Parafilimonas rhizosphaerae sp. nov., isolated from the rhizosphere of tomato plant (Solanum lycopersicum L.)

Int J Syst Evol Microbiol. 2017 Jul;67(7):2279-2283. doi: 10.1099/ijsem.0.001945. Epub 2017 Jul 10.

Abstract

A bacterial strain, designated T16E-198T, was isolated from the rhizosphere of tomato plant collected from a farm on Buyeo-gun, Chungcheongnam-do, South Korea. The strain was aerobic, Gram-stain-negative, rod-shaped, non-flagellated and yellow-pigmented. Strain T16E-198T was mesophilic, catalase- and oxidase-positive and with flexirubin-type pigments. A phylogenetic tree based on 16S rRNA gene sequences showed that strain T16E-198T formed a lineage with Parafilimonas terrae 5GHs7-2T, sharing highest sequence similarity of 98.4 % with it and less than 93 % with all the other validly published species. The major fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. The predominant menaquinone was MK-7. The polar lipids were phosphatidylethanolamine, one unknown aminophospholipid, five unknown aminolipids and five unknown lipids. The DNA G+C content was 41.2 mol%. On the basis of the phenotypic, phylogenetic and chemotaxonomic data presented, strain T16E-198T is considered to represent a novel species of the genus Parafilimonas, for which the name Parafilimonas rhizosphaerae sp. nov. is proposed; the type strain is T16E-198T (=KACC 18786T=JCM 31601T).

MeSH terms

  • Bacterial Typing Techniques
  • Bacteroidetes / classification*
  • Bacteroidetes / genetics
  • Bacteroidetes / isolation & purification
  • Base Composition
  • DNA, Bacterial / genetics
  • Fatty Acids / chemistry
  • Phospholipids / chemistry
  • Phylogeny*
  • RNA, Ribosomal, 16S / genetics
  • Republic of Korea
  • Rhizosphere*
  • Sequence Analysis, DNA
  • Soil Microbiology*
  • Solanum lycopersicum / microbiology*
  • Vitamin K 2 / analogs & derivatives
  • Vitamin K 2 / chemistry

Substances

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