Effect of Lanthanum on Mycelium Growth and Some Pathogenic Factors

文献类型： 外文期刊

第一作者： Mu Kangguo

作者： Mu Kangguo;Zhang Chi;Zhao Xiuqin;Cui Jianyu;Zhang Wenji;Hu Lin

作者机构：

关键词： pathogenic fungi;lanthanum;mycelium growth;pathogenic factor;rare earths

期刊名称：JOURNAL OF RARE EARTHS （ 影响因子：3.712； 五年影响因子：3.326 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Three soil-transmitted pathogenic fungi including Rhizoctonia solani, Fusarium solani, and Pythium sp. were selected to investigate the effect of lanthanum on their growth and the pathogenic enzymes using liquid culture. Variance analysis shows significant differences among treatments with different concentrations of lanthanum (Rhizoctonia solani F = 6.75 > F _(0.01) =5.99; Fusarium solani F = 18.1 > F_(0.01) = 5.99, Pythium sp. F = 23 .29 > F_(0.01) = 5.99) . The inhibitory effect of lanthanum on pathogenic fungi increased with an increase in La concentration. The activities of the three pathogenic enzymes per gram mycelium were promoted remarkably. However, the quantity or the activities of the total enzymes were inhibited because of the strong inhibition of mycelium growth by lanthanum. Meanwhile, the effect of lanthanum on toxins of pathogenic fungi were studied using the seed germination experiment. Toxins of pathogenic fungi are influenced by lanthanum and the virulence decreases significantly with the increase of lanthanum concentration.

分类号： F40

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