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A Gram-staining-negative, aerobic, non-motile, rod-shaped bacterium with degradation ability of chitin, designated strain YD-1 T, was isolated from landfill soil sample collected in Wenzhou, Zhejiang province, China. The growth of strain YD-1 T occurred optimally in the tryptone soy broth (TSB) with 1.0% NaCl at pH 7.0–8.0, 30 °C. Ubiquinone-8 (Q-8) was the predominant quinone. The polar lipids of strain YD-1 T consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, five glycolipids and four lipids. The major fatty acids were iso-C15:0 (30.7%), iso-C17:1ω9c (23.2%), iso-C11:0 (18.9%), iso-C11:0 3-OH (6.8%) and iso-C17:0 (5.9%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that strain YD-1 T was affiliated to the genus Luteimonas with the highest similarity to Luteimonas marina KCTC 12327 T (97.3%), followed by Luteimonas aquatica DSM 22088 T (96.5%) and Luteimonas composti CCUG 53595 T (96.4%). The genomic DNA G + C content of strain YD-1 T was 71.8 mol%. Average nucleotide identity (ANI) and the digital DNA–DNA hybridizations (dDDH) for draft genomes between strain YD-1 T and Luteimonas marina KCTC 12327 T were 82.7% and 26.1%, respectively. On the basis of genotypic, phenotypic and chemotaxonomic data, strain YD-1 T is considered to represent a novel species to degrade chitin in the genus Luteimonas, for which the name Luteimonas wenzhouensis sp. nov. is proposed, with YD-1 T (= KCTC 72425 T = CCTCC AB 2019153 T) as the type strain.

An aerobic, Gram-stain-negative, non-motile, rod-shaped bacterium, designated strain CC-VAM-7T, was isolated from a marine sediment sample collected at Kending, Taiwan. The isolate grew optimally at pH 7.0 and 30 °C and in the presence of 4 % (w/v) NaCl. The most closely related strains in terms of 16S rRNA gene sequence similarity were the type strains of Luteimonas huabeiensis (95.2 %) and Lysobacter defluvii (95.0 %). Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain CC-VAM-7T clustered with members of the genus Luteimonas. Strain CC-VAM-7T possessed C15 : 1ω5c, C16 : 1ω5c, iso-C11 : 0, iso-C15 : 0, iso-C16 : 0, iso-C17 : 0, iso-C11 : 0 3-OH and summed feature 9 (10-methyl C16 : 0 and/or iso-C17 : 1ω9c) as predominant fatty acids. The polar lipid profile contained major amounts of diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine and moderate amounts of an unidentified phospholipid. The genomic DNA G+C content was 73.4 mol%. Ubiquinone 8 (Q-8) was the predominant respiratory quinone. According to its distinct phylogenetic, phenotypic and chemotaxonomic features, which were in line with those of other members of the genus Luteimonas, strain CC-VAM-7T is proposed to represent a novel species within the genus Luteimonas, for which the name Luteimonas pelagia sp. nov. is proposed. The type strain is CC-VAM-7T ( = BCRC 80558T = JCM 18792T). In addition, we propose emended descriptions of Luteimonas aquatica Chou et al. 2008 , Luteimonas composti Young et al. 2007 , Luteimonas mephitis Finkmann et al. 2000 , Lysobacter enzymogenes Christensen and Cook 1978 and Lysobacter panaciterrae Ten et al. 2009 .

A Gram-negative, aerobic and non-motile rod, designated Y4T, was isolated from a cucumber leaf from Pinggu District, east Beijing, PR China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain Y4T was most closely related to Luteimonas aquatica RIB1-20T (96.7 % 16S rRNA gene sequence similarity). DNA–DNA relatedness between strain Y4T and L. aquatica RIB1-20T was 42.5±3.9 %. The predominant fatty acids were iso-C15 : 0, iso-C17 : 1ω9c, iso-C16 : 0 and iso-C17 : 0. The major ubiquinone was Q-8. The DNA G+C content of the type strain was 69.9 mol%. Based on the evidence above, strain Y4T represents a novel species of the genus Luteimonas , for which the name Luteimonas cucumeris sp. nov. is proposed. The type strain is Y4T ( = CGMCC 1.10821T = KCTC 23627T).