Chemical compound produced by one organism which inhibits the growth of other organisms.
Antibiotics of fungal origin:
|
Antibiotics |
Microbial sources |
Mode of action |
|
1.     Amphicellin |
Penicillium spp. |
Check cell wall synthesis |
|
2.     Cephalosporin |
Cephalosporium spp. |
Check cell wall synthesis |
|
3.     Fumagallin |
Aspergillus fumigatus |
Check protein synthesis |
|
4.     Methicellin |
Penicillium spp. |
Check cell wall synthesis |
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Antibiotics of bacterial origin:
|
Antibiotics |
Microbial sources |
Mode of action |
|
1.     Carbamycin |
Streptomyces halstedi |
Check protein synthesis |
|
2.     Chloromphenicol |
Streptomyces venizylae |
Check protein synthesis |
|
3.     Erythromycin |
Streptomyces erythraceus |
Check protein synthesis |
|
4.     Neomycin |
Streptomyces tradiae |
Induces abnormal protein synthesis |
|
5.     Terramycin |
Streptomyces rimosus |
Check protein synthesis |
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Thiamine, Riboflavin, Paraaminobenzoic acid, Folic acid etc. are produced by Yeasts.
- Riboflavin: Clostridium acetobutylicum and Asbhya gossipi
- Cynocobalamine: Streptomyces gricius
- Vitamin D: Streptomyces carlsbergensis and Aspergillus spp.
- Vitamin C: Acetobacter spp.
- Microbes also help in steroids, Ergotin, Glycerine, Gobar gas plants etc.