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Updated: Apr 20, 2026

Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
Mucilaginibacter aquaedulcis sp. nov., isolated from fresh water
Yochan Joung1, Heeyoung Kang1, Beom-Il Lee1
1Department of Bioscience and Biotechnology, Hankuk University of Foreign Studies, Wangsan, Yongin, Gyeonggi 449-791, Republic of Korea.
Abstract:
An aerobic, Gram-stain-negative, rod-shaped bacterium, designated strain PGW1-R01(T), was isolated from fresh water from the Yeongju in the Republic of Korea. The strain grew optimally at 30 °C and at pH 6-8 on R2A agar. The major cellular fatty acids were summed feature 3 [comprising C16 : 1ω7c and/or C16 : 1ω6c (50.2 %) and iso-C15 : 0 (24.8 %)]. The major respiratory quinone was MK-7. The G+C contents were 39.4 mol% and the predominant respiratory quinone was MK-7. Based on 16S rRNA gene phylogeny, the strain belongs to the genus Mucilaginibacter. The strain PGW1-R01(T) was closely related to 'Mucilaginibacter ginsenosidivorax' (96.6 % sequence similarity), Mucilaginibacter lappiensis (96.4 %) and Mucilaginibacter flavus (96.4 %). On the basis of the evidence presented in this study, strain PGW1-R01(T) represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter http://dx.doi.org/10.1601/nm.11437aquaedulcis sp. nov., is proposed. The type strain is PGW1-R01(T)( = KCTC 23942(T) = CECT 8102(T)).
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