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Inhibitory effect of esterified lactoferin and lactoferin against tobacco mosaic virus (TMV) in tobacco seedlings

文献类型： 外文期刊

作者： Wang, Jie 1 ; Wang, Hong-Yan 2 ; Xia, Xiao-Ming 1 ; Li, Peng-peng 1 ; Wang, Kai-Yun 1 ;

作者机构： 1.Shandong Agr Univ, Dept Plant Protect, Tai An 271018, Shandong, Peoples R China

2.Shandong Acad Agr Sci, Cotton Res Ctr, Jinan 250100, Shandong, Peoples R China

关键词： Esterified lactoferrin;Elicitor;Induced resistance;Tobacco mosaic virus;Tobacco seedlings

期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：3.963； 五年影响因子：4.454 ）

ISSN： 0048-3575

年卷期： 2013 年 105 卷 1 期

页码：

收录情况： SCI

摘要： The inhibitory effects of esterified lactoferrin (ELF) and lactoferrin (LF) against tobacco mosaic virus (TMV) in tobacco seedlings and the underlying mechanism were investigated. ELF and LF significantly inhibited viral infection and TMV multiplication in tobacco plants. ELF showed a higher inhibition effect against TMV than LF treatment in a dose and time-dependent way. Moreover, ELF induced a higher increase in the levels of transcription of pathogenesis-related (PR) protein genes [acidic PRs (PR-1a, PR-2, PR-3, PR-5) and basic PR-1] and defense-related enzymes [phenylalanine ammonia lyase (PAL, EC 4.3.1.5), and 5-epi-aristolochene synthase (EAS, EC 2.5.1.35)] both locally and systemically, in correlation with the induction of resistance against tobacco mosaic virus. Furthermore, ELF also induced accumulation of salicylic acid, SA 2-O-beta-D-glucoside and H2O2. These results suggested that ELF and LF could control TMV incidence and the mechanism might attribute to activate the expression of a number of defense genes. (C) 2012 Elsevier Inc. All rights reserved.

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