4. phylum spirochaetes
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L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
4. Phylum Spirochaetes
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
4. Phylum Spirochaetes
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
4. Phylum Spirochaetes
Gram negativeAquatic environments; some pathogensUnique morphology. Endoflagella
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
4. Phylum Spirochaetes
Treponema: animal and human hosts, microaerophilic, very sensitive to environmental stress
T. pallidum: syphilis
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
5. Phylum Bacteroidetes
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
5. Phylum Bacteroidetes
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
5. Phylum Bacteroidetes
Genus Bacteroides
Rods, strict anaerobes
Fermentative
Gut comensals
Pathogens
Gram negativeComplex substratesHabitats: digestive tract, hypersaline environments, water and soil
1010 – 1011 Cells per gr in
feces
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
5. Phylum Bacteroidetes
Rumen metabolism
Rumen microbiota
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
5. Phylum Bacteroidetes
CytophagaAbundant in soils and watersMany species degrade cellulose, chitine and/or agar Fish pathogens
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria High GC Gram POSITIVES
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
DIFTERIA
Gram positiveCorynebacterium C. diphteriae (Diphteric toxin)Anaerobic facultative rodsSaprophitic and pathogenic
pseudomembrane
BBE
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
Mycolic acids
Ziehl-Neelsen staining
Mycobacterium
Acid fastness
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
Mycobacterium tuberculosis (Koch’s bacillum) TUBERCULOSIS
MULTIDRUG RESISTANT TB!!!
BBE
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
Tuberculosis SIDA
Tubercles
Mycobacterium tuberculosis TUBERCULOSIS
Tuberculin test
BBE
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
Mycobacterium leprae LEPROSY (Hansen’s disease)Tuberculoid leprosy Lepromatous leprosy
BBE
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum Actinobacteria
Filaments without cross-wallsMycellium and spores (conidia - no endospores)G+C range: 63-78% (the highest)> 500 species, soil microbiotaPigments / geosminesChemoorganoheterotrophic aerobesAntibiotic producers
Género Streptomyces
Mycelium
Spore-bearing structures
Spore formation
Streptomyces
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
6. Phylum ActinobacteriaStreptomyces: antibiotic production
Soil sample
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
7. Phylum Chlamydiae
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
7. Phylum Chlamydiae
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
7. Phylum Chlamydiae LIFE CYCLE
Gram negativasObliged intracellular parasitesNo PG (genes present)“Energetic parasites” (ATP) (genes present)Tansmission: Air and direct contactElementary body: chlamydiospore
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
7. Phylum Chlamydiae
NGU, very high incidence
L. 6: Bacteria Domain (III). 2nd Biology ARA 2013-2014
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