Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description)

Hugenholtz, Philip and Stackebrandt, Erko (2004) Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description). International Journal of Systematic and Evolutionary Microbiology, 54 2049-2051. doi:10.1099/ijs.0.03028-0


Author Hugenholtz, Philip
Stackebrandt, Erko
Title Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description)
Journal name International Journal of Systematic and Evolutionary Microbiology   Check publisher's open access policy
ISSN 1466-5026
1466-5034
Publication date 2004-11-01
Sub-type Article (original research)
DOI 10.1099/ijs.0.03028-0
Volume 54
Start page 2049
End page 2051
Total pages 3
Place of publication Reading, Berks, United Kingdom
Publisher Society for General Microbiology
Language eng
Abstract Sphaerobacter thermophilus was originally classified as the deepest branching member of the phylum Actinobacteria (high-G + C, Gram-positive bacteria) based on 16S rRNA gene comparative analysis. However, the analysis lacked suitable outgroups, and additional 16S rRNA gene sequences indicate that it is most closely related to Thermomicrobium roseum, which it also resembles phenotypically. Furthermore, both species are reproducibly affiliated with the phylum Chloroflexi (green non-sulfur bacteria), despite T. roseum currently being classified in its own phylum, the Thermomicrobia. Transfer of Sphaerobacter to the class Thermomicrobia, and transfer of the class Thermomicrobia to the phylum Chloroflexi, are proposed. Descriptions for the phylum Chloroflexi and the class Thermomicrobia are emended to reflect the proposed changes in classification.
Keyword Sphaerobacter thermophilus
Thermomicrobium roseum
Classification
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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