| SAG Strain Number: | 21.99 |
| TAXONOMY |
| Genus: | Arthrospira |
| Species: | platensis |
| Taxonomic position: | Cyanobacteria |
| Authority: | (Nordstedt) Gomont |
| Variety: | |
| Formerly called: | Spirulina platensis (Nordstedt) Geitler |
| Authentic: | no |
| Division: | Cyanobacteria |
| Class: | Cyanophyceae |
| ORIGIN |
| General habitat: | brackish |
| Climatic zone: | |
| Continent: | Africa |
| Country: | Namibia |
| Locality: | Walfishbay, Lagune |
| Lat. / Long. (Precision): | -22.967245 / 14.487677 (15000m) View on Google Maps |
| Year: | March 1999 |
| Isolated by: | E. Hegewald & S.L. Jeon |
| Strain number by isolator: | Jeon 1999-16 |
| Deposition by: | E. Hegewald |
| Deposition date: | 01.10.1999 |
| CULTURE INFORMATION |
| Culture medium: | Spirul |
| Axenic: | bacterial or other types of contamination |
| Strain relatives: | |
| Agitation resistance: | not detected |
| Special properties: | |
| |
| PUBLICATIONS |
| Publication: | Binkanat T.B. et al. (2026) Effects of cultivation temperature on protein production of selected Spirulina strains under photobioreactor conditions. Algal Res. 93:104489 |
| Publication: | Bai F. et al. (2025) Towards a circular food system: Biomass profile, antioxidant properties, and cytotoxicity of marine and freshwater microalgae cultivated on digestate. Algal Res. 92:104402 |
| Publication: | Barati B. et al. (2025) Unlocking the potential of brewery wastewater: Sustainable cultivation of Arthrospira platensis for biomass and phycocyanin production. J. Water Process Engin. 70:107107 |
| Publication: | Pispas K. et al. (2024) Optimizing Phycocyanin Extraction from Cyanobacterial Biomass: A Comparative Study of Freeze–Thaw Cycling with Various Solvents. Mar. Drugs 22 (6):246 |
| Publication: | Hulst M. et al. (2019) Transcriptional response of cultured porcine intestinal epithelial cells to micro algae extracts in the presence and absence of enterotoxigenic Escherichia coli. Genes Nutr. 14 (8) |
| Publication: | Nowicka-Krawczyk P. et al. (2019) Detailed characterization of the Arthrospira type species separating commercially grown taxa into the new genus Limnospira (Cyanobacteria). Sci. Rep. 9:694 |
| Publication: | Markou, Giorgos et al. (2016) Applying raw poultry litter leachate for the cultivation of Arthrospira platensis and Chlorella vulgaris. Algal Res. 13:79-84 |
| Publication: | Mudimu O. et al. (2014) Biotechnological screening of microalgal and cyanobacterial strains for biogas production and antibacterial and antifungal effects. Metabolites 4 (2):373-393 |
| Publication: | Markou, G. (2012) Alteration of the biomass composition of Arthrospira (Spirulina) platensis under various amounts of limited phosphorus. Bioresource Technology 116:533–535 |
| Publication: | Markou, G. et al. (2012) Carbohydrates Production and Bio-flocculation Characteristics in Cultures of Arthrospira (Spirulina) platensis: Improvements Through Phosphorus Limitation Process . Bioenerg. Res. |
| Publication: | Markou, G. et al. (2012) Cultivation of Arthrospira (Spirulina) platensis in olive-oil mill wastewater treated with sodium hypochlorite. Bioresource Technology 112:234–241 |
| Publication: | Markou, G. et al. (2012) Effects of phosphorus concentration and light intensity on the biomass composition of Arthrospira (Spirulina) platensis. World J Microbiol Biotechnol |
| Publication: | Ronda, S.R. et al. (2012) Aeration effect on Spirulina platensis growth and γ-linolenic acid production. Braz. J. Microbiol. 43 (1):12-20 |
