A big image opens when the thumbnail is clicked.(nies-0550.jpg)
Strain number NIES-550  
Phylum Rhodophyta  
Class Cyanidiophyceae  
Scientific name Galdieria sulphuraria (Galdieri) Merola  
Synonym Pleurococcus sulphurarius Galdieri; Cyanidium sulphurarium (Galdieri) F.D.Ott 1994  
Former name  
Common name Red alga  
Locality (Date of collection)  
Latitude / Longitude  
Habitat (Isolation source)  
History < Kuroiwa, Tsuneyoshi  
Isolator (Date of isolation)  
Identified by Merola, A. et al.  
State of strain Subculture; Unialgal; Non-clonal; Axenic[2013 Nov]  
Culture condition
(Preculture condition)
Medium:  M-Allen  
Temperature:  37 C
Light intensity:  9-10 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  6 M  
Gene information 18S rRNA ( LC504058 )  
Cell size (min - max) - 9 μm  
Organization Unicellular 
Characteristics Acidophilic ; Authentic strain (Merola et al. 1981)  
Other strain no. Other strain no. : 002  
Remarks Axenic 
Hamana, K., Furuchi, T., Hayashi, H., Uemura, T., Niitsu, M. 2023 Additional polyamine analysis of the algae belonging to the phyla Glaucophyta, Rhodophyta and Chlorophyta. ─Polyamine analysis of algae V─ Microb. Resour. Syst., 39, 33-40.
Keywords: alga; Chlorophyta; Glaucophyta; polyamine; Rhodophyta
Strain(s): 22625025455055162612981332170318362137216321642165216622522353289433773645386738913892410743904452 

Hirooka, S., Itabashi, T., Ichinose, T. M., Onuma, R., Fujiwara, T., Yamashita, S., Jong, L. W., Tomita, R., Iwane, A. H., Miyagishima, S. 2022 Life cycle and functional genomics of the unicellular red alga Galdieria for elucidating algal and plant evolution and industrial use. Proc. Natl. Acad. Sci. U. S. A., 119, e2210665119 (article ID).
Keywords: Galdieria; sexual reproduction; homeobox; actin; microalgae
Strain(s): 550 
PubMed: 36194630
DOI: 10.1073/pnas.2210665119

Merola, A., Castaldo, R., De Luca, P., Gambardella, R., Musacchio, A., Taddei, R. 1981 Revision of Cyanidium caldarium. Three species of acidophilic algae. Giorn Bot. Ital., 115, 189-195.
Strain(s): 550 
DOI: 10.1080/11263508109428026

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