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Gao F, Li H, Tang K, Zhang T, Bao R, Feng F. Deinococcus rhizophilus sp.nov., isolated from rhizosphere soil. Int J Syst Evol Microbiol 2024; 74. [PMID: 38226562 DOI: 10.1099/ijsem.0.006232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024] Open
Abstract
A spherical, pink, aerobic, Gram-stain-positive bacterial strain (MIMF12T) was isolated from rhizosphere soil collected in the Inner Mongolia Autonomous Region, PR China. Cellular growth of the strain was observed at pH 6.0-8.0 (optimum, pH 7.0), at 20-37 °C (optimum, 28 °C) and with 0-1 % (w/v) NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain MIMF12T was most closely related to Deinococcus terrestris SDU3-2T with a similarity value of 96.0 %. The respiratory quinone was menaquinone 8, the major fatty acids were C15 : 1 ω6c and C17 : 1 ω8c, and the major polar lipids were composed of two aminophospholipids, one phospholipid and four unidentified lipids. The G+C content of the genomic DNA was 70.1 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strain MIMF12T and the closest related type strain SDU3-2T were 88.1 and 52.1 %, respectively. The discovery that MIMF12T differs not only from validly named species in the genus Deinococcus, but also from currently unnamed species in the GDTB, gives us new insights into the genus. Based on phenotypic, chemotaxonomic and phylogenetic characteristics, strain MIMF12T represents a novel species of the genus Deinococcus, for which the name Deinococcus rhizophilus sp. nov. is proposed. The type strain is MIMF12T (=CGMCC 1.61579T=KCTC 43572T).
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Affiliation(s)
- Fengzhi Gao
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
| | - Heng Li
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
| | - Kai Tang
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
| | - Tingting Zhang
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
| | - Runze Bao
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
| | - Fuying Feng
- Laboratory of Environmental Microbiology and Biotechnology in Arid and Cold Regions, College of Life Science, Inner Mongolia Agricultural University, Hohhot 010018, PR China
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Kim W, Jang S, Chae N, Kim M, Yeh JY, Kim S, Lee YM. Hymenobacter canadensis sp. nov., isolated from freshwater of the pond in Cambridge Bay, Canada. Int J Syst Evol Microbiol 2023; 73. [PMID: 37326606 DOI: 10.1099/ijsem.0.005913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023] Open
Abstract
A Gram-stain-negative, aerobic, reddish-coloured, rod-shaped and non-motile strain PAMC 29467T, was isolated from freshwater of the pond in Cambridge Bay, Canada. Strain PAMC 29467T was closely related to Hymenobacter yonginensis (98.1 % 16S rRNA gene similarity). Genomic relatedness analyses showed that strain PAMC 29467T is distinguishable from H. yonginensis based on average nucleotide identity (91.3 %) and digital DNA-DNA hybridization values (39.3 %). The major fatty acids (>10 %) of strain PAMC 29467T were summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C15 : 0 iso, C16 : 1 ω5c and summed feature 4 (C17 : 1 iso l and/or anteiso B). The major respiratory quinone was menaquinone-7. The genomic DNA G+C content was 61.5 mol%. Strain PAMC 29467T was separated from the type species in the genus Hymenobacter by its distinct phylogenetic position and some physiological characteristics. As a result, a novel species is proposed, with the name Hymenobacter canadensis sp. nov. (type strain, PAMC 29467T=KCTC 92787T=JCM 35843T).
