1. Abafungin has antibiotic activity against gram-positive bacteria as well as sporicidal activity. 2. Endiadric acid C is reported to have better antibiotic activity than ampicillin. 3. A number of early studies were directed towards harnessing its antibiotic activity . 4. The significance of PZN stems from its narrow-spectrum antibiotic activity . 5. "' Caprazamycins "'are chemical compounds isolated from " Streptomyces " which have some antibiotic activity . 6. It also showed antibiotic activity against " Mycobacterium tuberculosis " and " Mycobacterium avium ". 7. "' Guanacastepene A "'is a compound showing antibiotic activity . 8. Elansolid A3 is a quinone methide from the bacterium " Chitinophaga sancti " that displays antibiotic activity . 9. "Coprinopsis lagopus " produces four sesquiterpene compounds that are collectively named lagopodins, which have some antibiotic activity . 10. The metabolite desfurolyceftiofur also has antibiotic activity .
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