world leading discovery streptomycin derived ''streptomyces griseus'' realization bacteria fungi represent important source pharmacologically active natural products ref name ljl ref turn led development impressive arsenal antibacterial antifungal agents including amphotericin b chloramphenicol daptomycin tetracycline ''streptomyces'' spp ref name rim ref polymyxins ''paenibacillus polymyxa'' ref name sj ref rifamycins ''amycolatopsis rifamycinica'' ref name aru ref although drugs derived bacteria employed anti infectives found use fields medicine botulinum toxin ''clostridium botulinum''
Natural science Chemistry Natural product chemistry