Ectothiorhodospira variabilis (DSM 21381, VKM B-2479, WN22)

Name: Ectothiorhodospira variabilis (DSM 21381, VKM B-2479, WN22)
Creator: BacDive
License: http://creativecommons.org/licenses/by/4.0/

BacDive ID 4279

Type strain

Strain Designation WN22

Culture col. no. DSM 21381 VKM B-2479 WN22

NCBI tax ID(s) 505694

Special Collections DSMZ Literature strains

Links

Ectothiorhodospira variabilis WN22 is an anaerobe, mesophilic, Gram-negative prokaryote that was isolated from microbial mat of shallow water soda lake.

Gram-negative motile anaerobe mesophilic 16S sequence

Name and taxonomic classification

SI-ID 362304

DSM 21381,VKM B-2479

@ref 20215

Last LPSN update 2025-12-16 09:47:46

Domain Pseudomonadati

Phylum Pseudomonadota

Class Gammaproteobacteria

Order Chromatiales

Family Ectothiorhodospiraceae

Genus Ectothiorhodospira

Species Ectothiorhodospira variabilis

Full scientific name Ectothiorhodospira variabilis Gorlenko et al. 2009

Morphology

Cell morphology

@ref	Gram stain	Cell length	Cell width	Motility
29039	negative	1.35 µm	1 µm

Pigmentation

29039

Productionyes

Culture and growth conditions

Culture medium

@ref	Name	Growth	Medium link	Composition
15657	ECTOTHIORHODOSPIRA VARIABILIS MEDIUM (DSMZ Medium 1224)		Medium recipe at MediaDive	Name: ECTOTHIORHODOSPIRA VARIABILIS MEDIUM (DSMZ Medium 1224) Composition: NaCl 50.0 g/l NaHCO3 15.0 g/l Na2CO3 5.0 g/l K2HPO4 0.5 g/l NH4Cl 0.5 g/l Na2S2O3 x 5 H2O 0.5 g/l Na acetate 0.5 g/l Na2S x 9 H2O 0.5 g/l MgCl2 x 6 H2O 0.2 g/l KCl 0.1 g/l Yeast extract 0.1 g/l HCl 0.0025 g/l FeCl2 x 4 H2O 0.0015 g/l CoCl2 x 6 H2O 0.00019 g/l MnCl2 x 4 H2O 0.0001 g/l ZnCl2 7e-05 g/l Na2MoO4 x 2 H2O 3.6e-05 g/l NiCl2 x 6 H2O 2.4e-05 g/l Vitamin B12 2e-05 g/l H3BO3 6e-06 g/l CuCl2 x 2 H2O 2e-06 g/l Distilled water

Culture temp

@ref	Growth	Type	Temperature (°C)	Range
15657	positive	growth	28	mesophilic
29039	positive	growth	20-45
29039	positive	optimum	32.5	mesophilic

Culture pH

@ref	Ability	Type	PH
29039	positive	optimum	9.25
29039	positive	growth	7.5-10

Physiology and metabolism

Oxygen tolerance

@ref	Oxygen tolerance
15657	anaerobe
29039	anaerobe

Halophily

@ref	Salt	Growth	Tested relation	Concentration
29039	NaCl	positive	growth	02-20 %
29039	NaCl	positive	optimum	6.5 %

Metabolite utilization

@ref	Chebi-ID	Metabolite	Utilization activity	Kind of utilization tested
29039	30089 ChEBI	acetate	+	carbon source
29039	24996 ChEBI	lactate	+	carbon source
29039	15792 ChEBI	malonate	+	carbon source
29039	17272 ChEBI	propionate	+	carbon source
29039	15361 ChEBI	pyruvate	+	carbon source
29039	30031 ChEBI	succinate	+	carbon source

Isolation, sampling and environmental information

Isolation source categories

Cat1	Cat2	Cat3
#Environmental	#Aquatic	#Lake (large)
#Environmental	#Microbial community	#Microbial mat
#Condition	#Alkaline	-

