壳聚糖对几种植物病原真菌的作用  

INHIBITION OF CHITOSAN TO THE GROWTH OF SEVERAL PHYTOPATHOGENIC FUNGI

作　　者：于汉寿[1] 张益明[2] 吴汉章[1] 陈永萱[2] 吴川德 

机构地区：[1]江苏丘陵地区镇江农科所,句容212400 [2]南京农业大学,南京210095

出　　处：《天然产物研究与开发》1999年第5期33-33,共1页Natural Product Research and Development

基　　金：江苏省九五农业科技重点攻关项目!( BE96 316 - 2 )资助

摘　　要：在马铃薯葡萄糖琼脂 ( PDA)上测定了酸溶性壳聚糖 ( S- )和 2种水溶性壳聚糖 ( S- 和 S- )对 15种植物病原真菌的作用 ,结果表明 ,三种壳聚糖对供试的 15种植物病原真菌均有一定程度的抑制作用 ,抑制强度因壳聚糖的理化性质以及不同的病原真菌而有较大差异。水溶性壳聚糖 S- 可明显抑制水稻恶苗病菌分生孢子的萌发。壳聚糖的抑菌作用机制与其增加菌丝细胞膜的透性有关。The effect of three kinds of chitosan on radial growth of fifteen phytopathogenic fungi was studied in vitro. The radial growth of 15 fungi tested was inhibited by three kinds of chitosan.The antifungal activity varied with the chemical and physical properties of chitosan and phytopathogenic funfgi.The water soluble chitosan S Ⅱ can inhibit the spore germination of Fusarium moniliforme causing rice bakanae disease.The antifungal activity of chitosan is related to its ability to increase the permeability of the fungal plasma membrane.

关 键 词：壳聚糖 植物病原真菌 抑制 渗透性 

分 类 号：S143.8[农业科学—肥料学] S432.44[农业科学—农业基础科学]