True branches and make aerial powdery spores

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Unformatted text preview: D MAKE AERIAL, POWDERY SPORES. FILAMENTOUS Coryneform or Diphtheroid bacteria MOST CORYNEFORM LIVE IN THE SOIL,, HAVE PALISADE FORMATION (STACKED RATHER THAN CHAINED). Aerobic/anaerobic, nonmotile, rod (koryne = Greek for club); pallisade forms common Proprionibacterium sp -Swiss cheese Corynebacterium sp. - Common in soil C. diphtheriae - diphtheria CORYNEFORMBACTERIA IS RESPONSIBLE FOR SECONDARY FERMENTATION OF CHEESE FOR SWISS CHEESE. PROPIONIC ACID, CO2 ACETIC ACID/ PART OF DPT;AEROSOL TRANSMISSION; PRODUCES NEUROTOXIN IN PSEUDOMEMBRANE DPT VACCINE FOR CHILDREN VACCINATE FOR TETANUS, PERTUSSIS, AND DIPTHERIA DEVASTATING CHILDHOOD DISEASE. AEROSOL TRANSMISSION. ORGANISM’ ESTABLISHES ITSELF IN UPPER RESPIRATORY TRACT, CAUSES INFLAMMATION INFLAMMATORY PRODUCTS START TO BUILD UP.ORGANISM GROWS IN INFLAMMATORY PRODUCT AND CREATES A LAYER OF INFLAMMATORY EXUDATE AND BLOCKS SURFACES OF UPPER AIRWAYS. THIS PRODUCES A NEUROTOXIN, THE NEUROTOXIN AFFECTS BREATHING, COGNITION, BLURRED VISION, AND RESPIRATORY FAILURE. Mycobacterium sp. Most are saprophytic, some pathogens. Pleomorphic rods with some rudimentary filament. Organisms are acid fast due to the presence of mycolic acid in the cell wall. NUTRIENTS MUST PENETRATE WAXY, HYDROPHOBIC LAYER, HARD TO GET NUTRIENTS IN AND OUT THUS SLOW GROWING. IF YOU ARE INFECTED WITH MYCOBACTERIA, THE IMMUNE SYSTEM MUST ATTACK IT IN SOME WAY, BUT THE WAXY COAT PROTECTS THE CELL. IN TUBERCULOSIS, A MYCOBACTERIUM COLONY GROWS AND CAUSES INFLAMMATORY CELLS TO RESPOND, BUT THE ORGANISM CAN STILL PERSIST. MYCOBACTERIUM IS ACID-FAST POSITIVE. IT HAS RUDIMENTARY FILAMENTS. COLONY APPEARS CHEESY DUE TO MYCOLIC ACID, R GROUPS TEND TO BE \ LONG ALIPATHIC CHAINS, TEND TO BE HYDROPHOBIC WHICH ACTS AS A WAXY LAYER THAT SURROUNDS THE CELL. SINCE CELLS ARE ON AGAR PLATE, THEY DO NOT MAKE CONTACT WITH THE PLATE BECAUSE THEY ARE HYDROPHOBIC. THEY ARE SLOW GROWING BECAUSE NUTRIENTS MUST DIFFUSE ACROSS CELL MEMBRANE, WHICH IS DIFFICULT DUE TO MEMBRANE COMPOSITION. R GROUPS ARE LONG ALIPH...
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