Streptomyces is the largest genus of Actinomycetota, and the type genus of the family Streptomycetaceae. Over 700 species of Streptomyces bacteria have been described. As with the other Actinomycetota, streptomycetes are gram-positive, and have very large genomes with high GC content. Found predominantly in soil and decaying vegetation, most streptomycetes produce spores, and are noted for their distinct "earthy" odor that results from production of a volatile metabolite, geosmin. Different strains of the same species may colonize very diverse environments.
Streptomyces scabiei is a streptomycete bacterium species found in soils around the world. Unlike most of the 500 or so Streptomyces species it is a plant pathogen causing corky lesions to form on tuber and root crops as well as decreasing the growth of seedlings. Along with other closely related species it causes the potato disease common scab, which is an economically important disease in many potato growing areas. It was first described in 1892, being classified as a fungus, before being renamed in 1914 and again in 1948. Several other species of Streptomyces cause similar diseases to S. scabiei but other, more closely related species, do not.
Streptomyces europaeiscabiei or is a streptomycete bacterium species that is associated with common scab in potatoes. Its type strain is CFBP 4497T.
Streptomyces stelliscabiei or is a streptomycete bacterium species that is associated with common scab in potatoes. Its type strain is CFBP 4521T.
Streptomyces reticuliscabiei is a streptomycete bacterium species that is associated with netted scab in potatoes. Its type strain is CFBP 4517T. It is considered to be part of a cluster together with S. turgidiscabies, however they cause different diseases, the former involved in common scab.
Streptomyces thermocarboxydovorans is a streptomycete bacterium species. It is moderately thermophilic and carboxydotrophic, with type strain AT52.
Streptomyces thermocarboxydus is a streptomycete bacterium species. It is moderately thermophilic and carboxydotrophic, with type strain AT37.
Streptomyces malaysiensis is a streptomycete bacterium species. At maturity, the aerial hyphae of this species differentiates into tight, spiral chains of rugose, cylindrical spores. Its type strain is ATB-11T.
Streptomyces turgidiscabies is a streptomycete bacterium species, causing scab in potatoes. It has flexuous spore, the latter which are cylindrical and smooth. The type strain is SY9113T. It is almost identical to Streptomyces reticuliscabiei; however, they are considered distinct species given the diseases they cause are different.
Amycolatopsis rifamycinica is a species of Gram-positive bacteria in the genus Amycolatopsis. It produces the rifamycin antibiotics, which are used to treat mycobacterial diseases such as tuberculosis and leprosy. The type strain of Amycolatopsis rifamycinica has been reclassified several times. When it was first isolated from a French soil sample in 1957, it was identified as Streptomyces mediterranei. In 1969, the species was renamed Nocardia mediterranei because its cell wall was thought to resemble that of Nocardia species. The species was renamed Amycolatopsis mediterranei in 1986 after finding that it is not susceptible to Nocardia phage and has a cell wall that lacks mycolic acid. Finally, in 2004, it was determined that strain DSM 46095 represented a new species, independent of Amycolatopsis mediterranei, based on 16S ribosomal RNA sequencing. The new species was named Amycolatopsis rifamycinica.
Streptomyces atriruber is a bacterium species from the genus Streptomyces which has been isolated from an equine placenta in Lexington in Kentucky in the United States.
Streptomyces cellulolyticus is a cellulolytic bacterium species from the genus of Streptomyces.
Streptomyces scopiformis is a bacterium species from the genus of Streptomyces which has been isolated from soil in China.
Streptomyces seoulensis is a bacterium species from the genus of Streptomyces which has been isolated from soil from Korea. Streptomyces seoulensis produces lipoamide dehydrogenase.
Streptomyces speibonae is a bacterium species from the genus of Streptomyces which has been isolated from soil from Cape Town in South Africa. Streptomyces speibonae produces the antibiotic oxytetracycline.
Streptomyces thermoalcalitolerans is a bacterium species from the genus of Streptomyces which has been isolated from garden soil in Yogyakarta on Indonesia.
Streptomyces thermocoprophilus is a thermophilic bacterium species from the genus of Streptomyces which has been isolated from poultry faeces in Malaysia.
Prauserella rugosa is a bacterium from the genus Prauserella which has been isolated from the rumen of cattle.
Streptomyces odonnellii is a bacterium species from the genus of Streptomyces which has been isolated from soil from Brazil.
Glycomyces is a genus of Gram-positive bacteria.
