Microbiology The role of plasmids in conjugation was first described by Lederberg and Tatum (1946) in which bacteria? A H. influenza B Pseudomonas C Escherichia coli D M. Tuberculosis 💡 Explanation The role of plasmids in conjugation was first described by Lederberg and Tatum (1946) in which bacteria? ✓ Correct Answer: C. Escherichia coli