eugenol or TYLCV inoculation. The results of this study also showed that SlPer1 expression was strongly induced by SA, MeJA (jasmonic acid methyl ester), and NO. Thus, we propose that the increased transcription of SlPer1 contributed to the high anti-TYLCV efficiency of eugenol, which might involve in the generation of endogenous SA and NO. Such findings provide the basis for the development of eugenol as an environmental-friendly agricultural antiviral agent.

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