Elstera cyanobacteriorum sp. nov., a novel bacterium isolated from cyanobacterial aggregates in a eutrophic lake

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DOI

  • Haiyuan Cai, 1​State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, PR China.
  • ,
  • Yonghui Zeng
  • Yanan Wang, 4​Key Laboratory of Microbial Engineering at the Institute of Biology, Henan Academy of Sciences, Zhengzhou, PR China.
  • ,
  • Helong Jiang, 1​State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, PR China.

A bacterial strain, TH019(T), was isolated from cyanobacterial aggregates in a eutrophic lake, Taihu Lake, China. Cells were observed to be slightly curved rod-shaped and stained Gram-negative. Optimal growth was obtained at pH 7.0 (range, 5.0-9.0) and 28 °C (range, 20-37 °C) in R2A broth. The cells were found to be positive for oxidase and catalase activities, nitrate reduction and denitrification. The major respiratory quinone was ubiquinone Q-10. The major fatty acids were identified as C18 : 1 ω6c/C18 : 1 ω7c and C18 : 1 2OH. The 16S rRNA gene sequence of strain TH019(T) was phylogenetically related to Elstera litoralis Dia-1(T) (97.9 % similarity). The genomic G+C content of strain TH019(T) was 62.4 mol% based on total genome calculations. Average nucleotide identity and digital DNA-DNA hybridization values for complete genomes were 78.8 and 19.8 %, respectively, between strain TH019(T) and Elstera litoralis Dia-1(T). The phenotypic, chemotaxonomic and phylogenetic properties, and genome analysis suggested that strain TH019(T) represented a novel species within the genus Elstera, for which the name Elstera cyanobacteriorum sp. nov. is proposed. The type strain is TH019(T) (=CGMCC 1.15802(T)=LMG 29721(T)).

Original languageEnglish
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume67
Issue10
Pages (from-to)4272-4275
Number of pages4
ISSN1466-5026
DOIs
Publication statusPublished - Oct 2017

    Research areas

  • Bacterial Typing Techniques, Base Composition, China, Cyanobacteria, DNA, Bacterial, Fatty Acids, Lakes, Nucleic Acid Hybridization, Phylogeny, RNA, Ribosomal, 16S, Rhodospirillaceae, Sequence Analysis, DNA, Ubiquinone, Journal Article

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