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Huang WS, Wang LT, Chen JS, Chen YT, Wei STS, Chiang YR, Wang PL, Lee TH, Lin ST, Huang L, Shieh WY. Vibrio nitrifigilis sp. nov., a marine nitrogen-fixing bacterium isolated from the lagoon sediment of an islet inside an atoll. Antonie van Leeuwenhoek 2021; 114:933-945. [PMID: 33864545 DOI: 10.1007/s10482-021-01567-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 04/01/2021] [Indexed: 10/21/2022]
Abstract
A nitrogen-fixing isolate of facultatively anaerobic, marine bacterium, designated strain NFV-1T, was recovered from the lagoon sediment of Dongsha Island, Taiwan. It was a Gram-negative rod which exhibited motility with monotrichous flagellation in broth cultures. The strain required NaCl for growth and grew optimally at about 25-35 °C, 3% NaCl and pH 7-8. It grew aerobically and could achieve anaerobic growth by fermenting D-glucose or other carbohydrates as substrates. NH4Cl could serve as a sole nitrogen source for growth aerobically and anaerobically, whereas growth with N2 as the sole nitrogen source was observed only under anaerobic conditions. Cellular fatty acids were predominated by C16:1 ω7c, C16:0, and C18:1 ω7c. The major polar lipids consisted of phosphatidylethanolamine and phosphatidylserine. Strain NFV-1T had a DNA G + C content of 42.5 mol%, as evaluated according to the chromosomal DNA sequencing data. Analyses of sequence similarities and phylogeny based on the 16S rRNA genes, together with the housekeeping genes, gyrB, ftsZ, mreB, topA and gapA, indicated that the strain formed a distinct species-level lineage in the genus Vibrio of the family Vibrionaceae. These phylogenetic data and those from genomic and phenotypic characterisations support the establishment of a novel Vibrio species, for which the name Vibrio nitrifigilis sp. nov. (type strain NFV-1T = BCRC 81211T = JCM 33628T) is proposed.
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Affiliation(s)
- Wei-Sheng Huang
- Institute of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei, 10617, Taiwan
| | - Li-Ting Wang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, 331 Shih-Pin Rd., Hsinchu, 30062, Taiwan
| | - Jwo-Sheng Chen
- College of Health Care, China Medical University, No. 91, Shyue-Shyh Rd, Taichung, Taiwan
| | - Yen-Ting Chen
- Institute of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei, 10617, Taiwan
| | | | - Yin-Ru Chiang
- Biodiversity Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Pei-Ling Wang
- Institute of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei, 10617, Taiwan
| | - Tzong-Huei Lee
- Institute of Fisheries Science, National Taiwan University, Taipei, 10617, Taiwan
| | - Shih-Ting Lin
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, 331 Shih-Pin Rd., Hsinchu, 30062, Taiwan
| | - Lina Huang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, 331 Shih-Pin Rd., Hsinchu, 30062, Taiwan
| | - Wung Yang Shieh
- Institute of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei, 10617, Taiwan.
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Delroisse J, Van Wayneberghe K, Flammang P, Gillan D, Gerbaux P, Opina N, Todinanahary GGB, Eeckhaut I. Epidemiology of a SKin Ulceration Disease (SKUD) in the sea cucumber Holothuria scabra with a review on the SKUDs in Holothuroidea (Echinodermata). Sci Rep 2020; 10:22150. [PMID: 33335179 PMCID: PMC7746772 DOI: 10.1038/s41598-020-78876-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/18/2020] [Indexed: 01/04/2023] Open
Abstract
Aquacultivated sea cucumbers often suffer from SKin Ulceration Diseases (SKUDs). SKUDs have been observed in six holothuroid species from nine countries. All SKUDs present a similar symptom-the skin ulceration-and can be induced by bacteria, viruses, or abiotic factors. We here provide an update on SKUDs in holothuroids and analyse the case of the SKUD observed in Holothuria scabra in Madagascar. Field observations revealed a seasonality of the disease (i.e. wintertime maximum peak). Morphological analyses of integument ulcers showed that sea cucumbers react by forming a collagen fibre plug. Metagenomic analyses revealed a higher proportion of Vibrionaceae (Gammaproteobacteria) in ulcers in comparison to the healthy integument of the same individuals. Experimental infection assays were performed with ulcer crude extracts and bacteria isolated from these extracts (e.g. Vibrio parahaemolyticus) but did not significantly induce skin ulceration. Our results suggest that the disease is not induced by a pathogen or, at the very least, that the pathogen is not found within the ulcers as the disease is not transmissible by contact. An initial cause of the SKUD in Madagascar might be the repeated and prolonged exposures to cold temperatures. Opportunistic bacteria could settle in the dermis of ulcerated individuals and promote the ulcer extension. We propose a general nomenclature for SKUDs based on the acronym of the disease, the affected sea cucumber species (e.g. Hs for Holothuria scabra), the concerned region using an ISO code 3166-2 (e.g. MG for Madagascar), the description date (e.g. 20 for the year 2020), and, when known, the inducing agent (first letter of the general taxon, b for bacteria, v for virus in currently known cases; a a if it is an abiotic inducing parameter; nothing if the inducing cause has not been precisely identified). The disease described in this work will be designated under the name SKUD Hs-MG-20.
