%0 Journal Article %A Ghio, Silvina %A Sauka, Diego H. %A Ferrari, Alejandro E. %A Piccini, Florencia E. %A Ontañon, Ornella M. %A Campos, Eleonora %T Paenibacillus xylanivorans sp. nov., a xylan-degrading bacterium isolated from decaying forest soil %D 2019 %J International Journal of Systematic and Evolutionary Microbiology, %V 69 %N 12 %P 3818-3823 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.003686 %K Paenibacillus xylanivorans %K bacteria %K forest soil %K xylanase %I Microbiology Society, %X A xylanolytic bacterial strain, named A59T, was isolated from a forest soil consortium in southern Argentina. Strain A59T is a Gram-stain-positive, facultative anaerobic, endospore-forming and rod-shaped bacterium. Its optimal growth conditions are 30 °C (range, 28–37 °C), pH 7 (range, pH 5–10) and it tolerates up to 7 % of NaCl (range, 2–7 %). Chemotaxonomic analysis revealed that strain A59Tpossesses meso-diaminopimelic acid in the cell wall. It contains menaquinone MK-7 as the predominant isoprenoid quinone and the major fatty acid is anteiso-C15 : 0 (35.1 %), with a moderate amount of C16 : 0 (6.9 %). According to 16S RNA gene sequence analysis, the isolate is phylogenetically placed in the same cluster as Paenibacillus taichungensis BCRC 17757T (99.7 % nucleotide sequence identity) and Paenibacillus pabuli NBRC 13638T (99.1 %) and is closely related to Paenibacillus tundrae A10bT (98.8 %). However, phylogenetic studies based on the housekeeping gyrB gene placed A59T in a separate branch from all other related type strains. Furthermore, the results of whole genome average nucleotide identity analysis (gANI) with related type strains was lower than 91.10 % and the digital DNA–DNA hybridization value was lower than 44.30 %, which are below the threshold values for separating two species. The DNA G+C content was estimated as 46.09 mol%, based on genome sequencing. On the basis of these results, A59T represents a new species of the genus Paenibacillus , and we propose the name Paenibacillus xylanivorans sp. nov. The type strain is A59T (=DSM 107920T=NCIMB 15123T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003686