August 8, 2023 Aminosaurs, Bacteria, Cattle, Complement, Horseshoe, Respiratory System, Symbiosis, Trachea Tracheal cytotoxin (TCT) is a soluble piece of peptidoglycan (PGN) found in the cell wall of all gram-negative bacteria, but only some bacteria species release TCT including Bordetella pertussis, Vibrio fischeri, and Neisseria gonorrhoeae Read More share: Fb. Tw. Pin.