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Abstract
A Gram-stain-negative, aerobic, chemoheterotrophic and rod-shaped strain, designated as C5T, was isolated from intertidal surface seawater in Taizhou, Zhejiang Province, PR China and characterized using a polyphasic taxonomic approach. Strain C5T could produce carotenoids and bacteriochlorophyll a. Growth was observed at 20–45 °C, at pH 6.0–9.0 and with 0–8.0 % (w/v) NaCl. The 16S rRNA gene sequence identity analysis revealed that strain C5T was the most closely related to Qipengyuania nanhaisediminis CGMCC 1.7715T (98.8%) and Erythrobacter litoralis DSM 8509T (98.7%). The phylogenetic reconstruction based on core genes demonstrated that strain C5T was clustered into the members of the genus Erythrobacter . The average nucleotide identity and digital DNA–DNA hybridization values between strain C5T and Erythrobacter type strains were lower than 76 and 25 %, respectively. The predominant and minor respiratory quinones were identified as ubiquinone-10 and ubiquinone-9. The major fatty acids were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and iso-C18 : 0. Polar lipids included phosphatidylethanolamine, phosphatidylglycerol, a glycosphingolipid and an unidentified aminolipid. Based on the genetic, chemotaxonomic and phenotypic data, strain C5T is concluded to represent a novel species in the genus Erythrobacter , for which the name Erythrobacter aurantius sp. nov. is proposed. The type strain is C5T (=MCCC 1K05108T=KCTC 92307T).
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Funding
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Scientific Research Fund of the Second Institute of Oceanography, MNR
(Award JB2003)
- Principle Award Recipient: XuLin
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National Science and Technology Fundamental Resources Investigation Program of China
(Award 2021FY100900)
- Principle Award Recipient: XuLin
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China Postdoctoral Science Foundation
(Award 2019M652042)
- Principle Award Recipient: XuLin
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Natural Science Foundation of China
(Award 32000001)
- Principle Award Recipient: XuLin