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罗伦隐球酵母菌 [Cryptococcuslaurentii (Kuffer .)Skinner]是从苹果果实表面分离筛选获得的一种广谱抗性的拮抗菌。通过对该拮抗菌对葡萄 (VitisL .)采后由于机械伤引起的自然发病的抑制效果研究表明 ,C .lau rentii能有效抑制葡萄采后伤口引起的自然发病率 ,其拮抗效果与拮抗菌的使用浓度成正比。外加钙离子对拮抗菌的抑病效果没有明显作用 ,而外加一定浓度的NYDB营养液能提高该拮抗菌在伤口处的菌群数量 ,大幅度增加其抑病效果。同时 ,在NYDB营养成分中 ,以酵母浸粉对增强拮抗菌抑病效果的作用最大
Cryptococcus laurentii (Kuffer.) Skinner] is a broad spectrum resistant antagonistic bacterium isolated and screened from apple fruit surface. The inhibitory effect of this antagonistic bacterium on the natural pathogenesis of Vitis L. postharvest due to mechanical injury showed that C. lau rentii could effectively inhibit the natural incidence caused by grape post-harvest wounds and its antagonistic effect was similar to that of antagonistic bacteria Use concentration is proportional. The addition of calcium ion had no significant effect on the inhibitory effect of antagonistic bacteria. However, adding a certain concentration of NYDB nutrient solution could increase the flora number of the antagonistic bacteria at the wound site and greatly increase its inhibitory effect. At the same time, yeast nutrients in the NYDB to enhance the role of antagonistic bacteria inhibit the most effective