{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:58:52Z","timestamp":1790769532117,"version":"4.1.0"},"reference-count":63,"publisher":"Microbiology Society","issue":"9","funder":[{"name":"Ministry of Oceans and Fisheries","award":["RS-2025-02220608"],"award-info":[{"award-number":["RS-2025-02220608"]}],"id":[{"id":"https:\/\/ror.org\/00c5s4a53","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,30]]},"abstract":"\n Two Gram-negative, orange-pigmented, strictly aerobic, rod-shaped, catalase- and oxidase-positive bacterial strains, designated M1\n T<\/jats:sup>\n and M15\n T<\/jats:sup>\n , were isolated from the green alga\n Ulva prolifera<\/jats:italic>\n collected in Muan Bay, Republic of Korea. Strain M1\n T<\/jats:sup>\n grew at 10\u201330\u2009\u00b0C (optimum, 25\u2009\u00b0C), pH 6\u20139 (optimum, pH 7), and in the presence of 1\u20136% (w\/v) NaCl (optimum, 3%), whereas strain M15\n T<\/jats:sup>\n grew at 10\u201330\u2009\u00b0C (optimum, 25\u2009\u00b0C), pH 6\u20138 (optimum, pH 7), and with 1\u20135% (w\/v) NaCl (optimum, 2%). The sole respiratory quinone in both strains is menaquinone-6. Major fatty acids in strain M1\n T<\/jats:sup>\n are iso-C\n 17\u200a:\u200a0<\/jats:sub>\n 3-OH (27.8%), iso-C\n 15\u200a:\u200a0<\/jats:sub>\n (20.8%), summed feature 9 (C\n 16\u200a:\u200a0<\/jats:sub>\n 10-methyl\/iso-C\n 17\u200a:\u200a1<\/jats:sub>\n \u2009\u03c99c; 17.2%), and iso-C\n 15\u200a:\u200a1<\/jats:sub>\n G (13.4%); in strain M15\n T<\/jats:sup>\n , they are iso-C\n 15\u200a:\u200a0<\/jats:sub>\n (27.3%), iso-C\n 15\u200a:\u200a0<\/jats:sub>\n 3-OH (16.0%), and C\n 15\u200a:\u200a1<\/jats:sub>\n \u2009\u03c96c (12.2%). The major polar lipids in strain M1\n T<\/jats:sup>\n were two unidentified aminolipids and seven unidentified lipids, whereas those in strain M15\n T<\/jats:sup>\n were phosphatidylethanolamine, one unidentified phospholipid, one unidentified aminophospholipid, and four unidentified lipids. Phylogenetic analyses based on 16S rRNA gene nucleotide sequences revealed that strains M1\n T<\/jats:sup>\n and M15\n T<\/jats:sup>\n were most closely related to\n Aquimarina muelleri<\/jats:italic>\n KMM 6020\n T<\/jats:sup>\n and\n Polaribacter reichenbachii<\/jats:italic>\n 6Alg 8\n T<\/jats:sup>\n with 96.5 and 98.3% nucleotide sequence identities, respectively. The genomes of strains M1\n T<\/jats:sup>\n and M15\n T<\/jats:sup>\n were 5.5\u2009Mb with a G+C content of 33.8 mol% and 4.1\u2009Mb with a G+C content of 30.6 mol%, respectively. The average nucleotide identity and digital DNA\u2013DNA hybridization values between the genomic sequences of strain M1\n T<\/jats:sup>\n and\n A. muelleri<\/jats:italic>\n KMM 6020\n T<\/jats:sup>\n were 74.2 and 19.4%, respectively, and between those of strain M15\n T<\/jats:sup>\n and\n P. reichenbachii<\/jats:italic>\n 6Alg 8\n T<\/jats:sup>\n were 82.0 and 25.8%, respectively. Based on the polyphasic data, strains M1\n T<\/jats:sup>\n and M15\n T<\/jats:sup>\n are considered to represent novel species in the genera\n Aquimarina<\/jats:italic>\n and\n Polaribacter<\/jats:italic>\n , respectively, for which the names\n Aquimarina ulvae<\/jats:italic>\n sp. nov. (M1\n T<\/jats:sup>\n =JCM 36757\n T<\/jats:sup>\n =KCTC 102217\n T<\/jats:sup>\n ) and\n Polaribacter litoreus<\/jats:italic>\n sp. nov. (M15\n T<\/jats:sup>\n =JCM 36759\n T<\/jats:sup>\n =KCTC 102246\n T<\/jats:sup>\n ) are proposed.\n <\/jats:p>","DOI":"10.1099\/ijsem.0.007257","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:16:53Z","timestamp":1790767013000},"source":"Crossref","is-referenced-by-count":0,"title":["Aquimarina ulvae sp. nov. and Polaribacter litoreus sp. nov., isolated from the green alga Ulva prolifera"],"prefix":"10.1099","volume":"76","author":[{"given":"Sylvia","family":"Kristyanto","sequence":"first","affiliation":[{"name":"Department of Marine Environmental Sciences, College of Natural Sciences, Chungnam National University, 99, Daehak-ro, Yuseong-gu. 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