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A Novel Phosphorus-Recovering Bacterium Pelagibacterium mangrovi sp. nov., Isolated from Mangrove Sediment

文献类型： 外文期刊

作者： Yang, Shang 1 ; Liu, Guohong 2 ; Li, Ruili 3 ; Yu, Wei 4 ; Huang, Yuefei 1 ; Wu, Xiaofeng 1 ; Zhou, Shungui 5 ; Li, Bing 1 ;

作者机构： 1.Tsinghua Univ, Water Res Ctr, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China

2.Fujian Acad Agr Sci, Inst Resources Environm & Soil Fertilizer, Fuzhou 35003, Fujian, Peoples R China

3.Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen 518055, Peoples R China

4.Univ Auckland, Dept Chem & Mat Engn, Auckland 0926, New Zealand

5.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fujian Prov Key Lab Soil Environm Hlth & Regulat, Fuzhou 350002, Fujian, Peoples R China

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.6； 五年影响因子：2.6 ）

ISSN： 0343-8651

年卷期： 2025 年 82 卷 9 期

页码：

收录情况： SCI

摘要： An aerobic phosphorus-recovering strain, designated WS-203T, was isolated from mangrove sediment. Strain WS-203T showed the highest 16S rRNA gene sequence similarity to the type strain of Pelagibacterium lacus (98.1%). A phylogenetic tree based on 16S rRNA gene sequences indicated that strain WS-203T clustered with members of the genus Pelagibacterium. Growth of strain WS-203T was observed at 20-37 degrees C (optimum, 30 degrees C), pH 6.0-9.5 (optimum, pH 7.5) and with 0-9.0% (w/v) NaCl (optimum, 3.0%). Strain WS-203T contained Q-10 as the respiratory quinone and C18:1 omega 6c/C18:1 omega 7c and C19:0 omega 8c cyclo as the major fatty acids. The polar lipids detected in the strain were diphosphatidylglycerol, phosphatidylglycerol, two unidentified phospholipids, two unidentified lipids and four unidentified glycolipids. The genomic DNA G + C content of strain WS-203T was 62.2%. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain WS-203T and the closely related Pelagibacterium lacus were 78.6% and 21.7%, respectively, which were lower than the cut-off value (ANI 95-96% and dDDH 70%) for prokaryotic species delineation. On the basis of these results, strain WS-203T represents a novel species of the genus Pelagibacterium, for which the name Pelagibacterium mangrovi sp. nov. is proposed. The type strain is WS-203T (= GDMCC 1.4694T = KCTC 8652T).

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