| Pirum gemmata | |
|---|---|
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| Pirum gemmata (Ichthyosporea), nuclei stained in blue with DAPI | |
Scientific classification 
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| Domain: | Eukaryota |
| Class: | Ichthyosporea |
| Order: | Ichthyophonida |
| Family: | Piridae |
| Genus: | Pirum Marshall & Berbee 2011 |
| Species: | P. gemmata
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| Binomial name | |
| Pirum gemmata Marshall & Berbee 2011
| |
Pirum gemmata is a unicellular eukaryote that belongs to the Ichthyosporea clade, a group of protists closely related to animals. P. gemmata was isolated from the gut contents of a marine invertebrate, specifically the detritivorous peanut worm Phascolosoma agassizii.[1]
Pirum gemmata’s growth under culture conditions, is through the development of a mature syncytial stage that undergoes sporogenesis and eventually releases endospores through one or more openings in the parent cell wall. Mature cells are multinucleated, with a cell wall, and can measure up to 200 μm.[1] Endospores are amoeboid and some have pseudopod-like cell extensions.
- ^ a b Marshall, Wyth L.; Berbee, Mary L. (2011-01-01). "Facing Unknowns: Living Cultures (Pirum gemmata gen. nov., sp. nov., and Abeoforma whisleri, gen. nov., sp. nov.) from Invertebrate Digestive Tracts Represent an Undescribed Clade within the Unicellular Opisthokont Lineage Ichthyosporea (Mesomycetozoea)". Protist. 162 (1): 33–57. doi:10.1016/j.protis.2010.06.002. PMID 20708961.