| Publication: | Choi, G.-G. et al. (2008) Induction of axenic culture of Arthrospira (Spirulina) platensis based on antibiotic sensitivity of contaminating bacteria. Biotechnology Letters 30 (1):87-92 |
| Publication: | Nelissen, B. et al. (1994) Phylogenetic relationships among filamentous helical cyanobacteria investigated on the basis of 16S ribosomal RNA gene sequence analysis. Systematic and Applied Microbiology 17:206-211 |
| Publication: | Guglielmi, G. et al. (1993) Main properties that justify the different taxonomic position of Spirulina spp. and Arthrospira spp. among cyanobacteria. Bull Inst Oceanogr Monaco 12:13-23 |
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| SEQUENCE INFORMATION |
| Sequence Accession: | MF509183 Arthrospira platensis SAG 21.99 16S-23S ribosomal RNA intergenic spacer, partial sequence. (456 bp) |
| Sequence Accession: | MF509131 Arthrospira platensis SAG 21.99 c-phycocyanin subunit AH intergenic spacer, partial sequence. (184 bp) |
| Sequence Accession: | MF509111 Arthrospira platensis SAG 21.99 c-phycocyanin subunit BA intergenic spacer, partial sequence. (111 bp) |
| Sequence Accession: | MF509084 Arthrospira platensis SAG 21.99 gas vesicle structural protein (gvpA3) gene, partial cds. (216 bp) |
| Sequence Accession: | MF509073 Arthrospira platensis SAG 21.99 gas vesicle structural protein (gvpC) gene, partial cds. (852 bp) |
| Sequence Accession: | MF509035 Arthrospira platensis SAG 21.99 kaiBA intergenic spacer, partial sequence. (369 bp) |
| Sequence Accession: | MF509003 Arthrospira platensis SAG 21.99 kaiCB intergenic spacer, partial sequence. (96 bp) |
| Sequence Accession: | MG777422 Arthrospira platensis SAG 21.99 C-phycocyanin beta subunit (cpcB) gene, complete cds. (258 bp) |
| Sequence Accession: | MG777390 Arthrospira platensis SAG 21.99 RNA polymerase subunit gamma (rpoC1) gene, partial cds. (699 bp) |
| Sequence Accession: | MG777359 Arthrospira platensis SAG 21.99 recombinase subunit A (recA) gene, complete cds. (723 bp) |
| Sequence Accession: | MG777306 Arthrospira platensis SAG 21.99 circadian clock protein KaiB (kaiB) gene, complete cds. (315 bp) |
| Sequence Accession: | MG777279 Arthrospira platensis SAG 21.99 circadian clock protein KaiA (kaiA) gene, complete cds. (543 bp) |
| Sequence Accession: | MG777248 Arthrospira platensis SAG 21.99 DNA gyrase subunit A (gyrA) gene, complete cds. (627 bp) |
| Sequence Accession: | MG777221 Arthrospira platensis SAG 21.99 gas vesicle protein C (gvpC3) gene, complete cds. (855 bp) |
| Sequence Accession: | MG777195 Arthrospira platensis SAG 21.99 gas vesicle protein A (gvpA3) gene, complete cds. (219 bp) |
| Sequence Accession: | MG777182 Arthrospira platensis SAG 21.99 C-phycocyanin linker protein (cpcH) gene, complete cds. (507 bp) |
| Sequence Accession: | MG777148 Arthrospira platensis SAG 21.99 C-phycocyanin alpha subunit (cpcA) gene, complete cds. (489 bp) |
| Sequence Accession: | MG777126 Arthrospira platensis SAG 21.99 16S ribosomal RNA gene, partial sequence. (1125 bp) |
| Sequence Accession: | KM019966 Arthrospira platensis SAG 21.99 16S ribosomal RNA gene, partial sequence. (1461 bp) |
| Sequence Accession: | DQ393293 Arthrospira platensis strain SAG 21.99 CpcB (cpcB) and CpcA (cpcA) genes, partial cds. (403 bp) |
| Sequence Accession: | DQ393283 Arthrospira platensis strain SAG 21.99 16S ribosomal RNA gene, partial sequence. (1453 bp) |
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| CRYO |
| Cryopreservation: | not detected |
| TEACHING |
| Recommended for teaching: | yes |
