Strain number NIES-2137  
Phylum Rhodophyta  
Class Cyanidiophyceae  
Scientific name Cyanidium caldarium (Tilden) Geitler  
Synonym  
Former name  
Common name Red alga  
Locality (Date of collection) Nikko-Yumoto Hot spring Nikko Tochigi Japan  
Latitude / Longitude  
Habitat (Isolation source) Hot spring  
History < IAM (2007) < Nagashima, Hideyuki (1991)  
Isolator (Date of isolation) Fukuda, I. (1958-**-**)  
Identified by Fukushima, Hiroshi; Nagashima, Hideyuki  
State of strain Subculture; Unialgal; Clonal; Axenic[2018 Jan]  
Culture condition
(Preculture condition)
Medium:  M-Allen  
Temperature:  37 C
Light intensity:  5-9 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  5 M  
Gene information  
Cell size (min - max) 2 - 4 μm  
Organization Unicellular 
Characteristics  
Other strain no. Other collection strain no. : IAM R-11
Other strain no. : RK-1  
Remarks Axenic 
Movie  
Reference
Takaichi, S., Yokoyama, A., Mochimaru, M., Uchida, H., Murakami, A. 2016 Carotenogenesis diversification in phylogenetic lineages of Rhodophyta. J. Phycol., 52, 329-338.
Keywords: alloxanthin; antheraxanthin; carotenogenesis; carotenoid; Cryptophyta; Glaucophyta; lutein; red algae; Rhodophyta; Zeaxanthin
Strain(s): 697700705133221372138 
PubMed: 27273528
DOI: 10.1111/jpy.12411

Mikulic, P., Beardall, J. 2014 Contrasting ecotoxicity effects of zinc on growth and photosynthesis in a neutrophilic alga (Chlamydomonas reinhardtii) and an extremophilic alga (Cyanidium caldarium). Chemosphere, 112, 402-411.
Keywords: Photosynthesis; Algae; Zinc; Extremophile; Neutrophile; Acclimation
Strain(s): 2137 
PubMed: 25048933
DOI: 10.1016/j.chemosphere.2014.04.049

Ohta, N., Nagashima, H., Kawano, S., Kuroiwa, T. 1992 Isolation of the chloroplast DNA and the sequence of the trnK gene from Cyanidium caldarium strain RK-1. Plant Cell Physiol., 33, 657-661.
Keywords: chloroplast DNA; Cyanidium caldarium; transfer RNA-lysine
Strain(s): 2502137 
DOI: 10.1093/oxfordjournals.pcp.a078302

Hamana, K., Matsuzaki, S., Niitsu, M., Samejima, K., Nagashima, H. 1990 Polyamines of unicellular thermoacidophilic red alga Cyanidium caldarium. Phytochemistry, 29, 377-380.
Keywords: Cyanidium caldarium; Rhodophyta; red algae; polyamines; chemotaxonomy
Strain(s): 25021373891 
DOI: 10.1016/0031-9422(90)85082-Q

Nagashima, H., Fukuda, I. 1983 Floridosides in unicellular hot spring algae. Phytochemistry, 22, 1949-1951.
Keywords: Cyanidium caldarium; Chroococcidiopsis sp.; hot spring algae; chemotaxonomy; low MW carbohydrates; floridoside; iso-floridoside; autotroph; heterotroph
Strain(s): 25021373891 
DOI: 10.1016/0031-9422(83)80020-X

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