Understanding cellular defence in kumquat and calamondin to citrus canker caused by Xanthomonas citri subsp citri

被引：24

作者：

Chen, Po-Sheng ^{[2
]}

Wang, Li-Yuan ^{[3
]}

Chen, You-Jen ^{[2
]}

Tzeng, Kuo-Ching ^{[2
]}

Chang, Shih-Chieh ^{[2
]}

Chung, Kuang-Ren ^{[1
,4
]}

Lee, Miin-Huey ^{[2
]}

机构：

[1] Univ Florida, Citrus Res & Educ Ctr, Inst Food & Agr Sci, Lake Alfred, FL 33850 USA

[2] Natl Chung Hsing Univ, Dept Plant Pathol, Taichung 402, Taiwan

[3] Agr Res Inst, Dept Plant Protect, Chiayi Agr Expt Branch, Council Agr, Chiayi, Taiwan

[4] Univ Florida, Dept Plant Pathol, Inst Food & Agr Sci, Gainesville, FL 32611 USA

来源：

PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY | 2012年 / 79卷

关键词：

Antioxidants; Citrus aurantifolia; Citrus grandis; Citrus mitis; Flavonoids; Fortunella margarita; Hypersensitive reaction; Hydrogen peroxide; Phenolics; Xanthomonas citri subsp citri; AXONOPODIS PV. CITRI; OXIDATIVE BURST; PENICILLIUM-DIGITATUM; PATHOGENICITY GENE; PLANT; LEAVES; FLAVONOIDS; RESISTANCE; SUPPRESSION; HOMOLOG;

D O I：

10.1016/j.pmpp.2012.03.001

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Histopathological assays gain physiological insights into the mechanisms by which kumquat and calamondin are resistant to citrus canker caused by Xanthomonas citri subsp. citri (Xcc). Unlike Mexican lime, which is highly susceptible to Xcc, calamondin and kumquat leaves challenged with Xcc developed rapid necrosis, resembling a hypersensitive reaction. Fluorescent microscopy examination identified fluorescent materials around the necrotic lesions in kumquat and calamondin leaves challenged with Xcc, but not in Mexican lime. The resistant cultivars inoculated with Xcc exhibited lower antioxidant enzymatic activities and accumulated less H2O2. These modifications serve as physical barriers to ward off pathogen, thereby suppressing lesion development. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1 / 12

页数：12

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