english: The mold was a species  in the Penicillium genus, so Fleming dubbed  the antibacterial compound “penicillin.” What Fleming stumbled upon  was a microbial defense system.
non_english: Buđ je vrsta u rodu peniciliuma, tako da je Fleming nazvao antibakterijsko jedinjenje penicilin. Fleming je naišao na mikrobski odbrambeni mehanizam.