causal agent

同根派生

英汉例句

• Crown rust is the common name both of a serious leaf-rust disease of oats and of the causal agent.
  冠锈病是燕麦的一种严重的叶锈病和病原菌。
• Study on Causal Agent, Epidemic Law and Integrated Control Techniques of Turfgrass Brown Patch Disease.
  草坪褐斑病病原菌鉴定、流行规律及其综合控制技术的研究。
• Holmes crossed two compatible races of ceratocystis ulmi, the causal agent of Dutch elm disease.
  霍姆斯曾把荷兰榆病害的致病因子，长喙壳的两个亲和小种杂交。
• It is suggested that, only Pythium myriotylum is the causal agent of the cocoyam root rot disease in Cameroon.
  研究结果表明:群结腐霉Pythium myriotylum Drechsler是喀麦隆芋艿根腐病的致病菌。
• Could you tell me the main causal agents of plant diseases?
  你给我讲讲植物病害的主要病原，好吗?