Strain Data
Strain number NIES-4280  
Phylum Heterokontophyta  
Class Bacillariophyceae  
Scientific name Mayamaea pseudoterrestris Tuji & H.Yamaguchi  
Synonym  
Former name Navicula pelliculosa (Kützing) Hilse  
Common name Pennate diatom  
Locality (Date of collection) Connecticut, USA  
Latitude / Longitude  
Habitat (Isolation source) Terrestrial  
History < UTEX (2019);  
Isolator (Date of isolation) Lewin, R. A. (1951-**-**)  
Identified by Tuji, Akihiro (Reidentify)  
State of strain Cryopreservation; Unialgal; Clonal; Axenic[2019 June]  
Culture condition
(Preculture condition) 		Medium:  CSi  
Temperature:  20 C
Light intensity:  24 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  1 M  
Gene information Whole-genome ( BROI00000000 ) , 18S rRNA ( LC648451 ) , rbcL ( LC648448 )  
Cell size (min - max)  
Organization Unicellular 
Characteristics Test strain for algal growth inhibition test (OECD TG201) ; Authentic strain (Tuji et al. 2021) ; Type specimen (NIES-50023, Isotype) ; Genome decoded strain (Suzuki et al. 2022)  
Other strain no. Other collection strain no. : UTEX 661
Other strain no. : 22  
Remarks Cryopreserved; Axenic 
Movie  
Related strain information
(Large number of orders and same genus or species)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-2724
 		Mayamaea permitis Pennate diatom   Freshwater (Stone) Test strain for AGP etc. (Ishihara, S. et al. 2006)  
NIES-2725
 		Mayamaea permitis Pennate diatom   Freshwater (Stone) Test strain for AGP etc. (Ishihara, S. et al. 2006)  
NIES-4281
 		Mayamaea terrestris Pennate diatom   Terrestrial Test strain for algal growth inhibition test (OECD TG201)  
Related strain information
(Used in same reference)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-2860
 		Vacuoliviride crystalliferum   Freshwater (Paste) Benthic ; Authentic strain (Nakayama et al. 2015)  
NIES-715
 		Cryptomonas paramaecium   Freshwater (Bog water) Heterotrophic ; Osmotrophic ; Genome decoded strain (Suzuki et al. 2022)  
NIES-277
 		Cryptomonas rostratiformis   Freshwater (Pond water)  
NIES-276
 		Cryptomonas borealis   Freshwater (Pond water) Genome decoded strain (Suzuki et al. 2022)  
NIES-2635
 		Paulinella chromatophora   Freshwater (Pond water) Symbiotic ; Benthic  
Reference
Tuji, A., Suzuki, S., Yamagishi, T., Yamaguchi, H. 2021 Alternative diatom strains for growth inhibition tests (OECD Test Guideline 201). Bull. Natl. Mus. Nat. Sci., Ser. B, 47, 183–192.
Keywords: Fistulifera; Mayamaea permitis; Mayamaea pseudoterrestris sp., nov.; Mayamaea terrestris; Navicula pelliculosa; UTEX 664
Strain(s): 4280,  4281 
DOI: 10.50826/bnmnsbot.47.4_183

Suzuki, S., Ota, S., Yamagishi, T., Tuji, A., Yamaguchi, H., Kawachi, M. 2022 Rapid transcriptomic and physiological changes in the freshwater pennate diatom Mayamaea pseudoterrestris in response to copper exposure. DNA Res., 29, dsac037 (article ID).
Keywords: Mayamaea pseudoterrestris; ecotoxicological test; metal toxicity; gliding motility; oxidative stress
Strain(s): 4280 
PubMed: 36197113
DOI: 10.1093/dnares/dsac037

Hamana, K., Furuchi, T., Hayashi, H., Niitsu, M. 2022 Additional polyamine analysis of algal chlorarachniophytes, euglenophytes, haptophytes, cryptophytes, dinoflagellates, chromerids and heterokontophytes. —Polyamine analysis of algae IV— Microb. Resour. Syst., 38, 51-62.
Keywords: alga; chlorarachniophyte; chromerid; dinoflagellate; polyamine
Strain(s): 12,  47,  48,  253,  274,  276,  277,  282,  286,  304,  331,  381,  387,  463,  623,  624,  699,  706,  715,  741,  1443,  2145,  2146,  2149,  2351,  2433,  2535,  2584,  2588,  2635,  2677,  2716,  2728,  2860,  3576,  3745,  4060,  4109,  4280,  4391,  4392 
DOI: 10.60369/microresys.38.2_51

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