Strain number NIES-2665  
Phylum Cyanophyta  
Class Cyanophyceae  
Scientific name Umezakia ovalisporum (Forti) McGregor, Sendall, Niiyama, Tuji & Willis  
Synonym Aphanizomenon ovalisporum Forti 1911; Chrysosporum ovalisporum (Forti) Zapomelová, Skácelová, Pumann, Kopp & Janeček 2013; Umezakia natans M.Watanabe 1987  
Former name Umezakia natans M.Watanabe  
Common name Blue-green alga ; Cyanobacteria  
Locality (Date of collection) Lake Sugako, Wakasa, Fukui, Japan (2008-08-25)  
Latitude / Longitude 35.58099166 / 135.90004722 
Habitat (Isolation source) Freshwater (Water)  
History < Tsuji, Akihiro  
Isolator (Date of isolation) Tsujimura, Shigeo (2008-08-25)  
Identified by Tsujimura, Shigeo  
State of strain Cryopreservation; Unialgal; Clonal; Non-axenic  
Culture condition
(Preculture condition)
Medium:  CT  
Temperature:  20 C
Light intensity:  15-25 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  2 M  
Gene information 16S rRNA ( AB608023 ) , 16S, 16S-IRS-23S ( MT566431 MT566432 )  
Cell size (min - max)  
Organization Branched 
Characteristics Nitrogen fixation  (aerobic condition, Modified BG-110 medium, N-Free medium)  
Other strain no. Other strain no. : TAC611  
Remarks Cryopreserved 
McGregor, G. B., Sendall, B. C., Niiyama, Y., Tuji, A., Willis, A. 2023 Chrysosporum ovalisporum is synonymous with the true-branching cyanobacterium Umezakia natans (Nostocales/Aphanizomenonaceae). J. Phycol., 59, 326-341.
Strain(s): 21262665358541034490 
PubMed: 36680435
DOI: 10.1111/jpy.13317

Asukabe, H., Akahori, S., Ueno, E., Nakayama, T., Yamashita, R., Arii, S., Harada, K., Imanishi, S. Y. 2020 Cyanobacterial classification with the toxicity using MALDI Biotyper. J. Am. Soc. Mass Spectrom., 31, 1572-1578.
Keywords: cyanobacteria; MALDI Biotyper; microcystins; profiling
Strain(s): 27394273818789100101102103104105107111112207208230266298416433478510512515592593604611808809835843846847905928931932945981989102510431058106110641068106910711076108510991101110511131115112611331134113511441157121516421643165216681672167316771678169820872131241226653708373337343736375537563757 
PubMed: 32501712
DOI: 10.1021/jasms.0c00148

Niiyama, Y., Tuji, A., Tsujimura, S. 2011 Umezakia natans M.WATAN. does not belong to Stigonemataceae but to Nostocaceae. Fottea, 11, 163-169.
Keywords: Anabaena bergii; Aphanizomenon ovalisporum; Nostocaceae; Stigonemataceae; Umezakia natans; 16S rDNA
Strain(s): 2665 
DOI: 10.5507/FOT.2011.016

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