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Affiliation(s)
- Jérôme Delroisse
- Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium. .,Marine Station of Belaza, Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar.
| | - Kévin Van Wayneberghe
- Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium
| | - Patrick Flammang
- Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium
| | - David Gillan
- Proteomics and Microbiology Lab, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Lab, Interdisciplinary Center for Mass Spectrometry, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium
| | - Noel Opina
- Madagascar Holothurie (R&D of Indian Ocean Trepang), Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar
| | - Gildas Georges Boleslas Todinanahary
- Marine Station of Belaza, Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar.,Madagascar Holothurie (R&D of Indian Ocean Trepang), Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar
| | - Igor Eeckhaut
- Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons - UMONS, Place du Parc, 6, 7000, Mons, Belgium. .,Marine Station of Belaza, Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar. .,Madagascar Holothurie (R&D of Indian Ocean Trepang), Toliara, Route du Port Mahavatse II, P.O. Box 141, 601, Toliara, Madagascar.
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Characterization of multidrug resistance in Vibrio species isolated from marine invertebrates from Andaman Sea. 3 Biotech 2020; 10:456. [PMID: 33088653 DOI: 10.1007/s13205-020-02445-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022] Open
Abstract
This study describes the abundance of multidrug-resistant Vibrios associated with marine invertebrate hosts from the Andaman Sea, India. Thirty-eight Vibrio strains were isolated from surface mucus layers of coral Porites, Goniastrea, Pocillopora, Fungia, and eggs of spiny lobster (Panulirus penicillatus). Phenotypically, the majority of strains exhibited growth at a wide range of temperatures, salt tolerance, and diverse nutritional requirements. All the strains had more than 97% 16S rRNA sequence similarity with type species of the genus Vibrio where Vibrio fortis, and Vibrio alginolyticus were predominant. Multilocus Sequence Analysis (MLSA) using eight housekeeping genes namely ftsZ, gapA, gyrB, mreB, pyrH, recA, rpoA, and topA distributed the strains into 6 reported clades i.e., Harveyi, Ponticus, Nereis, Orientalis, Splendidus, and Mediterranei where nearly half of the total strains represented the clade Harveyi, followed by the clade Splendidus. Likewise, the PFGE profile indicated genomic heterogeneity among the strains resulting in their distribution in five major clusters. Resistance to different antimicrobials was tested following the disc diffusion method where all strains were found susceptible to chloramphenicol (30 µg) and resistant to streptomycin (10 µg), vancomycin (30 µg), sulfamethoxazole-trimethoprim (25 µg). Moreover, the resistant phenotype to other antimicrobials confirmed the abundance of multidrug resistance strains in this marine environment.