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Affiliation(s)
- Woohyun Kim
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
- Department of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of Korea
| | - Seonghan Jang
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Namyi Chae
- Institutes of Life Sciences and Natural Resources, Korea University, Seoul 02841, Republic of Korea
| | - Mincheol Kim
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Jung-Yong Yeh
- Department of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of Korea
| | - Sanghee Kim
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Yung Mi Lee
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
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Ren T, Zhang C, Jin CZ, Jin FJ, Li T, Oh HM, Lee HG, Jin L. Description of Hymenobacter sediminicola sp. nov., isolated from contaminated sediment. Antonie Van Leeuwenhoek 2023:10.1007/s10482-023-01846-9. [PMID: 37237242 DOI: 10.1007/s10482-023-01846-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
A polyphasic taxonomic study was conducted on two Gram-negative, non-sporulating, non-motile bacterial strains, S2-20-2T and S2-21-1, isolated from a contaminated freshwater sediment in China. Comparative 16S rRNA gene sequence studies revealed a clear affiliation of two strains with Bacteroidetes, which showed the highest pairwise sequence similarities with Hymenobacter duratus BT646T (99.3%), Hymenobacter psychrotolerans Tibet-IIU11T (99.3%), Hymenobacter kanuolensis T-3T (97.6%), Hymenobacter swuensis DY53T (96.9%), Hymenobacter tenuis POB6T (96.8%), Hymenobacter seoulensis 16F7GT (96.7%), and Hymenobacter rigui KCTC 12533T (96.5%). The phylogenetic analysis based on 16S rRNA gene sequences showed that two strains formed a clear phylogenetic lineage with the genus Hymenobacter. Major fatty acids were identified as iso-C15:0, anteiso-C15:0, and summed feature 3 (C16:1 ω6c and/or C16:1 ω7c/t) and summed feature 4 (iso-C17:1 I and/or anteiso-C17:1 B). Major cellular polar lipids were identified as phosphatidylethanolamine, three unidentified aminolipids, an unidentified aminophosopholipid and an unidentified lipid. The respiratory quinone was detected as MK-7 and the genomic DNA G + C content was determined to be 57.9% (genome) for type strain S2-20-2T and 57.7 mol% (HPLC) for strain S2-21-1. The observed ANI and dDDH values between strain S2-20-2T and its closely related strains were 75.7-91.4% and 21.2-43.9%, respectively. Based on physiological, biochemical, genetic and genomic characteristics, we propose that strains S2-20-2T and S2-21-1 represent a novel species of the genus Hymenobacter, for which the name Hymenobacter sediminicola sp. nov. is proposed. The type strain is S2-20-2T (= CGMCC 1.18734T = JCM 35801T).
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Affiliation(s)
- Tingting Ren
- Co-Innovation Centre for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Chengxiao Zhang
- Co-Innovation Centre for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Chun-Zhi Jin
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Feng-Jie Jin
- Co-Innovation Centre for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Taihua Li
- Co-Innovation Centre for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Hee-Mock Oh
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Hyung-Gwan Lee
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Long Jin
- Co-Innovation Centre for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China.
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Park Y, Noh HJ, Hwang CY, Shin SC, Hong SG, Jin YK, Lee H, Lee YM. Hymenobacter siberiensis sp. nov., isolated from a marine sediment of the East Siberian Sea and Hymenobacter psoromatis sp. nov., isolated from an Antarctic lichen. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005290] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Gram-stain-negative, strictly aerobic, red-pink-coloured, rod-shaped and non-motile bacterial strains PAMC 29290, PAMC 29294T and PAMC 29296 were isolated from marine surface sediment sampled in the East Siberian Sea and strains PAMC 26553 and PAMC 26554T were obtained from an Antarctic lichen. Strains PAMC 29290, PAMC 29294T and PAMC 29296 were closely related to
Hymenobacter artigasi
(98.8 % 16S rRNA gene similarity),
Hymenobacter antarcticus
(97.3 %) and
Hymenobacter glaciei
(96.9 %), and PAMC 26553 and PAMC 26554T showed high similarity to
Hymenobacter ginsengisoli
(97.0 %),
Hymenobacter rivuli
