Modes of antifungal action and in planta functions of plant defensins and defensin-like peptides

被引:95
作者
De Coninck, Barbara [1 ]
Cammue, Bruno P. A. [1 ]
Thevissen, Karin [1 ]
机构
[1] Katholieke Univ Leuven, Ctr Microbial & Plant Genet, B-3001 Heverlee, Belgium
关键词
Antifungal activity; Localization; Mode of action; Peptide; Plant defensin; Plant development; RICE CONFERS RESISTANCE; FEMALE GAMETOPHYTE; DIFFERENTIAL EXPRESSION; CONSTITUTIVE EXPRESSION; BIOLOGICAL FUNCTIONS; MEDICAGO-TRUNCATULA; PATHOGENIC FUNGI; RAPHANUS-SATIVUS; GENE; ARABIDOPSIS;
D O I
10.1016/j.fbr.2012.10.002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Plant defensins are small basic peptides that are inhibitory against a range of plant and human pathogens. Their in vitro antimicrobial activity and structural similarity with human and insect defensins indicated an important role for plant defensins in the innate immune system of plants. Regarding their mode of antimicrobial action, most plant defensins interact with a specific microbial surface receptor, resulting in microbial cell death via e.g. induction of apoptosis. However, accumulating evidence suggests additional in vivo functions of these plant defensins, and by extension of the more recently discovered defensin-like peptides, in general plant development. In this review we will discuss both, the functional roles of defensins in the plant and their modes of antimicrobial action. (C) 2012 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:109 / 120
页数:12
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