21. Aerotolerant anaerobes have superoxide dismutase and peroxidase but don't have catalase. 22. Gram-negative rods and anaerobes may also lead to cavernous sinus thrombosis. 23. Organisms containing OLE RNA are predominantly extremophiles and anaerobes . 24. Strain CKB is a Gram negative, facultative anaerobe belonging to the Betaproteobacteria. 25. It is a facultative anaerobe capable of aerobic respiration. 26. This motile bacillus is a gram negative, facultative anaerobe and a spirochaete. 27. Each of these genera contains a single species and they are strict anaerobes . 28. It is an obligate anaerobe , meaning that oxygen is poisonous to the cells. 29. And facultative anaerobes can grow without oxygen but use oxygen if it is present. 30. All sulfate-reducing organisms are strict anaerobes .