Isolation

@ref	Sample type	Geographic location	Country	Country ISO 3 Code	Continent
15657	microbial mat of shallow water soda lake	Wadi Natrum, Lake Um-Risha	Egypt	EGY	Africa

Taxonmaps

69479

Global distribution of 16S sequence AM943121 (>99% sequence identity) for Ectothiorhodospira from Microbeatlas

Aquatic Samples	907
Soil Samples	106
Animal Samples	498
Plant Samples	10
Total Samples	1521

Interaction and safety

Risk assessment

@ref	Biosafety level	Biosafety level comment
15657	1	Risk group (German classification) According to TRBA 466

Sequence information

16S sequences

@ref	Description	Accession	Length	Database	NCBI tax ID
15657	Ectothiorhodospira variabilis partial 16S rRNA gene, type strain WN22T	AM943121	1401		505694

GC content

@ref	GC-content (mol%)	Method
15657	62.7	thermal denaturation, midpoint method (Tm)
29039	62.7

Genome-based predictions

Literature

Topic	Title	Authors	Journal	DOI	Year
Phylogeny	Genomic Comparison, Phylogeny and Taxonomic Reevaluation of the Ectothiorhodospiraceae and Description of Halorhodospiraceae fam. nov. and Halochlorospira gen. nov.	Imhoff JF, Kyndt JA, Meyer TE.	Microorganisms	10.3390/microorganisms10020295	2022
Phylogeny	Description of Ectothiorhodospira salini sp. nov.	Venkata Ramana V, Sasikala C, Veera Venkata Ramaprasad E, Venkata Ramana C	J Gen Appl Microbiol	10.2323/jgam.56.313	2010
Phylogeny	Ectothiorhodospira variabilis sp. nov., an alkaliphilic and halophilic purple sulfur bacterium from soda lakes.	Gorlenko VM, Bryantseva IA, Rabold S, Tourova TP, Rubtsova D, Smirnova E, Thiel V, Imhoff JF	Int J Syst Evol Microbiol	10.1099/ijs.0.004648-0	2009

References

#15657	Leibniz Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH ; Curators of the DSMZ; DSM 21381
#20215	Parte, A.C., Sardà Carbasse, J., Meier-Kolthoff, J.P., Reimer, L.C. and Göker, M.: List of Prokaryotic names with Standing in Nomenclature (LPSN) moves to the DSMZ. IJSEM ( DOI 10.1099/ijsem.0.004332 )
#29039	Barberan A, Caceres Velazquez H, Jones S, Fierer N.: Hiding in Plain Sight: Mining Bacterial Species Records for Phenotypic Trait Information. mSphere 2: 2017 ( DOI 10.1128/mSphere.00237-17 , PubMed 28776041 ) - originally annotated from #25469 (see below)
#69479	João F Matias Rodrigues, Janko Tackmann,Gregor Rot, Thomas SB Schmidt, Lukas Malfertheiner, Mihai Danaila,Marija Dmitrijeva, Daniela Gaio, Nicolas Näpflin and Christian von Mering. University of Zurich.: MicrobeAtlas 1.0 beta .
#126262	A. Lissin, I. Schober, J. F. Witte, H. Lüken, A. Podstawka, J. Koblitz, B. Bunk, P. Dawyndt, P. Vandamme, P. de Vos, J. Overmann, L. C. Reimer: StrainInfo—the central database for linked microbial strain identifiers. ( DOI 10.1093/database/baaf059 )

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Ectothiorhodospira variabilis (DSM 21381, VKM B-2479, WN22)

Name and taxonomic classification

Morphology

Cell morphology

Pigmentation

Culture and growth conditions

Culture medium

Culture temp

Culture pH

Physiology and metabolism

Oxygen tolerance

Halophily

Metabolite utilization

Isolation, sampling and environmental information

Isolation source categories

Isolation

Taxonmaps

Interaction and safety

Risk assessment

Sequence information

16S sequences

GC content

Genome-based predictions

Literature

Literature

References

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