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期 刊 ：植物保护学报 2008年

关键词：根腐病；病原菌鉴定；川芎；典型症状；序列测定；病原鉴定；地上部；镰刀菌；再分离；分离菌株；

Keywords:safener, metabolism, P450, GSH,

摘 要 ：川芎Ligusticum chuanxiong Hort为四川地道中药材[1-2],其产量占全国川芎商品量的90%以上.随川芎种植面积的扩大,川芎病害问题日益突出,其中以根腐病的危害最大,发病率通常为25%～38%,严重时达50%～70%,给川芎生产造成严重损失[3].本研究对川芎根腐病的症状进行系统观察,利用形态学,并结合rDNA-ITS序列测定,对该病的病原菌进行了鉴定.

Abstract:Safeners are chemical agents that reduce the phytotoxicity of herbicides to crops by physiology or biochemical, without reducing the effectiveness of herbicides. Safeners affect the absorption and transmission of crops, also induce the activity of P450-induced metabolism, glutathione and ALS in crops. Particular attention has been paid to defining the biochemical and physiological mechanisms on safener, not only to assist safener development and optimization, but also as a means of understanding and manipulating the mechanisms which contribute to herbicide selectivity and resistance. This paper reviews the progress of the researches in safener biochemical and physiological mechanisms and prospect the future research needs.

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