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Liu Y, Jin X, Wu C, Zhu X, Liu M, Call DR, Zhao Z. Genome-Wide Identification and Functional Characterization of β-Agarases in Vibrio astriarenae Strain HN897. Front Microbiol 2020; 11:1404. [PMID: 32670245 PMCID: PMC7326809 DOI: 10.3389/fmicb.2020.01404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/29/2020] [Indexed: 01/06/2023] Open
Abstract
The genus Vibrio is a genetically and metabolically versatile group of heterotrophic bacteria that are important contributors to carbon cycling within marine and estuarine ecosystems. HN897, a Vibrio strain isolated from the coastal seawater of South China, was shown to be agarolytic and capable of catabolizing D-galactose. Herein, we used Illumina and PacBio sequencing to assemble the whole genome sequence for the strain HN897, which was comprised of two circular chromosomes (Vas1 and Vas2). Genome-wide phylogenetic analysis with 140 other Vibrio sequences firmly placed the strain HN897 into the Marisflavi clade, with Vibrio astriarenae strain C7 being the closest relative. Of all types of carbohydrate-active enzyme classes, glycoside hydrolases (GH) were the most common in the HN897 genome. These included eight GHs identified as putative β-agarases belonging to GH16 and GH50 families in equal proportions. Synteny analysis showed that GH16 and GH50 genes were tandemly arrayed on two different chromosomes consistent with gene duplication. Gene knockout and complementation studies and phenotypic assays confirmed that Vas1_1339, a GH16_16 subfamily gene, exhibits an agarolytic phenotype of the strain. Collectively, these findings explained the agar-decomposing of strain HN897, but also provided valuable resources to gain more detailed insights into the evolution and physiological capability of the strain HN897, which was a presumptive member of the species V. astriarenae.
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Affiliation(s)
- Yupeng Liu
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Xingkun Jin
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Chao Wu
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Xinyuan Zhu
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Min Liu
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Douglas R Call
- Paul G Allen School for Global Animal Health, Washington State University, Pullman, WA, United States
| | - Zhe Zhao
- Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
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Xia X, Ki Leung S, Cheung S, Zhang S, Liu H. Rare bacteria in seawater are dominant in the bacterial assemblage associated with the Bloom-forming dinoflagellate Noctiluca scintillans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:135107. [PMID: 31818556 DOI: 10.1016/j.scitotenv.2019.135107] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/19/2019] [Accepted: 10/20/2019] [Indexed: 06/10/2023]
Abstract
Noctiluca scintillans is a bloom-forming dinoflagellate, which is widely distributed in the global coastal seas. Associated bacteria have been proven to be essential for the survival and growth of zooplanktons. However, the diversity and function of bacteria associated with Noctiluca scintillans are under studied and largely unknown. Here, we examined the diversity and function of bacteria associated with field-acquired and laboratory-maintained Noctiluca cells. Our results showed that the bacterial communities associated with the laboratory-maintained Noctiluca were dominated by Rhodobacterales, whereas those associated with the field-acquired Noctiluca varied over time. In addition, major Noctiluca-associated bacteria had low relative abundance in the ambient environment. We also observed that when field-acquired Noctiluca were cultivated with a mono-species food source, there was a shift in the associated bacterial communities. Metagenomic analysis showed that genes involved in DNA replication/repair and osmotic regulation were more abundant than other genes in the Noctiluca-associated bacterial community. Furthermore, the associated bacteria were able to degrade various complex carbohydrates and actively participate in the nitrogen cycle in their host cells. In addition, a draft genome of the Rickettsiaceae strain was recovered, and we showed that the genome did not contain genes encoding hexokinase and phosphoglucomutase, two key enzymes involved in glucose utilization. Instead, the primary energy sources of this bacteria were shown to be glutamate, glutamine and pyruvate, which might be obtained from the host. We suggest that in return, the Rickettsiaceae strain is likely to provide cofactors and amino acids to the host. This study highlights the spatial and temporal complexity of bacterial communities associated with Noctiluca, and provides valuable insights into the interaction between a host and its associated bacteria.
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Affiliation(s)
- Xiaomin Xia
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), PR China.
| | - Sze Ki Leung
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Shunyan Cheung
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Shuwen Zhang
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, College of Life Science, South China Normal University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, PR China
| | - Hongbin Liu
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China; Hong Kong Branch of Southern Marine Science & Engineering Guangdong Laboratory, The Hong Kong University of Science and Technology, Hong Kong, China.
