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Microbiology and Biotechnology Letters

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Environmental Microbiology (EM)  |  Microbial Ecology and Diversity

Microbiol. Biotechnol. Lett. 2021; 49(3): 384-390

https://doi.org/10.48022/mbl.2104.04016

Received: April 27, 2021; Revised: May 10, 2021; Accepted: May 11, 2021

Aureivirga callyspongiae sp. nov., Isolated from Marine Sponge Callyspongia elegans

So Hyun Park1,2, Ji Young Kim1, and Moon Soo Heo2*

1Research Institute for Basic Sciences, 2Marine Pathogenic Microbes and Aquatic Disease Control Lab., Department of Aquatic Life Medicine, Jeju National University, Jeju 63243, Republic of Korea

Correspondence to :
MoonSoo Heo,    msheo@jejunu.ac.kr

A Gram-negative, aerobic, motile by gliding, and rod-shaped marine bacterium, designated CE67T was isolated from the marine sponge Callyspongia elegans on Biyang-do in Jeju Island. The CE67T strain grew optimally at 25℃, pH 7.5, and in the presence of 2−3% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain CE67T was related to the genus Aureivirga and had the highest 16S rRNA gene sequence similarity to the Aureivirga marina VIII.04T type strain (96.3%). The primary fatty acids (>10%) of strain CE67T were iso-C15:0 (35.3%) and iso-C17:0 3OH (21.8%). The polar lipid profile of strain CE67T contained phosphatidylethanolamine, unidentified aminolipids, and unidentified lipids. The predominant menaquinone was MK-6. The DNA G+C content was 29.1 mol%. Based on the polyphasic taxonomic analysis, strain CE67T was determined to be a representative novel species of the genus Aureivirga for which we propose the name Aureivirga callyspongiae sp. nov., whose strain type is CE67T (=KCTC 42847T =JCM 34566T).

Keywords: Aureivirga, marine sponge, novel species, taxonomy

Graphical Abstract


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