However, the infected mice challenged with the heterologous strain of plasmodia were died completely. 而异种疟原虫攻击时小鼠全部感染并死亡。
In the research of secondary metabolism, biosynthesis gene clusters are first cloned into E. coli strains, then transferred into actinomycetes to make gene disruption or heterologous expression by another E. coli strain. 抗生素等次级代谢的研究需要借助大肠杆菌菌株进行基因克隆,并通过特殊菌株介导属间接合转移以便开展基因中断或基因簇异源表达等研究。