''Babesiosoma'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of parasitic
alveolates
The alveolates (meaning "pitted like a honeycomb") are a group of protists, considered a major clade and superphylum within Eukarya. They are currently grouped with the stramenopiles and Rhizaria among the protists with tubulocristate mitochond ...
in the
phylum Apicomplexia
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. ...
.
They have two hosts in their life cycle: the
vertebrate
Vertebrates () comprise all animal taxa within the subphylum Vertebrata () (chordates with backbones), including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, with c ...
hosts are
fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of ...
and the invertebrate vectors are
leeches.
This genus has been poorly studied and little is known about it.
History
The genus was created in 1956 by Jakowski and Nigrelli.
[Jakowska S, Nigrelli RF (1956)Some protozoan diseases of man and animals: Anaplasmosis, Babesiosis, and Toxoplasmosis. Annal NY Acad Sci 64, 112–127]
Seven species have been recognised in this genus.
[Misra KK, Haldar DP, Chakravarty MM (1969) ''Babesiosoma ophicephali'' n. sp. from the freshwater teleost ''Ophicephalus punctatus'' Bloch. J Protozool 16(3):446-449][Negm-Eldin MM (1998) Life cycle, host restriction and longevity of ''Babesiosoma mariae'' HOARE, 1930 (Apicomplexa: Dactylosomatidae). Dtsch Tierarztl Wochenschr 105(10):367-374][Smit NJ, Van As JG, Davies AJ (2003) Observations on ''Babesiosoma mariae'' (Apicomplexa: Dactylosomatidae) from the Okavango Delta, Botswana. Folia Parasitol (Praha) 50(1):85-86]
Meront
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is ...
s: These develop in
erythrocyte
Red blood cells (RBCs), also referred to as red cells, red blood corpuscles (in humans or other animals not having nucleus in red blood cells), haematids, erythroid cells or erythrocytes (from Greek ''erythros'' for "red" and ''kytos'' for "holl ...
s and divide to produce four small
merozoite
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is ...
s, characteristically in a cruciform or
rosette arrangement.
Gametocyte
A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametids during gametogenesis. Male gametocytes are called ''spermatocytes'', and female gametocytes are called ''oocytes''.
Development
...
s: These are larger and more elongated than the meronts and are generally club-shaped.
References
Apicomplexa genera
{{Apicomplexa-stub