Paenalcaligenes faecalis sp. nov., a novel species of the family Alcaligenaceae isolated from chicken faeces

A Gram-negative, motile, rod-shaped aerobic and alkalogenic bacterium, designated as strain YLCF04 T , was isolated from chicken faeces. Its growth was optimal at 28 °C (range, 10–40 °C), pH 8 (range, pH 6–9) and in 1 % (w/v) NaCl (range, 0–10 %). It was classified to the genus Paenalcaligenes and was most closely related to Paenalcaligenes hominis CCUG 53761A T (97.5 % similarity) based on 16S rRNA gene sequence analysis. Average nucleotide identity and digital DNA–DNA hybridization values between YLCF04 T and P. hominis CCUG 53761A T were 76.3 and 18.2 %, respectively. Strain YLCF04 T has a genome size of 2.7 Mb with DNA G+C content of 46.3 mol%. Based on its phylogenetic, genomic, phenotypic and biochemical characteristics, strain YLCF04 T represents a novel species of the genus Paenalcaligenes , for which the name Paenalcaligenes faecalis sp. nov. is proposed. The type strain is YLCF04 T (=CCTCC AB 2022359 T = KCTC 92789 T ).