A Gram-staining-negative, aerobic and rod-shaped bacterium, designated HME8881T, was isolated from a freshwater wetland located in the Republic of Korea. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain HME8881T grouped with members of the genus Ferruginibacter. The most closely related species were Ferruginibacter lapsinanis HU1-HG42T (95.6%), Ferruginibacter alkalilentus HU1-GD23T (95.1%), 'Ferruginibacter profundus' DS48-5-3 (94.7%) and Ferruginibacter yonginensis HME8442T (93.4%). The major fatty acids were iso-C15 : 0, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), iso-C15 : 1G, C16 : 0 and iso-C17 : 0 3-OH. A polar lipid analysis revealed phosphatidylethanolamine, two unidentified aminolipids, three unidentified aminophospholipids, two unidentified phospholipids and two unidentified lipids. DNA G+C content was 37.7 mol%. These results suggest that strain HME8881T represents a novel species of the genus Ferruginibacter, for which the name Ferruginibacter paludis sp. nov., is proposed with the type strain HME8881T ( = KCTC 42121T = CECT 8366T). In addition, emended descriptions of Ferruginibacter lapsinanis and Ferruginibacter alkalilentus are also proposed on the basis of new data obtained during this study.
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