Bergey's Vol 4
Card Set Information
Bergey's Vol 4
High G + C Gram Positive Bacteria
Genus Actinomyces, Micrococcus, Arthrobacter, Corynebacterium, Mycobacterium, Nocardia, Propionibacterium, and Streptomyces
Straight or slightly curved rods.
Filaments with varying degrees of branching may predominate in certain species.
No aerial filaments.
Make up part of the microbial flora of the oral cavity and female genital tract.
May be pathogenic to humans and animals.
Disease caused by Actinomyces is called actinomycosis.
Is a chronic granulomatous disease characterized by abscess formation.
Catalase positive cocci that occur mainly in pairs, tetrads or irregular clusters
Most produce carotenoid pigments.
Primary natural habitats is mammalian skin.
Isolated most commonly from soil, saprophytic
Characterized by an unusual rod coccus cycle.
Cells in the logs phase are irregularly sharped rods.
Whereas cells in the statinonary phase are distinctly coccoid.
Straight to slightly curved rods that exhibits swelling.
Clubs shapes or other deviations from a uniform rod shape.
Generally facultatively anaerobic.
Palisade arrangement and nonmotile.
Older cells following staining with dyes such as methylene blue appear beaded of granulated.
This is due to the presence of metachromatic granules.
Rod acid fast bacteria.
Lipid (wax) content of cells and cell wall high.
Includes parasites, saprophytes and obligate parasites.
All found in the soil.
Capable of metabolizing paraffin.
Some are pathogenic for humans and animals.
Nocardiosis usually occur in patients with cancer, chronic pulmonary disease, or immunosuppressed patients including transplant patients that receive immunosuppressive drugs.
Site of infection is the lungs and is characterized by nodular abscesses.
May become metastatic and involve CNS and kidneys causing abscess formation in the brain and kidneys.
Fatality rates are high in undiagnosed disseminated disease.