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A Gram-stain-negative, aerobic, rod-shaped, non-motile, pink-pigmented bacterium, designated NLT, was isolated from arsenic-contaminated farmland soil. Strain NLT showed the highest 16S rRNA gene sequence similarities with those of Hymenobacter jeollabukensis 1-3-3-8T (98.9 %), Hymenobacter gummosus ANT-18T (97.5 %), Hymenobacter paludis KBP-30T (97.4 %), Hymenobacter ocellatus Myx2105T (97.1 %) and Hymenobacter coalescens WW84T (96.4 %). The values of genomic orthoANI and dDDH between strain NLT and Hymenobacter jeollabukensis KCTC 52741T was 90.5 and 41.2 %, respectively, and those between strain NLT and Hymenobacter gummosus KCTC 52166T was 84.4 and 28.4 %, respectively. Strain NLT exhibited DNA–DNA hybridisation values of 41.3 and 44.1 % with Hymenobacter paludis KCTC 32237T and Hymenobacter ocellatus DSM 11117T, respectively. Strain NLT had major fatty acids (>10 %) of summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B), iso-C15 : 0 and anteiso-C15 : 0 and the predominant polyamine of homospermidine. The only respiratory quinone was menaquinone-7. The polar lipids were phosphatidylethanolamine, phospholipid, three unidentified lipids and two amino lipids. Strain NLT had a genome size of 6.04 Mb and the average G+C content of 65.6 %. Compared to the other Hymenobacter spp., strain NLT is different in polar lipid profile (without aminophospholipid) and leucine arylamidase activity. Based on the data of the polyphasic analysis, it is considered that strain NLT represented a novel species of genus Hymenobacter , for which the name Hymenobacter edaphisp. nov. is proposed. The type strain is NLT (=KCTC 62521T=CCTCC AB 2018028T).
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