Shigella dysenteriae

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Revision as of 08:46, 1 April 2010 (edit) Arun sharma (Talk | contribs) (New page: '''Shigella dysenteriae''' category: CarboDB) ← Previous diff		Current revision (07:16, 9 September 2010) (edit) (undo) Arun sharma (Talk | contribs) (→References)
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	'''Shigella dysenteriae'''		'''Shigella dysenteriae'''
		+	They are Gram-negative, non-spore-forming, facultatively anaerobic, non-motile bacteria.
		+	{| border="1" style="text-align: left;"
		+	|+ '''Scientific classification'''
		+	!Kingdom || Bacteria
		+	|-
		+	! Phylum || Proteobacteria
		+	|-
		+	! Class || Gamma Proteobacteria
		+	|-
		+	! Order || Enterobacteriales
		+	|-
		+	! Family || Enterobacteriaceae
		+	|-
		+	! Genus || Shigella
		+	|-
		+	! Species || '''''S. dysenteriae'''''
		+	|-
		+	! Binomial || ''Shigella dysenteriae''
		+	|}
		+	==Surface Characteristics==
		+	Chemically, the O-antigen is a polysaccharide chain of variable length, built up by repetitive sequences of tetra- to hexasaccharides. It consists of a basic tetrasaccharide repeating unit consisting of three rhamnoses and one N-acetylglucosamine was common to all S. flexneri strains (except serotype 17): -2)-α-L-Rhap-(1-->2)-α-L-Rhap-(1-->3)-α-L-Rhap-(1-->3)-β-D-GlcpNAc-(1-->
		+	==Transmission==
		+	S. dysenteriae, spread by contaminated water and food. Contamination is often caused by bacteria on unwashed hands during food preparation, or soiled hands reaching the mouth
		+	==Pathogenic Activity==
		+	They causes the most severe dysentery because of its potent and deadly Shiga toxin, but other species may also be dysentery agents.
		+	==References==
		+	[http://en.wikipedia.org/wiki/Shigella_dysenteriae Wikipedia]
-	[[category: CarboDB]]	+
		+
		+
		+
		+
		+	[[category:PolysacDB]]

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Current revision

Shigella dysenteriae

They are Gram-negative, non-spore-forming, facultatively anaerobic, non-motile bacteria.

Scientific classification

Kingdom	Bacteria
Phylum	Proteobacteria
Class	Gamma Proteobacteria
Order	Enterobacteriales
Family	Enterobacteriaceae
Genus	Shigella
Species	S. dysenteriae
Binomial	Shigella dysenteriae

Contents 1 Surface Characteristics 2 Transmission 3 Pathogenic Activity 4 References

[edit] Surface Characteristics

Chemically, the O-antigen is a polysaccharide chain of variable length, built up by repetitive sequences of tetra- to hexasaccharides. It consists of a basic tetrasaccharide repeating unit consisting of three rhamnoses and one N-acetylglucosamine was common to all S. flexneri strains (except serotype 17): -2)-α-L-Rhap-(1-->2)-α-L-Rhap-(1-->3)-α-L-Rhap-(1-->3)-β-D-GlcpNAc-(1-->

[edit] Transmission

S. dysenteriae, spread by contaminated water and food. Contamination is often caused by bacteria on unwashed hands during food preparation, or soiled hands reaching the mouth

[edit] Pathogenic Activity

They causes the most severe dysentery because of its potent and deadly Shiga toxin, but other species may also be dysentery agents.

[edit] References

Wikipedia