Strain number NIES-4274  
Phylum Dinophyta  
Class Dinophyceae  
Scientific name Alexandrium ostenfeldii (Paulsen) Balech & Tangen  
Former name  
Common name Dinoflagellate  
Locality (Date of collection) Lake Koyama, Tottori, Tottori, Japan (2016-11-29)  
Latitude / Longitude 35.49880 / 134.15563 
Habitat (Isolation source) Brackish water (Lake water)  
History < Tottori Prefectural Institute of Public Health and Environmental Science  
Isolator (Date of isolation) Okamoto, Masaki (2016-11-30)  
Identified by Okamoto, Masaki  
State of strain Subculture; Unialgal; Clonal; Non-axenic  
Culture condition
(Preculture condition)
Medium:  BESM  
Temperature:  15 C
Light intensity:  15 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  45 D  
Gene information  
Cell size (min - max) 20 - 40 μm  
Organization Unicellular; Flagellate 
Characteristics Red tide ; Resting spore-forming  
Other strain no. Other strain no. : A  
Remarks Fragile species to transportation stresses; Read and agree "How to order 4.1" 
Park, S. A., Jeong, H., J., Ok, J. H., Kang, H. C., You, J. H., Eom, S. H., Yoo, Y. D., Lee, M. J. 2021 Bioluminescence capability and intensity in the dinoflagellate Alexandrium species. Algae, 36, 299-314.
Keywords: harmful algal bloom; luciferase gene; luminescence; protist; red tide
Strain(s): 36114274 
DOI: 10.4490/algae.2021.36.12.6

Okamoto, M., Mori, A., Maeda, A., Sakamoto, S., Yamaguchi, M. 2019 Effects of temperature and salinity on the growth of toxic dinoflagellate Alexandrium ostenfeldii (Dinophyceae). Bull. Tottori Pre. Environ. Sanitation Res. Center, 58, 11-16 (in Japanese with English summary).
Strain(s): 4274 

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