(96.1 %) and
Hymenobacter setariae
(95.9 %). Genomic relatedness analyses showed that strains PAMC 29290, PAMC 29294T and PAMC 29296 could be distinguished from
H. artigasi
by average nucleotide identity (ANI; 93.1–93.2 %) and digital DNA–DNA hybridization (dDDH; 50.3–51.0 %) values. Strains PAMC 26553 and PAMC 26554T could be clearly distinguished from
H. ginsengisoli
with ANI values <79.8 % and dDDH values <23.3 %. The major fatty acids of strains PAMC 29290, PAMC 29294T and PAMC 29296 were C15 : 0 iso (21.0–26.0 %), summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c; 17.4–18.2 %), C15 : 0 anteiso (12.7–19.1 %) and summed feature 4 (C17 : 1 iso I and/or anteiso B; 8.6–16.1 %) and those of strains PAMC 26553 and PAMC 26554T were summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c; 20.7–22.2 %), C15 : 0 anteiso (17.5–19.7 %) and summed feature 4 (C17 : 1 iso I and/or anteiso B; 15.5–18.1 %). The major respiratory quinone was MK-7. The genomic DNA G+C contents were 60.6–60.8 mol%. The polar lipids of PAMC 29294T were found to consist of phosphatidylethanolamine, four unidentified aminolipids, an unidentified aminophospholipid and five unidentified lipids; those of PAMC 26554T were phosphatidylethanolamine, three unidentified aminolipids, four unidentified aminophospholipid and two unidentified lipids. The distinct phylogenetic position and some physiological characteristics distinguished the novel strains from closely related type strains in the genus
Hymenobacter
. Thus, two novel species are proposed, with the names Hymenobacter siberiensis sp. nov. (type strain, PAMC 29294T=KCTC 82466T=JCM 34574T) and Hymenobacter psoromatis sp. nov. (type strain, PAMC 26554T=KCTC 82464T=JCM 34572T), respectively.
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Affiliation(s)
- Yerin Park
- School of Earth and Environmental Sciences and Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Hyun-Ju Noh
- Division of Microbiology, Honam National Institute of Biological Resources, 99 Gohadoan-gil, Mokpo-si, Jeollanam-do, Republic of Korea
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Chung Yeon Hwang
- School of Earth and Environmental Sciences and Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Seung Chul Shin
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Soon Gyu Hong
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Young Keun Jin
- Division of Earth-System Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Hyoungseok Lee
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
| | - Yung Mi Lee
- Division of Life Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea
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Sedláček I, Holochová P, Busse HJ, Koublová V, Králová S, Švec P, Sobotka R, Staňková E, Pilný J, Šedo O, Smolíková J, Sedlář K. Characterisation of Waterborne Psychrophilic Massilia Isolates with Violacein Production and Description of Massilia antarctica sp. nov. Microorganisms 2022; 10:microorganisms10040704. [PMID: 35456753 PMCID: PMC9028926 DOI: 10.3390/microorganisms10040704] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022] Open
Abstract
A group of seven bacterial strains producing blue-purple pigmented colonies on R2A agar was isolated from freshwater samples collected in a deglaciated part of James Ross Island and Eagle Island, Antarctica, from 2017–2019. The isolates were psychrophilic, oligotrophic, resistant to chloramphenicol, and exhibited strong hydrolytic activities. To clarify the taxonomic position of these isolates, a polyphasic taxonomic approach was applied based on sequencing of the 16S rRNA, gyrB and lepA genes, whole-genome sequencing, rep-PCR, MALDI-TOF MS, chemotaxonomy analyses and biotyping. Phylogenetic analysis of the 16S rRNA gene sequences revealed that the entire group are representatives of the genus Massilia. The closest relatives of the reference strain P8398T were Massilia atriviolacea, Massilia violaceinigra, Massilia rubra, Massilia mucilaginosa, Massilia aquatica, Massilia frigida, Massilia glaciei and Massilia eurypsychrophila with a pairwise similarity of 98.6–100% in the 16S rRNA. The subsequent gyrB and lepA sequencing results showed the novelty of the analysed group, and the average nucleotide identity and digital DNA–DNA hybridisation values clearly proved that P8398T represents a distinct Massilia species. After all these results, we nominate a new species with the proposed name Massilia antarctica sp. nov. The type strain is P8398T (= CCM 8941T = LMG 32108T).
