Coraliomargarita algicola sp. nov., isolated from a marine green algaopen access
- Authors
- Lee, Jae Kyeong; Choi, Dae Gyu; Choi, Byeong Jun; Kim, Jeong Min; Jeon, Che Ok
- Issue Date
- May-2024
- Publisher
- Microbiology Society
- Keywords
- Coraliomargarita algicola; Verrucomicrobiota; marine green alga; new taxa
- Citation
- International journal of systematic and evolutionary microbiology, v.74, no.5
- Journal Title
- International journal of systematic and evolutionary microbiology
- Volume
- 74
- Number
- 5
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/73876
- DOI
- 10.1099/ijsem.0.006367
- ISSN
- 1466-5026
1466-5034
- Abstract
- A Gram-stain-negative, facultative aerobic, catalase- and oxidase-positive, non-motile, non-flagellated, and coccus-shaped bacterium, strain J2-16T, isolated from a marine green alga, was characterized taxonomically. Strain J2-16T grew at 20-40 °C (optimum, 30 °C), pH 6.0-10.0 (optimum, pH 7.0), and 1.0-4.0 % (w/v) NaCl (optimum, 3.0 %). Menaquinone-7 was identified as the sole respiratory quinone, and major fatty acids (>5 %) were C18 : 1  ω9c, iso-C14 : 0, C14 : 0, anteiso-C15 : 0, C18 : 0, C16 : 0, and C17 : 1  ω8c. The polar lipids of strain J2-16T consisted of phosphatidylglycerol, phosphatidylethanolamine, two unidentified phospholipids, and three unidentified lipids. The genome size of strain J2-16T was 5384 kb with a G+C content of 52.0 mol%. Phylogenetic analyses based on 16S rRNA gene and 120 protein marker sequences revealed that strain J2-16T formed a distinct phyletic lineage within the genus Coraliomargarita, closely related to Coraliomargarita sinensis WN38T and Coraliomargarita akajimensis DSM 45221T with 16S rRNA gene sequence similarities of 95.7 and 94.4 %, respectively. Average nucleotide identity and digital DNA-DNA hybridization values between strain J2-16T and Coraliomargarita species were lower than 71.2 and 20.0 %, respectively. The phenotypic, chemotaxonomic, and molecular features support that strain J2-16T represents a novel species of the genus Coraliomargarita, for which the name Coraliomargarita algicola sp. nov. is proposed. The type strain is J2-16T (=KACC 22590T=JCM 35407T).
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