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KMID : 0545120220320121553
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Journal of Microbiology and Biotechnology
2022 Volume.32 No. 12 p.1553 ~ p.1560
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Mucilaginibacter aquariorum sp. nov., Isolated from Fresh Water
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Le Ve Van
Ko So-Ra
Kang Min-Gyeong
Oh Hee-Mock
Ahn Chi-Yong
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Abstract
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A Gram-stain-negative, rod-shaped bacterial strain, JC4T, was isolated from a freshwater sample and determined the taxonomic position. Initial identification based on 16S rRNA gene sequences revealed that strain JC4T is affiliated to the genus Mucilaginibacter with a sequence similarity of 97.97% to Mucilaginibacter rigui WPCB133T. The average nucleotide identity and digital DNA?DNA hybridization values between strain JC4T and Mucilaginibacter species were estimated below 80.92% and 23.9%, respectively. Strain JC4T contained summed feature 3 (C16:1 ω7c and/or C16:1 ω6c) and iso-C15:0 as predominant cellular fatty acids. The dominant polar lipids were identified as phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified phospholipid, and two unidentified lipids. The respiratory quinone was MK-7. The genomic DNA G+C content of strain JC4T was determined to be 42.44%. The above polyphasic evidences support that strain JC4T represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter aquariorum sp. nov. is proposed. The type strain is JC4T (= KCTC 92230T = LMG 32715T).
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KEYWORD
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Mucilaginibacter aquariorum, fresh water, novel species
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