Haemophilus ducreyi: Difference between revisions
(New page: {{Biorealm Genus}} ==Classification== ===Higher order taxa=== Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales; Pasteurellaceae; [Others may be used. Use [http://www.ncbi....) |
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==Description and significance== | ==Description and significance== | ||
Haemophilus ducreyi | Haemophilus ducreyi causes the sexually transmitted disease, Chancroid. There has been renewed interest in this bacillus because of the close connections between Chancroid and Human Immunodeficiency Virus (HIV) infections. It typically grows on the male genitalia and characteristic of a painful shallow ulcer at the site of infection. It is more common in African, Asian, and Latin American countries and is rarely seem in the US. | ||
Haemophilus Ducreyi was first described in 1889 by Auguste Ducrey The organism was isolated on artificial media a decade later but has remained difficult to isolate consistently. However novel methods of isolating these bacteria have been developed. It can grow well on a chocolate Agar supplemented with 1% Iso VitaleX and 5% sheep blood. Oxygen and high levels of carbon dioxide are preferable, and it needs to be grown in blood clot tubes in a humid atmosphere. | Haemophilus Ducreyi was first described in 1889 by Auguste Ducrey The organism was isolated on artificial media a decade later but has remained difficult to isolate consistently. However novel methods of isolating these bacteria have been developed. It can grow well on a chocolate Agar supplemented with 1% Iso VitaleX and 5% sheep blood. Oxygen and high levels of carbon dioxide are preferable, and it needs to be grown in blood clot tubes in a humid atmosphere. | ||
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==Genome structure== | ==Genome structure== | ||
This bacterium consists of 1,698,955 base pairs and 1717 genes. It has a circular chromosome. There are 649,349 G+C base pairs, which accounts for 38.22% of the total base pairs. Also, 1,693 open reading frames were identified in this bacterium. Only 5 plasmid profiles have been identified out of 342 strains of Haemophilus ducreyi, however the characteristics of these plasmids are still being studied. | |||
==Cell structure and metabolism== | ==Cell structure and metabolism== | ||
Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces. | Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces. | ||
Revision as of 14:50, 3 May 2007
A Microbial Biorealm page on the genus Haemophilus ducreyi
Classification
Higher order taxa
Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales; Pasteurellaceae; [Others may be used. Use NCBI link to find]
Species
|
NCBI: Taxonomy |
Coccobacillus ducreyi, Bacillus ulceris cancrosi, Haemophilus ducreyi
Description and significance
Haemophilus ducreyi causes the sexually transmitted disease, Chancroid. There has been renewed interest in this bacillus because of the close connections between Chancroid and Human Immunodeficiency Virus (HIV) infections. It typically grows on the male genitalia and characteristic of a painful shallow ulcer at the site of infection. It is more common in African, Asian, and Latin American countries and is rarely seem in the US.
Haemophilus Ducreyi was first described in 1889 by Auguste Ducrey The organism was isolated on artificial media a decade later but has remained difficult to isolate consistently. However novel methods of isolating these bacteria have been developed. It can grow well on a chocolate Agar supplemented with 1% Iso VitaleX and 5% sheep blood. Oxygen and high levels of carbon dioxide are preferable, and it needs to be grown in blood clot tubes in a humid atmosphere.
Genome structure
This bacterium consists of 1,698,955 base pairs and 1717 genes. It has a circular chromosome. There are 649,349 G+C base pairs, which accounts for 38.22% of the total base pairs. Also, 1,693 open reading frames were identified in this bacterium. Only 5 plasmid profiles have been identified out of 342 strains of Haemophilus ducreyi, however the characteristics of these plasmids are still being studied.
Cell structure and metabolism
Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces.
Ecology
Describe any interactions with other organisms (included eukaryotes), contributions to the environment, effect on environment, etc.
Pathology
How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
Application to Biotechnology
Does this organism produce any useful compounds or enzymes? What are they and how are they used?
Current Research
Enter summaries of the most recent research here--at least three required
References
Edited by Anthony Nguyen, student(s) of Rachel Larsen at UCSD.
