| SAG Strain Number: | 933-1a |
| TAXONOMY |
| Genus: | Poterioochromonas |
| Species: | malhamensis |
| Taxonomic position: | Heterokontophyta - Chrysophyceae |
| Authority: | (Pringsheim) Péterfi |
| Variety: | |
| Formerly called: | authentic strain of Ochromonas malhamensis Pringsheim |
| Authentic: | yes |
| Division: | Heterokontophyta |
| Class: | Chrysophyceae |
| ORIGIN |
| General habitat: | freshwater |
| Climatic zone: | temperate |
| Continent: | Europe |
| Country: | United Kingdom |
| Locality: | Yorkshire, Malham Tarn, stone from Mountain Lake |
| Lat. / Long. (Precision): | 54.097054 / -2.170072 (1000m) View on Google Maps |
| Year: | 1948 |
| Isolated by: | T.Y. Chen |
| Strain number by isolator: | |
| Deposition by: | E.G. Pringsheim (SAG) |
| Deposition date: | 1954 |
| CULTURE INFORMATION |
| Culture medium: | Ochr |
| Axenic: | axenic |
| Strain relatives: | CCAP 933/1A; UTEX 1297; ATCC 11532 |
| Agitation resistance: | not detected |
| Special properties: | NO known Nagoya Protocol restrictions for this strain; test organism for vitamin B12 |
| |
| PUBLICATIONS |
| Publication: | Jeong M. et al. (2025) Taxonomy of the genus Poterioochromonas (Chrysophyceae) based on morphological and molecular evidence. J. Phycol. 61 (3):607-622 |
| Publication: | Andersen R.A. et al. (2017) Rediscovery of the Ochromonas type species Ochromonas triangulata (Chrysophyceae) from its type locality (Lake Veysove, Donetsk region, Ukraine. Phycologia 56 (6):591-604 |
| Publication: | Schnepf, E. et al. (1977) The flagellar root apparatus, the microtubular system and associated organelles in the chrysophycean flagellate, Poterioochromonas malhamensis Peterfi (syn. Poteriochromonas stipitata Scherffel and Ochromonas malhamensis Pringsheim). Protoplasma 92 (1-2):87-107 |
| Publication: | Jüttner F. et al. (1974) Excretion products of Ochromonas with special reference to pyrrolidone carboxylic acid. Arch. Microbiol. 96:223-232 |
| Publication: | Tsekos, I. (1972) Die Feinstruktur kristalloider Einschlüsse in Mitochondrien yon Porterioochromonas stipitata. Arch. Mikrobiol. 85 (2):138-141 |
| Publication: | Schnepf E. et al. (1968) Über das Vorkommen und den Bau gestielter “Hüllen” bei Ochromonas malhamensis Pringsheim O. sociabilis nom. prov. Pringsheim. Arch. Mikrobiol. 63 (1):15-25 |
| Publication: | Pringsheim E.G. (1952) On the nutrition of Ochromonas. Quart. J. Microsc. Sci. 93:71-96 |
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| SEQUENCE INFORMATION |
| Sequence Accession: | MH643685 Poterioochromonas malhamensis strain SAG933-1a ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit gene, partial cds; chloroplast. (796 bp) |
| Sequence Accession: | MH536656 Poterioochromonas malhamensis strain SAG933-1a small subunit ribosomal RNA gene, partial sequence; internal transcribed spacer 1 and 5.8S ribosomal RNA gene, complete sequence; and internal transcribed spacer 2, partial sequence. (2518 bp) |
| CRYO |
| Cryopreservation: | not detected |
| TEACHING |
| Recommended for teaching: | no |
