Influence of Agar on the Morphology and Pigmentation of Streptomycetes

摘要

The effect of various agar preparations in a chemically defined medium on promoting the development of taxonomic characteristics of streptomycetes was studied. Various agar products gave different results. Agar purified to a certain extent was favorable for good, constant development of such characteristics. The presence of certain metals played a great role in this domain. Agar purified to a high degree may give poor results unless supplemented with the proper metals. Recommendations were made for the standardization of agar media used for the study of characteristics of streptomycetes.