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Yu Q, He J, Zhao Q, Wang X, Zhi Y, Li X, Li X, Li L, Ge B. Regulation of nitrogen source for enhanced photobiological H2 production by co-culture of Chlamydomonas reinhardtii and Mesorhizobium sangaii. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Jung J, Seo YL, Kim KR, Park HY, Jeon CO. Mesorhizobium microcysteis sp. nov., isolated from a culture of Microcystis aeruginosa. Int J Syst Evol Microbiol 2021; 71. [PMID: 34214029 DOI: 10.1099/ijsem.0.004847] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strain MaA-C15T, a Gram-stain-negative, non-spore-forming and strictly aerobic bacterium, was isolated from a xenic culture of Microcystis aeruginosa in the Republic of Korea. Cells were motile rods showing positive reactions in catalase and oxidase tests. Growth was observed between 15 and 37 °C (optimum, 30 °C), between pH 6.0 and pH 11.0 (optimum, pH 7.5) and in the presence of 0-2.0 % (w/v) NaCl (optimum, 0 %). Strain MaA-C15T contained C16 : 0, 11-methyl-C18 : 1 ω7c, cyclo-C19 : 0 ω8c and summed feature 8 (C18 : 1 ω6c and/or C18 : 1 ω7c) as the major cellular fatty acids and ubiquinone-10 as the sole respiratory quinone. Phosphatidylethanolamine, phosphatidylmonomethylethanolamine, an unidentified aminophospholipid, an unidentified glycolipid and three unidentified phospholipids were detected as the major polar lipids. The G+C content of the genomic DNA was 64.1 mol%. Phylogenetic and phylogenomic analyses based on 16S rRNA gene and genome sequences revealed that strain MaA-C15T formed a phyletic lineage with Mesorhizobium sediminum YIM M12096T within the family Phyllobacteriaceae. Strain MaA-C15T was most closely related to Mesorhizobium albiziae DSM 21822T with a 98.2 % 16S rRNA sequence similarity. Average nucleotide identity and in silico DNA-DNA hybridization values between strain MaA-C15T and M. albiziae DSM 21822T were 75.4 and 20.1 %, respectively. Based on the results of phenotypic, chemotaxonomic and molecular analyses, strain MaA-C15T represents a novel species of the genus Mesorhizobium, for which the name Mesorhizobium microcysteis sp. nov. is proposed. The type strain is MaA-C15T (=KACC 21226T=JCM 33503T).
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Affiliation(s)
- Jaejoon Jung
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Ye Lin Seo
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Kyeong Ryeol Kim
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hye Yoon Park
- National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Che Ok Jeon
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
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Yang X, Jiang Z, Zhang J, Zhou X, Zhang X, Wang L, Yu T, Wang Z, Bei J, Dong B, Dai Z, Yang Q, Chen Z. Mesorhizobium alexandrii sp. nov., isolated from phycosphere microbiota of PSTs-producing marine dinoflagellate Alexandrium minutum amtk4. Antonie Van Leeuwenhoek 2020; 113:907-917. [PMID: 32193664 DOI: 10.1007/s10482-020-01400-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/04/2020] [Indexed: 11/26/2022]
Abstract
An aerobic, Gram-stain-negative, motile and rod-shaped bacterial strain, designated as Z1-4T, was isolated from the phycosphere microbiota of marine dinoflagellate Alexandrium minutum that produces paralytic shellfish poisoning toxins. Phylogenetic analysis based on 16S rRNA gene sequences showed that the new isolate belongs to the genus Mesorhizobium, and it was closely related to Mesorhizobium waimense LMG 28228T and Mesorhizobium amorphae LMG 18977T with both 16S rRNA gene sequence similarities of 97.3%. The values of average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) relatedness between strain Z1-4T and its relatives are both well below the thresholds used for the delineation of a new species. A genome-based phylogenetic tree constructed by up-to-date bacterial core gene set (UBCG) indicates that strain Z1-4T forms an independent branch within the genus Mesorhizobium. The respiratory quinone of strain Z1-4T was Q-10. The major fatty acids were similar to other members of the genus Mesorhizobium containing the summed feature 8, C16:0, C19:0cycloω8c, C17:0 and summed feature 3. The polar lipids are phosphatidylmonomethylethanolamine, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, an unidentified aminophospholipid, five glycolipids and seven unknown polar lipids. The DNA G + C content was determined to be 62.1 mol % based on its genomic sequence. Combined evidences based on the genotypic, chemotaxonomic and phenotypic characteristics clearly indicates that strain Z1-4T represents a novel species of the genus Mesorhizobium, for which the name Mesorhizobium alexandrii sp. nov. is proposed. The type strain is Z1-4T (= KCTC 72512T = CCTCC AB 2019101T).
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Affiliation(s)
- Xi Yang
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Zhiwei Jiang
- ABI Group, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316021, Zhejiang, People's Republic of China
| | - Jing Zhang
- Comprehensive Technology Service Center of Zhoushan Customs, Zhoushan, 316021, Zhejiang, People's Republic of China
| | - Xin Zhou
- ABI Group, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316021, Zhejiang, People's Republic of China
| | - Xiaoling Zhang
- ABI Group, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316021, Zhejiang, People's Republic of China
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, 316021, Zhejiang, People's Republic of China
| | - Lei Wang
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Ting Yu
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Zhilin Wang
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Jinlong Bei
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Bo Dong
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Zhangyan Dai
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China
| | - Qiao Yang
- ABI Group, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316021, Zhejiang, People's Republic of China.
| | - Zhuang Chen
- Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China.
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de Lajudie P, Martinez-Romero E. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium Minutes of the meeting, 7 September 2014, Tenerife, Spain. Int J Syst Evol Microbiol 2017; 67:516-520. [DOI: 10.1099/ijsem.0.001597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Philippe de Lajudie
- IRD, LSTM, Campus International de Baillarguet TA A-82/J, 34398 Montpellier Cédex 5, France
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