Ornatilinea apprima gen. nov., sp. nov., a cellulolytic representative of the class Anaerolineae

O. A. Podosokorskaya, E. A. Bonch-Osmolovskaya, A. A. Novikov, T. V. Kolganova, I. V. Kublanov

Research output: Contribution to journalArticlepeer-review

111 Scopus citations

Abstract

A novel obligately anaerobic, mesophilic, organotrophic bacterium, strain P3M-1T, was isolated from a microbial mat formed in a wooden bath filled with hot water emerging from a 2775 mdeep well in the Tomsk region of western Siberia, Russia. Cells of strain P3M-1T were rodshaped, 0.3-0.7 μm in width and formed multicellullar filaments that reached up to 400 mm in length. Strain P3M-1T grew optimally at 42-45 °C, pH 7.5-8.0, and with 0.1% (w/v) NaCl. Under optimal conditions, the doubling time was 6 h. The isolate was able to ferment a variety of proteinaceous substrates and sugars, including microcrystalline cellulose. Acetate, ethanol and H2 were the main products of glucose fermentation. The genomic DNA G+C content was 55 mol%. 16S rRNA gene sequence-based phylogenetic analyses showed that strain P3M-1T was a member of the class Anaerolinea, with 92.8% sequence similarity to Levilinea saccharolytica KIBI-1T. Based on phylogenetic analysis and physiological properties, strain P3M-1T represents a novel species in a new genus, for which the name Ornatilinea apprima gen. nov., sp. nov. is proposed; the type strain of O. apprima is P3M-1T (5DSM 23815T5VKM B-2669T).

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume63
Issue number1
DOIs
StatePublished - 2013
Externally publishedYes

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