Strain number NIES-70  
Phylum Streptophyta  
Class Zygnematophyceae  
Scientific name Closterium peracerosum-strigosum-littorale complex  
Synonym  
Former name  
Common name Desmid  
Locality (Date of collection) Lake Teganuma, Abiko, Chiba, Japan (1974-06-**)  
Latitude / Longitude 35.8581459719 / 140.031447988 
Habitat (Isolation source) Freshwater  
History < Watanabe, Makoto M.  
Isolator (Date of isolation) Watanabe, Makoto M. (1974-06-**)  
Identified by Watanabe, Makoto M.  
State of strain Subculture; Unialgal; Clonal; Axenic[2017 Dec]  
Culture condition
(Preculture condition)
Medium:  C  
Temperature:  15 (20) C
Light intensity:  7 (10-17) µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  3 M (21 D)  
Gene information 18S rRNA ( AB363689 ) , 5.8S-ITS2-28S ( AB625547 )  
Cell size (min - max)  
Organization Unicellular 
Characteristics Heterothallic: Mating type (−) ; Mating group II B  
Other strain no. Other strain no. : TG-2-22  
Remarks Axenic 
Movie  
Reference
Tsuchikane, Y., Tsuchiya, M., Hindák, F., Nozaki, H., Sekimoto, H. 2012 Zygospore formation between homothallic and heterothallic strains of Closterium. Sex. Plant Reprod., 25, 1-9.
Keywords: Closterium; Conjugation; Homotallism; Heterothallism: Dexual reproduction; Zygospore
Strain(s): 5859606162636465676869702612666 
PubMed: 21858438
DOI: 10.1007/s00497-011-0174-z

Sekimoto, H. 2012 Speciation and reproductive isolation in unicellular charophycean alga, Closterium peraceroum-strigosum-littorale complex. IFO Res. Commun., 26, 71-85 (in Japanese with English summary).
Keywords: Closterium: heterothallism; homothallism; reproductive isolation; sex pheromone
Strain(s): 58596061626364656768697026145484551 

Tsuchikane, Y., Ito, M., Sekimoto, H. 2008 Reproductive isolation by sex pheromones in the Closterium peracerosum-strigosum-littorale complex (Zygnematales, Charophyceae). J. Phycol., 44, 1197-1203.
Keywords: Closterium; conjugation; pheromone; reproductive isolation; sexual reproduction
Strain(s): 53545859646567686970229261 
PubMed: 27041716
DOI: 10.1111/j.1529-8817.2008.00577.x

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): 192122232425262728293031323334353637383940414445465051525354555658596061626364656667686970737475767778798081878990919293949596979899100101102103104105106107108109110111112119120122123125127128129130131132133134135137138139144147151152153154155156157158159160162163164165166167168170171172173174175176177178179180181182183185186187188189191192193194197198199200201202203204205206207208209210211212213214215216217224226227228229230231232241242243244245246248257259261262263266267268287288289290294295297298299300301302303305306308309310312313329334337338339340341342349351359360361362375378379380382384385390394396397398415416418419421422423424425426427428429430431432433434436437438439440446447448449450451452453454455456457458459460464468469474478479480481503504505506507509510512514515522523524527528529530531532536537538539540541542543544545546564565566567568569570571572573574575576577578579580581582583584585592593594595596597598604610628630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667672685686687688689690691692693694717718719720721722723724725726727728729 

Watanabe, M. M. & Ichimura, T. 1978 Biosystematic studies of the Closterium peracerosum-strigosum-littorale complex. II. Reproductive isolation and morphological variation among several populations from the Northern Kanto area in Japan. Bot. Mag. Tokyo, 91, 1-10.
Strain(s): 51525354555658596061626364656970261 

Watanabe, M. M. & Ichimura, T. 1978 Biosystematic studies of the Closterium peracerosum-strigosum-littorale complex. III. Degrees of sexual isolation among the three population groups from the Northern Kanto area. Bot. Mag. Tokyo, 91, 11-24.
Strain(s): 51525354555658596061626364656970261 
DOI: 10.1007/BF02489099

Watanabe, M. M. 1977 Biosystematics in Closterium of sexual unicellular green algae and Calothrix and Spirulina of asexual filamentous blue-green algae, with special reference to the analyses of natural populations. Thesis D. Sci., Hokkaido University, 114 pp., 28 tables, 54 figs.
Strain(s): 39454651525354555658596061626364656667686970261262266268 

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