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Affiliation(s)
- Ivo Sedláček
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
- Correspondence: ; Tel.: +420-549-496-922
| | - Pavla Holochová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria;
| | - Vendula Koublová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
| | - Stanislava Králová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
| | - Pavel Švec
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
| | - Roman Sobotka
- Centrum Algatech, Institute of Microbiology, Czech Academy of Sciences, Opatovický mlýn, 379 01 Třeboň, Czech Republic; (R.S.); (J.P.)
| | - Eva Staňková
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (P.H.); (V.K.); (S.K.); (P.Š.); (E.S.)
| | - Jan Pilný
- Centrum Algatech, Institute of Microbiology, Czech Academy of Sciences, Opatovický mlýn, 379 01 Třeboň, Czech Republic; (R.S.); (J.P.)
| | - Ondrej Šedo
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic;
| | - Jana Smolíková
- Department of Physical Geography and Geoecology, Faculty of Science, Charles University, Albertov 6, 128 00 Praha, Czech Republic;
| | - Karel Sedlář
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 12, 616 00 Brno, Czech Republic;
- Institute of Bioinformatics, Department of Informatics, Ludwig-Maximilians-Universität München, Amalienstraße 17, 803 33 Munich, Germany
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Chen Y, Zhu L, Bai P, Cui S, Xin Y, Zhang Y, Zhang J. Hymenobacter terricola sp. nov., isolated from Antarctic soil. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005205] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strain 3F2T was isolated from a soil sample obtained from the surface of Deception Island, Antarctica. The isolate was a Gram-stain-negative, aerobic, non-motile, rod-shaped bacterium, and its colonies were red to pink in colour. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 3F2T belonged to the genus
Hymenobacter
, family
Hymenobacteraceae
and was most closely related to
Hymenobacter sedentarius
DG5BT (97.0% sequence similarity),
Hymenobacter soli
PB17T (96.9%),
Hymenobacter terrae
DG7AT (96.8%) and
Hymenobacter rufus
S1-2-2-6T (96.5%). Growth occurred at 4–20 °C (optimum, 10 °C), up to 1.0 % (w/v) NaCl (optimum, 0%) and pH 6.0–8.0 (optimum, pH 7.0). The chemotaxonomic characteristics of strain 3F2T, which had MK-7 as its predominant menaquinone and summed feature 3 (C16:1
ω7c and/or C16:1
ω6c), iso-C15:0, anteiso-C15:0 and C16:1
ω5c as its major fatty acids, were consistent with classification in the genus
Hymenobacter
. The polar lipid profile of strain 3F2T comprised phosphatidylethanolamine, two unidentified aminolipids, two unidentified aminophospholipids and three unidentified polar lipids. The genome of strain 3F2T was 6.56 Mbp with a G+C content of 61.5 mol%. Average nucleotide identity (ANI) values between 3F2T and the other species of the genus
Hymenobacter
were found to be low (ANIm <87.0%, ANIb <82.0% and OrthoANIu <83.0%). Furthermore, digital DNA–DNA hybridization and average amino acid identity values between strain 3F2T and the closely related species ranged from 20.0 to 26.3% and from 64.0 to 81.1 %, respectively. Based on the results of our phylogenetic, phenotypic, genotypic and chemotaxonomic analyses, it is concluded that strain 3F2T represents a novel species within the genus
Hymenobacter
, for which the name Hymenobacter terricola sp. nov. is proposed. The type strain is 3F2T (=KCTC 72468T=CGMCC 1.13716T).
