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Title 

Proposal of the genus Thermoactinomyces sensu stricto and three new genera, Laceyella, Thermoflavimicrobium and Seinonella, on the basis of phenotypic, phylogenetic and chemotaxonomic analyses

Authors 

Jung-Hoon YoonIn Gi KimYong Kook ShinYong Ha Park

Publisher 

Society for General Microbiology

Issue Date 

2005

Citation 

International Journal of Systematic and Evolutionary Microbiology, vol. 55, no. 1, pp. 395-400

Keywords 

laceyellanew combination (taxonomy)new genusthermoactinomycesthermoactinomyces dichotomicusthermoactinomyces intermediusthermoactinomyces peptonophilusthermoactinomyces putidusthermoactinomyces saccharithermoactinomyces vulgaris

Abstract 

Phylogenetic analysis based on 16S rRNA gene sequences revealed that Thermoactinomyces species with validly published names can be assigned to four clusters or lineages. The type strains of Thermoactinomyces sacchari and Thermoactinomyces putidus were differentiated from the type strains of Thermoactinomyces vulgaris and Thermoactinomyces intermedius by the predominant menaquinone and fatty acid profiles. The type strains of Thermoactinomyces dichotomicus and Thermoactinomyces peptonophilus formed lines of descent distinct from other Thermoactinomyces species. Thermoactinomyces dichotomicus KCTC 3667T was distinguishable from the type strains of Thermoactinomyces vulgaris and Thermoactinomyces intermedius by the contents of two fatty acids, iso-C16:0 and iso-C17:0. Thermoactinomyces dichotomicus could be distinguished from other Thermoactinomyces species by DNA G+C content and some phenotypic properties, particularly its property of forming a yellow colour. The type strain of Thermoactinomyces peptonophilus was distinguishable from other Thermoactinomyces species by differences in menaquinone profile, major fatty acids, DNA G+C content and some physiological properties including optimal growth temperature. On the basis of these data, the creation of three new genera, Laceyella, Thermoflavimicrobium and Seinonella, is proposed in addition to the genus Thermoactinomyces sensu stricto. The genus Laceyella gen. nov. is proposed to accommodate Thermoactinomyces sacchari and Thermoactinomyces putidus as Laceyella sacchari comb. nov. and Laceyella putida comb. nov., the genus Thermoflavimicrobium gen. nov. is proposed for Thermoactinomyces dichotomicus as Thermoflavimicrobium dichotomicum comb. nov. and the genus Seinonella gen. nov. is proposed for Thermoactinomyces peptonophilus as Seinonella peptonophila comb. nov.

ISSN 

1466-5026

Link 

http://dx.doi.org/10.1099/ijs.0.63203-0

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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