Fundicoccus ignavus gen. Nov., sp. nov., a novel genus of the family aerococcaceae isolated from bulk tank milk

Annemarie Siebert, Christopher Huptas, Mareike Wenning, Siegfried Scherer, Etienne V. Doll

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Three strains of a Gram-stain-positive, catalase-negative, facultative anaerobic, and coccoid species were isolated from German bulk tank milk. Phylogenetic analyses based on the 16S rRNA gene sequences indicated that the three strains (WS4937T, WS4759 and WS5303) constitute an independent phylogenetic lineage within the family Aerococcaceae with Facklamia hominis CCUG 36813T (93.7–94.1 %) and Eremococcus coleocola M1831/95/2T (93.5 %) as most closely related type species. The unclas-sified strains demonstrated variable growth with 6.5 % (w/v) NaCl and tolerated pH 6.5–9.5. Growth was observed from 12 to 39 °C. Their cell-wall peptidoglycan belongs to the A1α type (l-Lys-direct) consisting of alanine, glutamic acid and lysine. The predominant fatty acids were C16: 1 ω9c, C16: 0 and C18: 1 ω9c and in the polar lipids profile three glycolipids, a phospholipid, phos-phatidylglycerol, phosphoglycolipid and diphosphatidylglycerol were found. The G+C content of strain WS4937T was 37.4 mol% with a genome size of ~3.0 Mb. Based on phylogenetic, phylogenomic and biochemical characterizations, the isolates can be demarcated from all other genera of the family Aerococcaceae and, therefore, the novel genus Fundicoccus gen. nov. is proposed. The type species of the novel genus is Fundicoccus ignavus gen. nov., sp. nov. WS4937T (=DSM 109652T=LMG 31441T).

Original languageEnglish
Article number004344
Pages (from-to)4774-4781
Number of pages8
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume70
Issue number8
DOIs
StatePublished - 2020

Keywords

  • Aerococcaceae
  • Fundicoccus ignavus
  • Raw milk

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