Participation of Xanthomonas axonopodis pv. citri hrp cluster in citrus canker and nonhost plant responses
Participation of Xanthomonas axonopodis pv. citri hrp cluster in citrus canker and nonhost plant responses
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DOI：
10.1111/j.1365-3059.2005.01284.x
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发表时间：
2005-12-01
期刊：
影响因子：
2.7
通讯作者：
Ottado, J
中科院分区：
文献类型：
--
作者：
Dunger, G;Arabolaza, AL;Ottado, J
参与的Xanthomonas axonopodis pv.柑桔超敏反应和致病性（HRP）簇在与寄主和非寄主植物互作中表现为致病性和无毒性两种模式。hrp簇编码蛋白质运输到植物细胞所必需的III型分泌系统。操纵子hrpB和hrpD以及hrpF基因的突变未能在柑橘植物中产生溃疡或在棉花植物中产生过敏反应。植物病原体与各种非寄主植物的相互作用的特点。结果表明，棉花、大豆、烟草、番茄、辣椒和本氏烟草等植物的过敏反应均被激活，hrpB和hrpD操纵子中的基因以及hrpF基因对寄主植物的致病性和非寄主植物过敏反应的诱导都是必需的。
The participation of the Xanthomonas axonopodis pv. citri hypersensitive response and pathogenicity (hrp) cluster in interactions with host and nonhost plants was characterized in pathogenicity and avirulence models. The hrp cluster encodes the type III secretion system indispensable for trafficking of proteins to the plant cell. Mutations in operons hrpB and hrpD and the hrpF gene failed to produce canker in citrus plants or hypersensitive response in cotton plants. The interaction of the phytopathogen with various nonhost plants has been characterized. The results showed that the hypersensitive response is activated in leaves of cotton, bean, tobacco, tomato, pepper and Nicotiana benthamiana, and that genes present in operons hrpB and hrpD and the hrpF gene are required for pathogenicity in hosts and induction of the hypersensitive response in nonhost plants.