Difference between revisions of "Dichelobacter nodosus"
| (6 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| − | {{ | + | {{unfinished}} |
| + | |||
{{Taxobox | {{Taxobox | ||
|name =''Dichelobacter nodosus'' | |name =''Dichelobacter nodosus'' | ||
| Line 9: | Line 10: | ||
}} | }} | ||
| − | ''D.nodosus'' is formerly known as ''Bacteroides''. It is a pathogenic, anaerobic, non-spore-forming Gram-negative bacteria. It causes [[Contagious Footrot|footrot]] in sheep, along with other bacteria. | + | {| cellpadding="10" cellspacing="0" border="1" |
| + | | Also known as: | ||
| + | | ''D.nodosus'' | ||
| + | |- | ||
| + | |} | ||
| + | |||
| + | |||
| + | ''D.nodosus'' is formerly known as ''Bacteroides''. It is a [[Pathogenic anaerobic non-spore-forming Gram-negative species - Overview|pathogenic, anaerobic, non-spore-forming Gram-negative bacteria]]. It causes [[Contagious Footrot|footrot]] in sheep, along with other bacteria. | ||
==Characteristics== | ==Characteristics== | ||
| Line 21: | Line 29: | ||
==Immunity== | ==Immunity== | ||
| − | A | + | A Homologous antibody to the fimbrial antigen prevents adhesion and protects against ''D.nodosus''. The antibody must penetrate the epidermal layers and reach adequate concentration on the skin surface. A vaccine is available against ''D.nodosus''. Strains can be detected by ELISA and PCR. |
For more information on [[Contagious Footrot]]. | For more information on [[Contagious Footrot]]. | ||
| + | [[Category:Pathogenic_anaerobic_non-spore-forming_Gram-negative]] | ||
| − | + | [[Category:To_Do_-_AimeeHicks]] | |
| − | + | [[Category:To_Do_-_Review]] | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | [[Category: | ||
| − | |||
| − | |||
| − | [[Category: | ||
Revision as of 11:49, 30 July 2010
 |
This article is still under construction. |
| Dichelobacter nodosus | |
|---|---|
| Phylum | Proteobacteria |
| Order | Cardiobacteriales |
| Family | Cardiobacteriaceae |
| Genus | Dichelobacter |
| Species | D.nodosus |
| Also known as: | D.nodosus |
D.nodosus is formerly known as Bacteroides. It is a pathogenic, anaerobic, non-spore-forming Gram-negative bacteria. It causes footrot in sheep, along with other bacteria.
Characteristics
D.nodosus are large rods with terminal swellings. They have long, polar fimbriae. There are 16 antigenic types of fimbriae, which can be used to differentiate strains antigenically. All of the strains possess the same O antigen. Colonies of virulent strains have a dark central zone, a pale granular middle zone and an irregular periphery.
Pathogenesis
Thermostable proteases and elastase contribute to the pathogenesis of D.nodosus. Keratinolytic proteases are required for virulence and fimbriae are required for adhesion to hoof.
D.nodosus is a primary pathogen of epidermal tissues of the hoof of ruminants, surviving briefly in the environment. It can be passed from animal to animal.
Immunity
A Homologous antibody to the fimbrial antigen prevents adhesion and protects against D.nodosus. The antibody must penetrate the epidermal layers and reach adequate concentration on the skin surface. A vaccine is available against D.nodosus. Strains can be detected by ELISA and PCR.
For more information on Contagious Footrot.