Seq of events strepto salivarius is commensal film

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Unformatted text preview: US IS COMMENSAL, FILM CAUSES BUILDUP OF S. SALIVARIUS. DENTAL PLAQUE “FILM” OF S. MUTANS; “CORN COB APPEARANCE” ACTINOMYCES IS NOT VISIBLE UNDERNEATH THICK LAYER OF S. MUTANS CARIES= CAVITIES. 45:15 11/18 Lactobacillus sp. on vaginal epithelium “ONE ROD” WHEN VAGINAL EPITHELIUM IS IN BALANCE, LACTOBACILLUS COLONIZES THE VAGINA. IT INHIBITS YEAST FROM GROWING. WHEN YOU TAKE AN ANTIBIOTIC, YOU REDUCE THE NUMBER OF ORGANISMS GROWING THERE AND ALLOW FOR THE GROWTH OF POTENTIALLY HARMFUL MICROBES (YEAST) AND LEAD TO AN INFECTION. STRESS CAN ALSO HAVE A SIMILAR RESPONSE. GENERAL TERM FOR BACTERIA THAT OCCUPIES A NICHE AND INHIBITS THE GROWTH OF A POTENTIALLY PATHOGENIC BACTERIA FROM GROWING IS 1. MICROCOCCUS ON SKIN 2.LACTOBACILLUS ON VAGINA =BACTERIAL INTERFERENCE GOOD THINGS BACTERIA CAN DO: MAKE CHEESE/FERMENTATION OF MILK PRODUCT Streptococcus lactis (pH , renin) Whey HARD CURD Curd TEST TUBE WITH MILK INNOCULATED WITH S. LACTIS, TAKES MILK AND PRODUCES LACTIC ACID, SEPARATES MILK INTO CURD AND WHEY (LIQUID) Milk: Lactose Casein Cottage cheese etc. OR INOCULATE WITH P. SHERMANII, WILL PRODUCE TAKE CURD AND REINOCULATE WITH DIFFERENT BACTERIUM, YOU WILL GET THE FOLLOWING CHEESES Lactobacillus casei = Jack cheese LOW TEMPERATURE AGE IT AND GET Chedder chedder Proprionibacterium shermanii = Swiss cheese Penicillium camemberti = Camembert cheese ACETIC AND PROPRIONIC ACID AND CO2 GAS TRAPPED IN CURD RESULTS IN HOLES IN CHEESE NUTTY FLAVOR FROM PROPRIONIC ACID AND SHARP FLAVOR FROM ACETIC ACID Lactobacillus bulgaricus & Streptococcus thermophilus = Yogurt (soft curd) Streptococcus cremoris, S. lactis & Leuconostoc mesenteroides = Buttermilk Lactobacillus acidophilus = Acidophilus milk ACTINOMYCETE LINE Text • Coryneform or Diphtheroid bacteria • Mycobacterium sp. IRREGULAR RODS • Actinomyces sp. FILAMENTOUS REPLICATES BY FRAGMENTATION ACTINOMYCES HAS TRUE BRANCHING, LOOKS LIKE MINI MOLD. DOES NOT HAVE NUCLEAR MEMBRANE, ECT. • Streptomyces sp. TRUE BRANCHES AN...
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