上泽克通大学 Shanghai Jiao Tong University 6.7 Antibiotics:Naturally occurring antimicrobial drugs抗生素 Antibiotics:Chemical substances produced by certain microorganisms that inhibit or kill other microorganisms 1.Broad-spectrum antibiotics:act on both G+and G- Bacteria广谱抗生素 2.Narrow-spectrum antibiotics:act on only a single group of organisms.窄谱抗生素 Eukaryotes Bacteria Obligately parasitic Bacteri Viruses RNA DNA Fungl Mycobacteria Gram-negative Gram-positive Rickettsia Bacteria Tobramycin Penicillins Nonnudleoside Sulfonamides everse-transcriptase Ceohalosporins inhibitors Cvdoheximide Polvenes Streptomycin Ouinolones usion inhibitors Nucleic acid Nucleoside analogs analogs Echinocandins Isoniazid Polymyxins Vancomycin Interferon Daptomycin gure 20-15 Bre gy of Microorganisms 11/eShanghai Jiao Tong University 6.7 Antibiotics: Naturally occurring antimicrobial drugs 抗生素 Antibiotics: Chemical substances produced by certain microorganisms that inhibit or kill other microorganisms 1. Broad-spectrum antibiotics: act on both G+ and G￾Bacteria 广谱抗生素 2. Narrow-spectrum antibiotics: act on only a single group of organisms. 窄谱抗生素