Opalina
| Opalina | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Bigyra |
| Class: | Opalinea |
| Order: | Opalinida |
| Family: | Opalinidae |
| Genus: | Opalina Purkinye & Valentin, 1835 |
Opalina is a
plasmotomy
. The body is flattened, leaf-like and oval in outline and covered by thin pellicle. Nutrition is by pinocytosis. There are several small, spherical and similar sized nuclei present in the endoplasm. The nuclei are evenly distributed. The animal reproduces by longitudinal and transverse binary fission, or by plasmotomy in which the cell division is repeated again and again without division of nuclei. The daughter cells encysted and pass out in the faecal matter of the host.
An example of a species is Opalina ranarum.[2]
References
- ^ One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Opalina". Encyclopædia Britannica. Vol. 20 (11th ed.). Cambridge University Press. p. 121.
- PMID 17113476.