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Affiliation(s)
- Ya Chen
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Lin Zhu
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Pengze Bai
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Siqi Cui
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Yuhua Xin
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ying Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Jianli Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
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Sedláček I, Holochová P, Sobotka R, Busse HJ, Švec P, Králová S, Šedo O, Pilný J, Staňková E, Koublová V, Sedlář K. Classification of a Violacein-Producing Psychrophilic Group of Isolates Associated with Freshwater in Antarctica and Description of Rugamonas violacea sp. nov. Microbiol Spectr 2021; 9:e0045221. [PMID: 34378950 PMCID: PMC8552646 DOI: 10.1128/spectrum.00452-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 07/07/2021] [Indexed: 11/20/2022] Open
Abstract
A group of 11 bacterial strains was isolated from streams and lakes located in a deglaciated northern part of James Ross Island, Antarctica. They were rod-shaped, Gram-stain-negative, motile, and catalase-positive and produced blue-violet-pigmented colonies on R2A agar. A polyphasic taxonomic approach based on 16S rRNA gene sequencing, whole-genome sequencing, automated ribotyping, repetitive element sequence-based PCR (rep-PCR), MALDI-TOF MS, fatty acid profile, chemotaxonomy analyses, and extensive biotyping was applied in order to clarify the taxonomic position of these isolates. Phylogenetic analysis based on the 16S rRNA gene indicated that all the isolates constituted a coherent group belonging to the genus Rugamonas. The closest relatives to the representative isolate P5900T were Rugamonas rubra CCM 3730T, Rugamonas rivuli FT103WT, and Rugamonas aquatica FT29WT, exhibiting 99.2%, 99.1%, and 98.6% 16S rRNA pairwise similarity, respectively. The average nucleotide identity and digital DNA-DNA hybridization values calculated from the whole-genome sequencing data clearly proved that P5900T represents a distinct Rugamonas species. The G+C content of genomic DNAs was 66.1 mol%. The major components in fatty acid profiles were summed feature 3 (C16:1ω7c/C16:1ω6c), C 16:0, and C12:0. The cellular quinone content contained exclusively ubiquinone Q-8. The predominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine. The polyamine pattern was composed of putrescine, 2-hydroxputrescine, and spermidine. IMPORTANCE Our polyphasic approach provides a new understanding of the taxonomy of novel pigmented Rugamonas species isolated from freshwater samples in Antarctica. The isolates showed considerable extracellular bactericidal secretions. The antagonistic activity of studied isolates against selected pathogens was proved by this study and implied the importance of such compounds' production among aquatic bacteria. The psychrophilic and violacein-producing species Roseomonas violacea may play a role in the diverse consortium among pigmented bacteria in the Antarctic water environment. Based on all the obtained results, we propose a novel species for which the name Rugamonas violacea sp. nov. is suggested, with the type strain P5900T (CCM 8940T; LMG 32105T). Isolates of R. violacea were obtained from different aquatic localities, and they represent the autochthonous part of the water microbiome in Antarctica.
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Affiliation(s)
- Ivo Sedláček
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Pavla Holochová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | | | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, Vienna, Austria
| | - Pavel Švec
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Stanislava Králová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Ondrej Šedo
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Jan Pilný
- Centrum Algatech, MBÚ AV ČR, Třeboň, Czech Republic
| | - Eva Staňková
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Vendula Koublová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Karel Sedlář
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech Republic
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Roldán DM, Kyrpides N, Woyke T, Shapiro N, Whitman WB, Králová S, Sedláček I, Busse HJ, Menes RJ. Hymenobacter caeli sp. nov., an airborne bacterium isolated from King George Island, Antarctica. Int J Syst Evol Microbiol 2021; 71. [PMID: 34152267 DOI: 10.1099/ijsem.0.004838] [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
A rod-shaped and Gram-stain-negative bacterial strain 9AT, was isolated from an air sample collected at King George Island, maritime Antarctica. Phylogenetic analysis based on 16S rRNA gene sequence reveals that strain 9AT belongs to the genus Hymenobacter and shows the highest similarity to Hymenobacter coccineus CCM 8649T (96.8 %). The DNA G+C content based on the draft genome sequence is 64.9 mol%. Strain 9AT is strictly aerobic, psychrophilic, catalase-positive, oxidase-positive and non-motile. Growth is observed at 0-20 °C (optimum 10 °C), pH 6.0-8.0 (optimum pH 7.0), and in the absence of NaCl. The predominant menaquinone of strain 9AT is MK-7 and the major fatty acids comprise Summed Feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c; 25.2 %), iso-C15 : 0 (23.2 %), C16 : 1 ω5c (11.6 %), Summed Feature 4 (anteiso-C17 : 1 B/iso-C17 : 1 I) (9.6 %) and anteiso-C15 : 0 (9.6 %). The polar lipid profile consists of the major lipid phosphatidylethanolamine and moderate to minor amounts of phosphatidylserine, unidentified aminolipids, aminophospholipids, aminophosphoglycolipids, polar lipids lacking a functional group and an unidentified phospholipid and a glycolipid. In the polyamine pattern sym-homospermidine is predominant. On the basis of the results obtained, strain 9AT is proposed as a novel species of the genus Hymenobacter, for which the name Hymenobacter caeli sp. nov. is suggested. The type strain is 9AT (=CCM 8971T=LMG 32109T=DSM 111653T).
