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Abstract
A Gram-stain-negative, aerobic, rod-shaped, non-flagellated, non-gliding bacterial strain, designated MT50T, was isolated from a deep-sea sediment sample collected from the Mariana Trench. Optimal growth of strain MT50T was observed at 25 °C, pH 7.0–7.5 and in the presence of 3–5 % (w/v) NaCl. The strain was positive for oxidase and catalase. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain MT50T is affiliated with the genus Mesonia , showing the highest sequence similarity (98.5 %) to the type strain of Mesonia ostreae . The digital DNA–DNA hybridization and average nucleotide identity values between strain MT50T and four closely related type strains of known Mesonia species (14.1–54.8 % and 72.7–86.8 %, respectively) were all below the threshold values to discriminate bacterial species, indicating that strain MT50T is affiliated with a novel species within the genus. The genomic G+C content deduced from the genome of strain MT50T was 36.2 mol%. The major fatty acids of strain MT50T were iso-C15 : 0, iso-C17 : 0 3-OH and anteiso-C15 : 0. The predominant respiratory quinone of the strain was MK-6. The polar lipids of strain MT50T included phosphatidylethanolamine and two unidentified lipids. Based on the polyphasic data presented in this study, strain MT50T represents a novel species of the genus Mesonia , for which the name Mesonia profundi sp. nov. is proposed. The type strain is MT50T (=MCCC 1K07833T=KCTC 92380T).
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Funding
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the National Science Foundation of Shandong Province
(Award ZR2021QD071)
- Principle Award Recipient: NotApplicable
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the Taishan Scholars Program of Shandong Province, China
(Award tsqn202306092)
- Principle Award Recipient: NotApplicable
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the Taishan Scholar Foundation of Shandong Province, China
(Award tspd20181203)
- Principle Award Recipient: NotApplicable
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Major Scientific and Technological Innovation Project (MSTIP) of Shandong Province
(Award 2019JZZY010817)
- Principle Award Recipient: NotApplicable
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the Fundamental Research Funds for the Central Universities
(Award 202141006)
- Principle Award Recipient: NotApplicable
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the Fundamental Research Funds for the Central Universities
(Award 202041011)
- Principle Award Recipient: NotApplicable
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the Fundamental Research Funds for the Central Universities
(Award 202172002)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 42076151)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 31961133016)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 42106142)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 42076229)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 42276102)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 92251303)
- Principle Award Recipient: NotApplicable
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National Science Foundation of China
(Award 42176156)
- Principle Award Recipient: Hui-huiFu
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National Key Research and Development Program of China
(Award 2021YFA0909600)
- Principle Award Recipient: NotApplicable
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National Key Research and Development Program of China
(Award 2022YFC2807500)
- Principle Award Recipient: Hui-huiFu