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Bacteria
Question | Answer |
---|---|
What are some features of Bacillus? | Gram + rods, facultative anaerobes, catalase +, endospore forming saprophyte |
What are the 2 important species of Bacillus? | B. cereus- acute mastitis, food poisoning B. anthracis- anthrax |
What are some features of Clostridium? | Gram + rods, strict anaerobes, catalase -, endospore forming saprophyte and gut commensal |
What are some important species of Clostridium? | C. tetani- tetanus C. botulinum- botulism |
What are some features of Campylobacter and Lawsonia? | Gram - rods that are vibrious, aerobes or microaerophilic, flagella, obligate parasites in GIT |
What are some important Campylobacter and Lawsonia? | C. jejuni- enteritis C. fetus subsp. veneralis L. intracellularis- proliferative enteritis in pigs |
What are some features of Spirochaetales? | Gram -, slender, flexible and helical, anaerobes, microaerophilic or aerobes |
What are the 4 pathogenic genera of Spirochaetales? | Brachyspira, Borrelia, Leptospira, Treponema |
What are some features of Enterobacteriaceae? | Gram - rods, facultative anaerobes, oxidase -, common to have antimicrobial resistance |
What are some of the important genera of Enterobacteriaceae? | Escherichia, Klebsiella, Salmonella, Proteus, Yersinia |
What are some features of Proteus? | Gram- rods, oxidase -, non-lactose fermenter, very motile, opportunistic pathogen |
What are some features of Yersinia? | Gram - rods, oxidase -, non-motile, maintained in carriers |
What are the 4 pathogenic species of Yersinia? | Y. pestis- bubonic plague Y. pseudotuberculosis Y. enterocolitica Y. yuckeri- enteric redmouth in fish |
What are some features of Listeria? | Gram + rods, widely distributed in nature and wide temp range, motile, facultative intracellular parasite |
What is the most significant Listeria pathogen? | L. monocytogenes- facultative anaerobe, catalase + |
What are some features of Erysipelothrix? | Gram+ rods, non-motile |
What is the most important Erysipelothrix pathogen? | E. rhusiopathiae- facultative anaerobes, catalase - |
What are some features of Mycobacterium? | Gram +, slender rods, strict aerobes, catalase + |
What are some important Mycobacterium? | M. bovis- TB in cattle M. avium subsp. paratuberculosis- Johne's disease M. leprae- leprosy in humans |
What are some features of Nocardia? | Gram + branching rods, opportunistic pathogen |
What is the most important Nocardia pathogen? | N. asteroides- strict aerobe, catalase + |
What are some features of Dermatophilus? | Gram + rods, skin disease, strict aerobe, cellular life cycle |
What is the most important Dermatophilus pathogen? | D. congolensis |
What are some features of Mycoplasma? | No cell wall therefore no gram stain, pleomorphic, facultative anaerobes, SLOW growth |
What are some features of Pasteurellaceae? | Gram - rods or coccobacilli, facultative anaerobes, non motile |
What are some features of Moraxella? | Gram - rods, obligate aerobe, non motile, oxidase + |
What are some important Moraxella pathogens? | M. bovis- pinkeye in cattle M. ovis- pinkeye in sheep etc |
What are some features of Brucella? | Gram - coccobacilli, strict aerobe, non motile, oxidase + |
What are some features of Pseudomonas and Burkholderia? | Gram - rods, oxidase +, strict aerobes, motile, odour |
What are some features of Chlamydiales? | Gram -, obligate intracellular, no peptidoglycan cell wall |
What are some features of Actinomycetales? | Gram + rods, aerobes and anaerobes, saprophyte |
What are some features of Rhodococcus? What is the only significant pathogen? | Gram + rods, mostly harmless, only significant pathogen R. equi- rattles in horses |
What are some features of Corynebacterium? | Gram + small rod, aerobic or facultative anaerobe, catalse + |
What are some features of Staphylococcus? | Produce catalase, commensals, gram +, facultative anaerobes |
What are some significant staphs? | S. aureus S. epidermidis- skin commensal S. saprophyticus- UTI |
What are some features of Streptococcus? | Gram + cocci, facultative anaerobes, catalase - |
What are some significant streps? | S. equi subsp equi- strangles in horses S. agalacitae- bovine mastitis |