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Affiliation(s)
- Diego M Roldán
- Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química y Unidad Asociada del Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | | | | | | | - William B Whitman
- Microbiology Department, University of Georgia, Athens, Georgia, USA
| | - Stanislava Králová
- Department of Experimental Biology, Czech Collection of Microorganisms, Masaryk University, Brno, Czech Republic
| | - Ivo Sedláček
- Department of Experimental Biology, Czech Collection of Microorganisms, Masaryk University, Brno, Czech Republic
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, Wien, Austria
| | - Rodolfo Javier Menes
- Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química y Unidad Asociada del Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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9
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Silva TRE, Silva LCF, de Queiroz AC, Alexandre Moreira MS, de Carvalho Fraga CA, de Menezes GCA, Rosa LH, Bicas J, de Oliveira VM, Duarte AWF. Pigments from Antarctic bacteria and their biotechnological applications. Crit Rev Biotechnol 2021; 41:809-826. [PMID: 33622142 DOI: 10.1080/07388551.2021.1888068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pigments from microorganisms have triggered great interest in the market, mostly by their "natural" appeal, their favorable production conditions, in addition to the potential new chemical structures or naturally overproducing strains. They have been used in: food, feed, dairy, textile, pharmaceutical, and cosmetic industries. The high rate of pigment production in microorganisms recovered from Antarctica in response to selective pressures such as: high UV radiation, low temperatures, and freezing and thawing cycles makes this a unique biome which means that much of its biological heritage cannot be found elsewhere on the planet. This vast arsenal of pigmented molecules has different functions in bacteria and may exhibit different biotechnological activities, such as: extracellular sunscreens, photoprotective function, antimicrobial activity, biodegradability, etc. However, many challenges for the commercial use of these compounds have yet to be overcome, such as: the low stability of natural pigments in cosmetic formulations, the change in color when subjected to pH variations, the low yield and the high costs in their production. This review surveys the different types of natural pigments found in Antarctic bacteria, classifying them according to their chemical structure. Finally, we give an overview of the main pigments that are used commercially today.
