Streptomyces glaucoviolaceus var. pallens

例句：

1. 1.The bacterium streptomyces is a common cause of skin infections.
   链球菌是一种常见的皮肤感染原因。
2. 2.Scientists are using this bacterium to study the human immune system.
   科学家们正在使用这种细菌来研究人体的免疫系统。
3. 3.The streptomyces bacteria can be found in soil and water, and they play an important role in the ecosystem.
   链霉菌可以在土壤和水中找到，它们在生态系统中起着重要的作用。