Spirochaetes


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Spirochaetes

Gram-negative (see GRAM'S STAIN) spiral-shaped BACTERIA that may be free-living, parasitic (see PARASITE).or PATHOGENIC. They are motile and can be AEROBES, FACULTATIVE ANAEROBES or anaerobes. They include some important PATHOGENS, for example, Treponema pallidum, the cause of SYPHILIS, and Leptospira species that cause Leptospirosis, a disease spread by water contaminated with the spirochaetes.
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Phylum % unclassified (derived from Bacteria) 14.48 Proteobacteria 12.91 Firmicutes 11.32 Actinobacteria 11.25 Bacteroidetes 10.16 Verrucomicrobia 8.20 Acidobacteria 5.73 Planctomycetes 4.34 Cyanobacteria 3.33 Aquificae 2.61 Nitrospirae 2.52 Spirochaetes 2.26 Thermotogae 2.10 Deinococcus-Thermus 2.04 Chlamydiae 1.82 Tenericutes 1.53 Dictyoglomi 1.26 Chloroflexi 0.73 Synergistetes 0.59 Thermodesulfobacteria 0.49 Chlorobi 0.33 Fibrobacteres 0.00 Gemmatimonadetes 0.00 Tabla 5: Abundancia relativa (%) de los principales filos identificados en muestras de suelos no contaminados del distrito Usquil, provincia Otuzco, departamento La Libertad.
The histopathological examination revealed lesions of haemorrhagic inflammation, superficial necrosis of the mucosa and the presence of bacteria morphologically compatible with spirochaetes (Figure 4b).
Li, "A surface-exposed neuraminidase affects complement resistance and virulence of the oral spirochaete Treponema denticola," Molecular Microbiology, vol.
pallidum flagellar proteins with a number of proteins of distantly related spirochaetes were observed [73], and that restricted their diagnostic significance.
The presence of spirochaetes in human gastric mucosa.
[22] Radolf JD, Caimano MJ, Stevenson B, Hu LT Of ticks, mice and men: understanding the dual-host lifestyle of Lyme disease spirochaetes. Nat Rev Microbiol.
Spiral microorganisms, similar to spirochaetes, have been frequently detected in the rumen and are represented by the genus Treponema (Stewart et al., 1997).
INTRODUCTION: Leptospirosis is a zoonosis of global distribution caused by infection with pathogenic spirochaetes of the genus Leptospira.
The Bacteroidetes Spirochaetes Tenericutes (Mollicutes) Acidobacteria Fibrobacteres Fusobacteria Dictyoglomi Gemmatimonadetes Lentisphaerae Verrucomicrobia Chlamydiae and Planctomycetes.
spirochaetes prevotella veillonella bacteroides and capnocytophaga in the gingival crevice of partially impacted third molars.17