Role of polyisoprenoids in tobacco resistance against biotic stresses

被引:54
作者
Bajda, Agnieszka [1 ]
Konopka-Postupolska, Dorota [1 ]
Krzymowska, Magdalena [1 ]
Henning, Jacek [1 ]
Skorupinska-Tudek, Karolina [1 ]
Surmacz, Liliana [1 ]
Wojcik, Jacek [1 ]
Matysiak, Zdzislaw [1 ]
Chojnacki, Tadeusz [1 ]
Skorzynska-Polit, Ewa [2 ]
Drazkiewicz, Maria [2 ]
Patrzylas, Pawel [2 ]
Tomaszewska, Monika [2 ]
Kania, Magdalena [3 ]
Swist, Malgorzata [3 ]
Danikiewicz, Witold [3 ]
Piotrowska, Wieslawa [4 ]
Swiezewska, Ewa [1 ]
机构
[1] Polish Acad Sci, Inst Biochem & Biophys, PL-02106 Warsaw, Poland
[2] Marie Curie Sklodowska Univ, PL-20031 Lublin, Poland
[3] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland
[4] Warsaw Univ Life Sci, PL-02787 Warsaw, Poland
关键词
ARABIDOPSIS-THALIANA; CIS-PRENYLTRANSFERASE; SUPEROXIDE-DISMUTASE; FUNCTIONAL-ANALYSIS; HYDROGEN-PEROXIDE; OXIDATIVE STRESS; ALPHA-TOCOPHEROL; SALICYLIC-ACID; KEY ENZYME; DOLICHOL;
D O I
10.1111/j.1399-3054.2009.01204.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Infection with avirulent pathogens, tobacco mosaic virus (TMV) or Pseudomonas syringae pv. tabaci induced accumulation of polyisoprenoid alcohols, solanesol and a family of polyprenols [from polyprenol composed of 14 isoprene units (Pren-14) to -18, with Pren-16 dominating] in the leaves of resistant tobacco plants Nicotiana tabacum cv. Samsun NN. Upon TMV infection, solanesol content was increased seven- and eight-fold in the inoculated and upper leaves, respectively, while polyprenol content was increased 2.5- and 2-fold in the inoculated and upper leaves, respectively, on the seventh day post-infection. Accumulation of polyisoprenoid alcohols was also stimulated by exogenously applied hydrogen peroxide but not by exogenous salicylic acid (SA). On the contrary, neither inoculation of the leaves of susceptible tobacco plants nor wounding of tobacco leaves caused an increase in polyisoprenoid content. Taken together, these results indicate that polyisoprenoid alcohols might be involved in plant resistance against pathogens. A putative role of accumulated polyisoprenoids in plant response to pathogen attack is discussed. Similarly, the content of plastoquinone (PQ) was increased two-fold in TMV-inoculated and upper leaves of resistant plants. Accumulation of PQ was also stimulated by hydrogen peroxide, bacteria (P. syringae) and SA. The role of PQ in antioxidant defense in cellular membranous compartments is discussed in the context of the enzymatic antioxidant machinery activated in tobacco leaves subjected to viral infection. Elevated activity of several antioxidant enzymes (ascorbate peroxidase, guaiacol peroxidase, glutathione reductase and superoxide dismutase, especially the CuZn superoxide dismutase isoform) and high, but transient elevation of catalase was found in inoculated leaves of resistant tobacco plants but not in susceptible plants.
引用
收藏
页码:351 / 364
页数:14
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