| SaccharococcusSaccharococcus thermophilus
 SaccharomonosporaSaccharomonospora azurea
 Saccharomonospora cyanea
 Saccharomonospora viridis
 SaccharophagusSaccharophagus degradans
 SaccharopolysporaSaccharopolyspora erythraea
 Saccharopolyspora	gregorii
 Saccharopolyspora	hirsuta
 Saccharopolyspora	hordei
 Saccharopolyspora	rectivirgula
 Saccharopolyspora spinosa
 Saccharopolyspora	taberi
 SaccharothrixSaccharothrix australiensis
 Saccharothrix coeruleofusca
 Saccharothrix espanaensis
 Saccharothrix longispora
 Saccharothrix mutabilis
 Saccharothrix syringae
 Saccharothrix tangerinus
 Saccharothrix texasensis
 | SagittulaSagittula stellata
 SalegentibacterSalegentibacter salegens
 SalimicrobiumSalimicrobium album
 SalinibacterSalinibacter ruber
 SalinicoccusSalinicoccus alkaliphilus
 Salinicoccus hispanicus
 Salinicoccus roseus
 SalinisporaSalinispora arenicola
 Salinispora tropica
 SalinivibrioSalinivibrio costicola
 SalmonellaSalmonella bongori
 Salmonella enterica
 Salmonella subterranea
 Salmonella typhi
 | SanguibacterSanguibacter keddieii
 Sanguibacter suarezii
 SaprospiraSaprospira grandis
 SarcinaSarcina maxima
 Sarcina ventriculi
 SebaldellaSebaldella termitidis
 SerratiaSerratia fonticola
 Serratia marcescens
 SphaerotilusSphaerotilus natans
 SphingobacteriumSphingobacterium multivorum
 StaphylococcusStaphylococcus arlettae
 Staphylococcus aureus
 Staphylococcus cohnii
 Staphylococcus warneri
 | StenotrophomonasStenotrophomonas maltophilia
 StreptococcusStreptococcus faecalis
 Streptococcus milleri
 Streptococcus pneumoniae
   | StreptomycesStreptomyces achromogenes
 Streptomyces cesalbus
 Streptomyces cescaepitosus
 Streptomyces cesdiastaticus
 Streptomyces cesexfoliatus
 Streptomyces fimbriatus
 Streptomyces fradiae
 Streptomyces fulvissimus
 Streptomyces griseoruber
 Streptomyces griseus
 Streptomyces lavendulae
 Streptomyces phaeochromogenes
 Streptomyces thermodiastaticus
 Streptomyces tubercidicus
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