Strain number NIES-2341  
Phylum Chlorophyta  
Class Chlorophyceae  
Scientific name Mychonastes homosphaera (Skuja) Kalina & Puncochárová  
Synonym Chlorella homosphaera Skuja; Palmellococcus homosphaera (Skuja) S.Handa & T.Nakano 1988; Chlorella minutissima Fott & Nováková 1969  
Former name Mychonastes sp.  
Common name Green alga  
Locality (Date of collection) Lake Tateshina, Nagano, Japan (1991-05-09)  
Latitude / Longitude  
Habitat (Isolation source) Freshwater (Lake water)  
History < Takamura, Noriko  
Isolator (Date of isolation) Takamura, Noriko (1991-07-**)  
Identified by Nozaki, Hisayoshi  
State of strain Cryopreservation; Unialgal; Clonal; Axenic[2018 Feb]  
Culture condition
(Preculture condition)
Medium:  CB  
Temperature:  15 C
Light intensity:  19 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  3 M  
Gene information 18S rRNA ( AB488568 ) , 18S-ITS1-5.8S-ITS2-28S ( LC853071 ) , rbcL ( LC853338 ) , atpB ( LC853353 ) , psaB ( LC853368 ) , psbC ( LC853383 )  
Cell size (min - max)  
Organization Unicellular 
Characteristics  
Other strain no. Other strain no. : TATE 1  
Remarks Cryopreserved; Axenic 
Movie  
Related strain information
(Large number of orders and same genus or species)
Related strain information
(Whose relevance due to simultaneous purchases and other information is inferred by AI)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-2900
Mychonastes ariiae Green alga   Freshwater (River water) Authentic株 (Nozaki et al. 2025) ; Type specimen (NIES-50029, Holotype)  
NIES-3742
Mychonastes pushpae Green alga   Freshwater (Lake water)  
Related strain information
(Used in same reference)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-1435
Unidentified coccoid prasinophyte   Marine (Seawater)  
NIES-2855
Tetraselmis sp.   Marine (Seawater) Planktonic  
NIES-329
Klebsormidium sp.   Freshwater (Lake water)  
NIES-417
Asterionellopsis glacialis Pennate diatom   Marine (Seawater) Not growing under axenic condition  
NIES-4547
Mychonastes pushpae Green alga   Freshwater (Reservoir water)  
Reference
Fukuda, S., Iwamoto, K., Atsumi, M., Yokoyama, A., Nakayama, T., Ishida, K-I., Inouye, I., Shiraiwa, Y. 2014 Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy. J. Plant Res., 127, 79-89.
Keywords: Algal phytoremediation; Bioaccumulation; Radiopollution; Radionuclide elimination; Radioactive cesium; The Fukushima 1 Nuclear Power Plant accident
Strain(s): 24367115516020323324632933339140541744048750352953153854855358759767872780584385993199510031012101510171031104410451259132613311377138213881411143514391440144114421458172818261831183318401846186218651956213121442146214721502175217621852268232523412352237724122437285428552856285828592860 
PubMed: 24346654
DOI: 10.1007/s10265-013-0596-9

Nozaki, H., Matsuzaki, R., Mori, F., Sato, M., Yamaguchi, H., Higashiyama, T., Kawachi, M., Tanabe, Y. 2025 Description of four new species of Mychonastes (Chlorophyceae) from Japanese freshwater habitats based on molecular and morphological data. Phycol. Res., 73, 35-48.
Keywords: freshwater green alga; molecular phylogeny; morphology; Mychonastes; Mychonastes ariiae sp. nov.; Mychonastes gigas sp. nov.; Mychonastes kasaiae sp. nov.; Mychonastes takamurae sp. nov.; species; taxonomy
Strain(s): 233423362339234023412897290037423743454645474569 
DOI: 10.1111/pre.12573

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