- International Journal of Systematic and Evolutionary Microbiology
- Volume 57, Issue 8
f Planifilum yunnanense sp. nov., a thermophilic thermoactinomycete isolated from a hot spring
- Authors: Yan-xin Zhang1, Chen Dong1, Shen Biao1
- VIEW AFFILIATIONS
Affiliations: 1 Key Laboratory of Microbiological Engineering of Agricultural Environment, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- CorrespondenceBiao Shen firstname.lastname@example.org
- Int J Syst Evol Microbiol, August 2007 57: 1851-1854, doi: 10.1099/ijs.0.64646-0
- Subject: New Taxa - Other Gram-Positive Bacteria
- Published Online:
A thermophilic actinomycete, strain LA5T, was isolated from a hot spring in Yunnan province, People's Republic of China. The isolate grew aerobically at temperatures of 50–75 °C. Aerobic mycelia were not observed. Single spores were produced along the substrate hypha. Strain LA5T was characterized chemotaxonomically by having MK-7 as the predominant menaquinone and iso-C17 : 0 (27.7 %) and C16 : 0 (22.4 %) as the major fatty acids. The cell wall contained meso-diaminopimelic acid. The DNA G+C content was 56.8 mol%. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain LA5T belongs to the genus Planifilum. Levels of DNA–DNA relatedness between strain LA5T and Planifilum fimeticola H0165T and Planifilum fulgidum 500275T were 43.6 and 52.7 %, respectively. On the basis of phenotypic properties and phylogeny, strain LA5T represents a novel species of the genus Planifilum, for which we propose the name Planifilum yunnanense sp. nov., with the type strain LA5T (=CCTCC AA206002T=KCTC 13052T).
The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain LA5T is DQ119659.
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