Strain number NIES-691  
Phylum Chlorophyta  
Class Chlorophyceae  
Scientific name Tetrabaena socialis (Dujardin) Nozaki & Ito  
Synonym Cryptomonas socialis Dujardin; Gonium sociale (Dujardin) Warming 1876; Tetrabaena dujardinii E.Fromentel 1874; Tetragonium lacustre West & G.S.West 1896  
Former name  
Common name Green alga  
Locality (Date of collection) King George Isl. Antarctica (1990-12-**)  
Latitude / Longitude  
Habitat (Isolation source) Snow  
History < Nozaki, Hisayoshi  
Isolator (Date of isolation) Ohtani, Shuji (1990-12-**)  
Identified by Nozaki, Hisayoshi  
State of strain Subculture; Unialgal; Clonal; Axenic[2017 Nov]  
Culture condition
(Preculture condition)
Medium:  AF-6  
Temperature:  10 C
Light intensity:  6-8 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  4 M  
Gene information ITS1-5.6S-ITS2 ( U66978 )  
Cell size (min - max) 8 - 20 μm  
Organization  
Characteristics Phototaxis ; Cryophilic  
Other strain no. Other strain no. : KG-4-8th  
Remarks Axenic 
Movie  
Reference
Zhang, Z., Qu, C., Yao, R., Nie, Y., Xu, C., Miao, J., Zhong, B. 2019 The parallel molecular adaptations to the Antarctic cold environment in two psychrophilic green algae. Genome Biol. Evol., 11, 1897-1908.
Keywords: Antarctic; psychrophilic green algae; positive selection, molecular convergence; adaptation
Strain(s): 691 
PubMed: 31106822
DOI: 10.1093/gbe/evz104

Hamana, K., Kobayashi, M., Furuchi, T., Hayashi, H., Niitsu, M. 2018 Polyamine analysis of unicellular, colonial, and multicellular green algae —Detection of aminobutylcadaverine, N1-aminopentylspermidine, N8-aminopentylspermidine, and penta-amines.— Microb. Resour. Syst., 34, 73-82.
Keywords: aminobutylcadaverine; aminopentylspermidine; green alga; penta-amine; polyamine; thermospermine
Strain(s): 1835242691735127112782185218722352261254025723983 

Mori, F., Erata, M., Watanabe, M. M. 2002 Cryopreservation of cyanobacteria and green algae in the NIES-Collection. Microbiol. Cult. Coll., 18, 45-55.
Keywords: cryopreservation; cyanobacteria; green algae; FDA staining method; NIES-Collection
Strain(s): 19212223242526272829303132333435363738394041444546505152535455565758596061626364656667686970737475767778798081878990919293949596979899100101102103104105106107108109110111112119120122123124125127128129130131132133134135137138139144147148150151152153154155156157158159160162163164165166167168169170171172173174175176177178179180181182183185186187188189191192193194195197198199200201202203204205206207208209210211212213214215216217224226227228229230231232241242243244245246248257259261262263266267268271287288289290294295297298299300301302303305306308309310311312313329334336337338339340341342349351359360361362375378379380382384385390394396397398415416418419421422423424425426427428429430431432433434436437438439440446447448449450451452453454455456457458459460464468469474478479480481503504505506507509510512514515522523524527528529530531532536537538539540541542543544545546564565566567568569570571572573574575576577578579580581582583584585592593594595596597598604610628630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667672685686687688689690691692693694717718719720721722723724725726727728729 

Mai, J. C., Coleman, A. W. 1997 The internal transcribed spacer 2 exhibits a common secondary structure in green algae and flowering plants. J. Mol. Evol., 44, 258-271.
Keywords: Angiosperms; Chlamydomonas; Ribosomal RNA; RNA secondary structure; Transcribed spacer
Strain(s): 691 
DOI: 10.1007/PL00006143

Nozaki, H., Ohtani, S. 1992 Gonium sociale (Volvocales, Chlorophyta) from Antarctica. Jpn. J. Phycol., 40, 267-271.
Keywords: Antarctica; Chlorophyta; culture; Gonium sociale; morphology; Volvocales
Strain(s): 571691 

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