Hello Abhijeet, Clostridium carboxidivorans P7 (T); the Type Strain of Clostridium carboxidivorans; is an anaerobe that can ferment syngas (mainly CO or CO2 and H2) to produce acids (acetic and butyric acid), ethanol and long-chain alcohols (butanol and hexanol). This anaerobic bacterium harbors a 5,732,880 bp circular chromosome and a 19,902 bp mega-plasmid with 4951 and 22 coding DNA sequence (CDS), respectively. So then, Yes, your bacterium has a native plasmid.