A Gram-stain negative, rod-shaped bacterial, catalase and oxidase positive strain (83-4) that formed yellow colonies was isolated from human Meibomian gland secretions. Strain 83-4 belongs to the genus Lysobacter according to phylogenetic analysis based on 16S rRNA gene sequences. The DNA G+C content was 67.1 mol%. The circular genome was 2.6 Mb, which contained 2431 protein-coding sequences, 75 pseudogenes, 46 tRNAs, 3 rRNAs and 4 ncRNAs. A bacteriocin cluster and aryl polyene cluster were also found in the genome. The average nucleotide identity value was 79.6% between isolate 83-4 and the closely related type strain Lysobacter tolerans UM1. The estimated DNA-DNA hybridization value between strain 83-4 and L. tolerans UM1 was 41.6%. Diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol were the major polar lipids. Iso-C, iso-C 3-OH, iso-C and summed feature 9 (iso-Cω9c) were the major fatty acids. Ubiquinone (Q-8) was the only respiratory quinone. Therefore, based on the data of phylogenetic analysis, chemotaxonomical and biochemical analyses, it is concluded that strain 83-4 represents a novel species of the genus Lysobacter with the name of Lysobacter oculi sp. nov. The type strain is 83-4 (= CGMCC 1.13464 = NRBC 113451).
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