Anaplasma
Encyclopedia
Anaplasma is a genus of rickettsiales
Rickettsiales
The Rickettsiales, also called rickettsias, are an order of small proteobacteria. Most of those described survive only as endosymbionts of other cells. Some are notable pathogens, including Rickettsia, which causes a variety of diseases in humans...

 bacteria
Bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...

.

Anaplasmas reside in host red blood cells and lead to the disease anaplasmosis
Anaplasmosis
Anaplasmosis is a disease caused by a rickettsial parasite of ruminants, Anaplasma spp. The organism occurs in the white blood cells and is transmitted by natural means through a number of haematophagous species of ticks...

. The disease most commonly occurs in tropical areas of the world.
Anaplasmas require intermediate tick
Tick
Ticks are small arachnids in the order Ixodida, along with mites, constitute the subclass Acarina. Ticks are ectoparasites , living by hematophagy on the blood of mammals, birds, and sometimes reptiles and amphibians...

 hosts for maturation, and flies may act as mechanical vectors.

The major consequence of infection is the development of haemolytic anaemia due to the damage done to red blood cells.

Species of veterinary interest include:
  • Anaplasma marginale and Anaplasma centrale in cattle
  • Anaplasma mesaeterum and Anaplasma ovis in sheep and goats

External links

  • Anaplasma Genome Projects (from Genomes OnLine Database)
  • Comparative Analysis of Anaplasma Genomes (at DOE's
    United States Department of Energy
    The United States Department of Energy is a Cabinet-level department of the United States government concerned with the United States' policies regarding energy and safety in handling nuclear material...

     IMG system
    Integrated Microbial Genomes System
    The Integrated Microbial Genomes is a genome browsing and annotation system developed by the DOE-Joint Genome Institute. IMG contains all the draft and complete microbial genomes sequenced by the DOE-JGI integrated with other publicly available genomes...

    )
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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