BBlecture16S09s - Gm+ve1 The Bacteria (Gram Positive and...

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The The Bacteria Bacteria (Gram Positive and (Gram Positive and Other Bacteria) Other Bacteria) 16.1: 16.1: Nonsporulating Gram-Positive Bacteria Nonsporulating Gram-Positive Bacteria 16.2: 16.2: Endospore-Forming, Gram-Positive Bacteria Endospore-Forming, Gram-Positive Bacteria 16.3: 16.3: Cell Wall-Less Gram-Positive Bacteria: the Cell Wall-Less Gram-Positive Bacteria: the Mycoplasmas Mycoplasmas 16.5: 16.5: Actinobacteria: Actinobacteria: Mycobacterium Mycobacterium 16.6: 16.6: Filamentous Actinobacteria: Streptomyces and Filamentous Actinobacteria: Streptomyces and Relatives Relatives 16.7: 16.7: Cyanobacteria Cyanobacteria Gm+ve1
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nonsporulating gram positive bacteria nonsporulating gram positive bacteria (Firmicutes) (Firmicutes) : : Staphylococcus and Micrococcus aerobic, catalase positive resistant to drying and high salt levels media with 7.5% NaCl used to select for this group often pigmented staphylococci commonly found on animals (including human skin) Micrococcus - actually in the Actinobacteria group morphologically similar to staphylococci isolated from inanimate objects, dust, skin O/F (oxidation-fermentation test) to distinguish: Micrococcus (strict aerobe) : acid from glucose aerobically Staphylococcus (facultative) : acid from glucose aerobically & anaerobically Gm+ve2
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gram-stained gram-stained S. aureus S. aureus cells within infected tissue cells within infected tissue (light micrograph by Tomalty; ASM Microbe Library) Gm+ve3
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boil on hand staphylococcal scalded skin syndrome Gm+ve3a
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nonsporulating gram positive bacteria nonsporulating gram positive bacteria : : Sarcina obligate anaerobes, acid tolerant cell division in three perpendicular planes → cubical “packets” of eight cells Gm+ve4
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nonsporulating gram positive bacteria nonsporulating gram positive bacteria : : lactic acid bacteria
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This note was uploaded on 02/04/2011 for the course BIOL 140 taught by Professor Bb during the Spring '11 term at University of Warsaw.

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BBlecture16S09s - Gm+ve1 The Bacteria (Gram Positive and...

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