Filibacter tadaridae sp. nov., isolated from within a guano pile from a colony of Mexican free-tailed bats Tadarida brasiliensis

Int J Syst Evol Microbiol. 2019 May;69(5):1438-1442. doi: 10.1099/ijsem.0.003334. Epub 2019 Mar 20.


A Gram-stain-positive, aerobic bacterium, TB-66T, was isolated from a pile of bat guano in a cave of New Mexico, USA. On the basis of 16S rRNA gene sequence similarity comparisons, strain TB-66Tgrouped together with Filibacter limicola showing a 16S rRNA gene sequence similarity of 98.5 % to the type strain. The quinone system of strain TB-66T consisted predominantly of menaquinone MK-7. The polar lipid profile contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylserine and three unidentified phospholipids. The peptidoglycan type was A4α l-Lys-d-Glu (A11.33). The major fatty acids were C15 : 0 anteiso, C16 : 0, and C16 : 1 ω7c. The G+C content of the genomic DNA was 37.6 (±1.8) mol%. On the basis of the genotypic and phenotypic properties it is clear that strain TB-66T represents a member of the genus Filibacter, but is distinct from the only other species in the genus, Filibacter limicola DSM 13886T. We propose a novel species with the name Filibacter tadaridae sp. nov. The type strain is TB-66T (= CIP 111629T= LMG 30660T= CCM 8866T).

Keywords: Filibachter; tadaridae; taxonomy.

MeSH terms

  • Animals
  • Bacterial Typing Techniques
  • Base Composition
  • Chiroptera / microbiology*
  • DNA, Bacterial / genetics
  • Fatty Acids / chemistry
  • Feces / microbiology*
  • New Mexico
  • Nucleic Acid Hybridization
  • Peptidoglycan / chemistry
  • Phospholipids / chemistry
  • Phylogeny*
  • Planococcaceae / classification*
  • Planococcaceae / isolation & purification
  • RNA, Ribosomal, 16S / genetics
  • Sequence Analysis, DNA
  • Vitamin K 2 / analogs & derivatives
  • Vitamin K 2 / chemistry


  • DNA, Bacterial
  • Fatty Acids
  • Peptidoglycan
  • Phospholipids
  • RNA, Ribosomal, 16S
  • Vitamin K 2
  • menaquinone 7