RT Journal Article SR Electronic(1) A1 Tang, Mingxing A1 Tan, Li A1 Wu, Hualian A1 Dai, Shikun A1 Li, Tao A1 Chen, Chenghao A1 Li, Jiaying A1 Fan, Jiewei A1 Xiang, Wenzhou A1 Li, Xiang A1 Wang, GuanghuaYR 2016 T1 Gelatiniphilus marinus gen. nov., sp. nov., a bacterium from the culture broth of a microalga, Picochlorum sp. 122, and emended description of the genus Hwangdonia JF International Journal of Systematic and Evolutionary Microbiology, VO 66 IS 8 SP 2893 OP 2898 DO https://doi.org/10.1099/ijsem.0.001074 PB Microbiology Society, SN 1466-5034, AB A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped bacterium, designated strain GYP-24T, was isolated from the culture broth of a marine microalga, Picochlorum sp. 122. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain GYP-24T forms a robust cluster with H.wangdonia seohaensis KCTC 32177T (95.8 % sequence similarity) in the family Flavobacteriaceae . Growth of strain GYP-24T was observed at 15, 22, 28, 30, 33 and 37 °C (optimal 30–33 °C), pH 6.0–10.0 (optimal pH 7.0–8.0) and in the presence of 0.5–4 % (w/v) NaCl (optimal 2–3 %). The only menaquinone of strain GYP-24T was MK-6, and the G+C content of the genomic DNA was 36.9 mol%. The major fatty acid profile comprised iso-C17 : 0 3-OH, summed feature 3 (C16 : 1 ω7c/ω6c), iso-C15 : 1 G and iso-C15 : 0. The major polar lipids of strain GYP-24T were phosphatidylethanolamine, one unidentified phospholipid, three unidentified aminolipids and three unidentified lipids. Comprehensive analyses based on polyphasic characterization of GYP-24T indicated that it represents a novel species of a new genus, for which the name Gelatiniphilus marinus gen. nov., sp. nov. is proposed. The type strain is GYP-24T (=KCTC 42903T=MCCC 1K01730T). An emended description of the genus Hwangdonia is also given., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.001074