1
|
Ren XB, Cha QQ, Guo XH, He XY, Su HN, Qin QL, Song XY, Chen XL, Zhang YZ, Xu F, Zhang XY. Pelagovum pacificum gen. nov., sp. nov., a novel member of the family Rhodobacteraceae isolated from surface seawater of the Mariana Trench. Int J Syst Evol Microbiol 2020; 70:6155-6162. [PMID: 33052807 DOI: 10.1099/ijsem.0.004512] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, aerobic, ovoid-rod-shaped bacterium, designated strain SM1903T, was isolated from surface seawater of the Mariana Trench. The strain grew at 15-37 °C (optimum, 35 °C) and with 1-15 % (optimum, 4 %) NaCl. It hydrolysed aesculin but did not reduce nitrate to nitrite and hydrolyse Tween 80. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain SM1903T formed a separate lineage within the family Rhodobacteraceae, sharing the highest 16S rRNA gene sequence similarity with type strains of Pseudooceanicola antarcticus (95.7 %) and Roseisalinus antarcticus (95.7 %). In phylogenetic trees based on single-copy OCs and whole proteins sequences, strain SM1903T fell within a sub-cluster encompassed by Oceanicola granulosus, Roseisalinus antarcticus and Histidinibacterium lentulum and formed a branch adjacent to Oceanicola granulosus. The major cellular fatty acids were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c), C16 : 0 and 11-methyl-C18 : 1 ω7c. The polar lipids mainly comprised phosphatidylglycerol, phosphatidylcholine, one unidentified lipid, one unidentified aminolipid, and one unidentified glycolipid. The solo respiratory quinone was ubiquinone-10. The genomic DNA G+C content of strain SM1903T was 66.0 mol%. Based on the results of phenotypic, chemotaxonomic, and phylogenetic characterization for strain SM1903T, it is considered to represent a novel species of a novel genus in the family Rhodobacteraceae, for which the name Pelagovum pacificum gen. nov., sp. nov. is proposed. The type strain is SM1903T (=MCCC 1K03608T=KCTC 72046T).
Collapse
Affiliation(s)
- Xue-Bing Ren
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Qian-Qian Cha
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Xiao-Han Guo
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Xiao-Yan He
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Hai-Nan Su
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Qi-Long Qin
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, PR China.,State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Xiao-Yan Song
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Xiu-Lan Chen
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, PR China.,State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Yu-Zhong Zhang
- College of Marine Life Sciences, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, PR China.,Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, PR China.,State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Fei Xu
- State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Xi-Ying Zhang
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, PR China.,State Key Laboratory of Microbial Technology/Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| |
Collapse
|