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González-Castillo A, Enciso-Ibarrra J, Bolán-Mejia MC, Balboa S, Lasa A, Romalde JL, Cabanillas-Beltrán H, Gomez-Gil B. Vibrio mexicanus sp. nov., isolated from a cultured oyster Crassostrea corteziensis. Antonie van Leeuwenhoek 2015; 108:355-64. [DOI: 10.1007/s10482-015-0488-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 05/19/2015] [Indexed: 11/24/2022]
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Romalde JL, Dieguez AL, Lasa A, Balboa S. New Vibrio species associated to molluscan microbiota: a review. Front Microbiol 2014; 4:413. [PMID: 24427157 PMCID: PMC3877837 DOI: 10.3389/fmicb.2013.00413] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/16/2013] [Indexed: 01/22/2023] Open
Abstract
The genus Vibrio consists of more than 100 species grouped in 14 clades that are widely distributed in aquatic environments such as estuarine, coastal waters, and sediments. A large number of species of this genus are associated with marine organisms like fish, molluscs and crustaceans, in commensal or pathogenic relations. In the last decade, more than 50 new species have been described in the genus Vibrio, due to the introduction of new molecular techniques in bacterial taxonomy, such as multilocus sequence analysis or fluorescent amplified fragment length polymorphism. On the other hand, the increasing number of environmental studies has contributed to improve the knowledge about the family Vibrionaceae and its phylogeny. Vibrio crassostreae, V. breoganii, V. celticus are some of the new Vibrio species described as forming part of the molluscan microbiota. Some of them have been associated with mortalities of different molluscan species, seriously affecting their culture and causing high losses in hatcheries as well as in natural beds. For other species, ecological importance has been demonstrated being highly abundant in different marine habitats and geographical regions. The present work provides an updated overview of the recently characterized Vibrio species isolated from molluscs. In addition, their pathogenic potential and/or environmental importance is discussed.
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Affiliation(s)
- Jesús L. Romalde
- Departamento de Microbiología y Parasitología, CIBUS-Facultad de Biología, Universidad de Santiago de Compostela, Santiago de CompostelaSpain
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Chalkiadakis E, Dufourcq R, Schmitt S, Brandily C, Kervarec N, Coatanea D, Amir H, Loubersac L, Chanteau S, Guezennec J, Dupont-Rouzeyrol M, Simon-Colin C. Partial characterization of an exopolysaccharide secreted by a marine bacterium, Vibrio neocaledonicus sp. nov., from New Caledonia. J Appl Microbiol 2013; 114:1702-12. [PMID: 23480553 DOI: 10.1111/jam.12184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 02/24/2013] [Accepted: 03/04/2013] [Indexed: 12/01/2022]
Abstract
AIMS Exopolysaccharides (EPS) are industrially valuable molecules with numerous useful properties. This study describes the techniques used for the identification of a novel Vibrio bacterium and preliminary characterization of its EPS. METHODS AND RESULTS Bioprospection in marine intertidal areas of New Caledonia followed by screening for EPS producing brought to selection of the isolate NC470. Phylogenetic analysis (biochemical tests, gene sequencing and DNA-DNA relatedness) permitted to identify NC470 as a new member of the Vibrio genus. The EPS was produced in batch fermentation, purified using the ultrafiltration process and analysed by colorimetry, Fourier Transform Infrared spectroscopy, gas chromatography, Nuclear Magnetic Resonance and HPLC-size exclusion chromatography. This EPS exhibits a high N-acetyl-hexosamines and uronic acid content with a low amount of neutral sugar. The molecular mass was 672 × 10(3) Da. These data are relevant for possible technological exploitation. CONCLUSIONS We propose the name Vibrio neocaledonicus sp. nov for this isolate NC470, producing an EPS with an unusual sugar composition. Comparison with other known polymers permitted to select applications for this polymer. SIGNIFICANCE AND IMPACT OF THE STUDY This study contributes to evaluate the marine biodiversity of New Caledonia. It also highlights the biotechnological potential of New Caledonia marine bacteria.
