生物是进化而来的。各种细菌都有各自的历史渊源,每一个种之间,存在着或近或远的亲缘关系。随着人们对生物界认识的深化,逐步形成了研究细菌分类的科学分支。长期以来,细菌是按亲缘关系分类归群。根据实验结果将资料用双歧法整理,参照不同分类系统的检索表,基于主要特征加以鉴定, Creatures are evolved. A variety of bacteria have their own historical origin, between each species, there is near or far kinship. As people’s understanding of the biological world deepens, gradually formed a scientific branch of bacterial classification. For a long time, bacteria are grouped by relationship. According to the experimental results, the data were sorted by bifurcation method, and the retrieval tables of different classification systems were referenced, identified based on the main features,