Plasmodiidae
Plasmodiidae
The Plasmodiidae are a family of apicomplexan parasites, including the type genus Plasmodium, which is responsible for malaria. They are given their own order - the Haemosporida.
Diagnostic criteria
The diagnostic criteria of this family are:
- macrogametes and microgamonts develop independently
- syzygy absent
- microgametocyte produces 8 flagellated microgametes
- zygote is motile (known as an ookinete)
- conoid present in ookinete stage only
- sporozoites naked in oocyst (that is without a sporocyst)
- heteroxenous: merogony and gamogony occur in vertebrate host and fertilization and sporogony in definitive host (a blood sucking insect)
- hemozoin pigment produced in some genera
Related genera
Currently there are a number of genera recognised in this family. Like many of the protist groupings these may be significantly revised in light of findings from the DNA sequences. While more complete listings of the vertebrate host species can be found on the genus pages, typical hosts are given here.
Biguetiella - bats Billbraya Bioccala - bats Dionisia - bats Haemoproteus - birds Hepatocystis - bats, monkeys, hippopotamus, squirrels Leukocytozoon - birds Mesnilium - fish Nycteria - bats Plasmodium - mammals, birds and reptiles Polchromophilus - bats Rayella - flying squirrels Saurocytozoon - reptiles
Related species
Families:
''Lankesterellidae
Genera:
The hameogregarines: Cyrilia Desseria Hepatozoon Hemogregarina Hemolivia Karyolysus
Others: Chelonplasma Pirhemocyton Sauroplasma Serpentoplasma
References
This article is licensed under the GNU Free Documentation License.
Last updated on Saturday August 30, 2008 at 16:48:49 PDT (GMT -0700)
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