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甜菜根腐病生防菌株ASP-15抗菌物质初步分析

Heilongjiang Science(2015)

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Abstract
通过对甜菜根腐病生防菌株克雷伯氏菌ASP-15抗菌物质进行初步分析,分别对多糖、核酸、蛋白进行提取,采取抑菌试验选出抑菌能力最强的物质。发现抑菌能力最强的物质是蛋白,在pH8.0时活性最高,而在强酸和强碱的环境中活性有所下降,对温度、紫外线照射、蛋白酶不敏感。说明蛋白是生防菌株ASP-15抑菌活性物质,抗菌粗蛋白具有较强的酸碱、紫外线和酶的稳定性。
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Key words
Antifungal protein,Antagonistic activity,Stabilty
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