摘要
沙打旺黄萎病菌（Ｖｅｒｔｉｃｉｌｉｕｍｄａｈｌｉａｅ，营养体亲和群ＶＣＧ２Ｂ）在５～３０℃均能生长，适温２０～２５℃，在３５℃时不能生长。在ｐＨ值４～１０范围内都能生长，２５℃时最适ｐＨ值为５．０～９．０。该菌利用可溶性淀粉、葡萄糖、蔗糖、乳糖、麦芽糖或甘油作碳源时均能正常生长，并生成微菌核，利用硝酸钾、尿素、甘氨酸作氮源时生长较快，以蛋白胨作氮源时，生长较慢。
The pathogen of Verticillium wilt of Astragalus adsurgens (Verticillium dahliae, VCG 2B) showed colony growth on PDA plates at 5～30℃, with optimum temperature 20～25℃, and stopped growing at 35℃. The optimum pH-value for colony growth at 25℃ was 5.0～9.0. The fungus was able to use glucose, lactose, maltose, sucrose, glycerol and soluble starch as carbon sources, and KNO 3, urea, and glycine as nitrogen sources for colony growth and microsclerotia formation. Its growth was markedly arrested and the ability of microsclerotium-forming lost when peptone was suppled in Czapek's agar.
出处
《草业学报》
CSCD
1996年第3期18-21,共4页
Acta Prataculturae Sinica
基金
国家动植物检疫总局"八五"口岸植检课题
关键词
牧草
沙打旺
黄萎病
温度
酸碱度
病原菌
Astragulus adsurgens, Verticillium wilt, Verticillium dahliae, temperature, pH-value, carbon source, nitrogen sources