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Lucena T, Ruvira MA, Arahal DR, Macián MC, Pujalte MJ. Vibrio aestivus sp. nov. and Vibrio quintilis sp. nov., related to Marisflavi and Gazogenes clades, respectively. Syst Appl Microbiol 2012; 35:427-31. [DOI: 10.1016/j.syapm.2012.08.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 08/03/2012] [Accepted: 08/10/2012] [Indexed: 11/25/2022]
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Chimetto LA, Cleenwerck I, Moreira APB, Brocchi M, Willems A, De Vos P, Thompson FL. Vibrio variabilis sp. nov. and Vibrio maritimus sp. nov., isolated from Palythoa caribaeorum. Int J Syst Evol Microbiol 2011; 61:3009-3015. [DOI: 10.1099/ijs.0.026997-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two novel vibrio isolates (R-40492T and R-40493T) originating from the zoanthid Palythoa caribaeorum in Brazil in 2005 were taxonomically characterized by means of a polyphasic approach comprising multilocus sequence analysis (MLSA), DNA–DNA hybridization (DDH), ΔT
m analysis and phenotypic characterization. Phylogenetic analysis based on 16S rRNA gene sequences showed that R-40492T and R-40493T fell within the genus Vibrio and were most closely related to each other with 99 % similarity; similarities of these two novel isolates towards Vibrio neptunius LMG 20536T, Vibrio coralliilyticus LMG 20984T, Vibrio nigripulchritudo LMG 3896T, Vibrio sinaloensis LMG 25238T and Vibrio brasiliensis LMG 20546T varied between 97.1 and 98.5 %. DDH experiments showed that the two isolates had less than 15 % relatedness to the phylogenetically most closely related Vibrio species. R-40492T and R-40493T had 55–57 % relatedness to each other. The ΔTm
between R-40492T and R-40493T was 6.12 °C. In addition, MLSA of concatenated sequences (16S rRNA, ftsZ, gyrB, recA, rpoA, topA, pyrH and mreB; 6035 bp in length) showed that the two novel isolates formed a separate branch with less than 92 % concatenated gene sequence similarity towards known species of vibrios. Two novel species are proposed to accommodate these novel isolates, namely Vibrio variabilis sp. nov. (type strain, R-40492T = LMG 25438T = CAIM 1454T) and Vibrio maritimus sp. nov. (type strain, R-40493T = LMG 25439T = CAIM 1455T).
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Affiliation(s)
- Luciane A. Chimetto
- BCCM/LMG Bacteria Collection, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ilse Cleenwerck
- BCCM/LMG Bacteria Collection, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Ana Paula B. Moreira
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Marcelo Brocchi
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Anne Willems
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Paul De Vos
- Laboratory of Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
- BCCM/LMG Bacteria Collection, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Fabiano L. Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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Gao ZM, Xiao J, Wang XN, Ruan LW, Chen XL, Zhang YZ. Vibrio xiamenensis sp. nov., a cellulase-producing bacterium isolated from mangrove soil. Int J Syst Evol Microbiol 2011; 62:1958-1962. [PMID: 22039001 DOI: 10.1099/ijs.0.033597-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A taxonomic study was carried out on a cellulase-producing bacterium, strain G21(T), isolated from mangrove soil in Xiamen, Fujian province, China. Cells were Gram-negative, slightly curved rods, motile with a single polar flagellum. The strain grew at 15-40 °C and in 0.5-10% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain G21(T) belonged to the genus Vibrio and formed a clade with Vibrio furnissii ATCC 350116(T) (97.4% sequence similarity), V. fluvialis LMG 7894(T) (97.1%) and V. ponticus CECT 5869(T) (96.1%). However, multilocus sequence analysis (using rpoA, recA, mreB, gapA, gyrB and pyrH sequences) and DNA-DNA hybridization experiments indicated that the strain was distinct from the closest related Vibrio species. Additionally, strain G21(T) could be differentiated from them phenotypically by the ability to grow in 10% NaCl but not on TCBS plates, its enzyme activity spectrum, citrate utilization, oxidization of various carbon sources, hydrolysis of several substrates and its cellular fatty acid profile. The G+C content of the genomic DNA was 46.0 mol%. The major cellular fatty acids were summed feature 3 (C(16:1)ω7c and/or iso-C(15:0) 2-OH), C(16:0) and C(18:1)ω7c. The major polar lipids were phosphatidylethanolamine and phosphatidylglycerol, with trace amounts of diphosphatidylglycerol. The predominant quinones were Q-8 and Q-7. Based on phylogenetic, phenotypic and chemotaxonomic characteristics and DNA-DNA hybridization analysis, it is concluded that strain G21(T) represents a novel species of the genus Vibrio, for which the name Vibrio xiamenensis sp. nov. is proposed. The type strain is G21(T) ( = DSM 22851(T) = CGMCC 1.10228(T)).
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Affiliation(s)
- Zhao-Ming Gao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, PR China.,The State Key Lab of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Jing Xiao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, PR China
| | - Xing-Na Wang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, PR China
| | - Ling-Wei Ruan
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, PR China
| | - Xiu-Lan Chen
- The State Key Lab of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
| | - Yu-Zhong Zhang
- The State Key Lab of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
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