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Affiliation(s)
- Tiago Rodrigues E Silva
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrárias, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | | | | | | | | | | | - Luiz Henrique Rosa
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliano Bicas
- Departamento de Ciência de Alimentos, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
| | - Valéria Maia de Oliveira
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrárias, Universidade Estadual de Campinas, UNICAMP, Campinas, Brazil
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10
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Sedláček I, Pantůček R, Zeman M, Holochová P, Šedo O, Staňková E, Švec P, Králová S, Vídeňská P, Micenková L, Korpole S, Lal R. Hymenobacter terrestris sp. nov. and Hymenobacter lapidiphilus sp. nov., isolated from regoliths in Antarctica. Int J Syst Evol Microbiol 2021; 70:6364-6372. [PMID: 33599603 DOI: 10.1099/ijsem.0.004540] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A group of four psychrotrophic bacterial strains was isolated on James Ross Island (Antarctica) in 2013. All isolates, originating from different soil samples, were collected from the ice-free northern part of the island. They were rod-shaped, Gram-stain-negative, and produced moderately slimy red-pink pigmented colonies on R2A agar. A polyphasic taxonomic approach based on 16S rRNA gene sequencing, whole-genome sequencing, MALDI-TOF MS, rep-PCR analyses, chemotaxonomic methods and extensive biotyping was used to clarify the taxonomic position of these isolates. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolates belonged to the genus Hymenobacter. The closest relative was Hymenobacter humicola CCM 8763T, exhibiting 98.3 and 98.9% 16S rRNA pairwise similarity with the reference isolates P5342T and P5252T, respectively. Average nucleotide identity, digital DNA-DNA hybridization and core gene distances calculated from the whole-genome sequencing data confirmed that P5252T and P5342T represent two distinct Hymenobacter species. The menaquinone systems of both strains contained MK-7 as the major respiratory quinone. The predominant polar lipids for both strains were phosphatidylethanolamine and one unidentified glycolipid. The major components in the cellular fatty acid composition were summed feature 3 (C16:1 ω7c/C16:1ω6c), C16:1ω5c, summed feature 4 (anteiso-C17:1 B/iso-C17:1 I), anteiso-C15:0 and iso-C15 : 0 for all isolates. Based on the obtained results, two novel species are proposed, for which the names Hymenobacter terrestris sp. nov. (type strain P5252T=CCM 8765T=LMG 31495T) and Hymenobacter lapidiphilus sp. nov. (type strain P5342T=CCM 8764T=LMG 30613T) are suggested.
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Affiliation(s)
- Ivo Sedláček
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Roman Pantůček
- Department of Experimental Biology, Section of Genetics and Molecular Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Michal Zeman
- Department of Experimental Biology, Section of Genetics and Molecular Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Pavla Holochová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Ondrej Šedo
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Eva Staňková
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Pavel Švec
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Stanislava Králová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Petra Vídeňská
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Lenka Micenková
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Suresh Korpole
- Microbial Type Culture Collection and Gene Bank (MTCC), CSIR - Institute of Microbial Technology, Sector 39A, Chandigarh 160 036, India
| | - Rup Lal
- The Energy and Resources Institute, Lodhi Road, New Delhi - 110003, India
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11
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Holochová P, Mašlaňová I, Sedláček I, Švec P, Králová S, Kovařovic V, Busse HJ, Staňková E, Barták M, Pantůček R. Description of Massilia rubra sp. nov., Massilia aquatica sp. nov., Massilia mucilaginosa sp. nov., Massilia frigida sp. nov., and one Massilia genomospecies isolated from Antarctic streams, lakes and regoliths. Syst Appl Microbiol 2020; 43:126112. [PMID: 32847787 DOI: 10.1016/j.syapm.2020.126112] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/24/2022]
Abstract
Bacteria of the genus Massilia often colonize extreme ecosystems, however, a detailed study of the massilias from the Antarctic environment has not yet been performed. Here, sixty-four Gram-stain-negative, aerobic, motile rods isolated from different environmental samples on James Ross Island (Antarctica) were subjected to a polyphasic taxonomic study. The psychrophilic isolates exhibited slowly growing, moderately slimy colonies revealing bold pink-red pigmentation on R2A agar. The set of strains exhibited the highest 16S rRNA gene sequence similarities (99.5-99.9%) to Massilia violaceinigra B2T and Massilia atriviolacea SODT and formed several phylogenetic groups based on the analysis of gyrB and lepA genes. Phenotypic characteristics allowed four of them to be distinguished from each other and from their closest relatives. Compared to the nearest phylogenetic neighbours the set of six genome-sequenced representatives exhibited considerable phylogenetic distance at the whole-genome level. Bioinformatic analysis of the genomic sequences revealed a high number of putative genes involved in oxidative stress response, heavy-metal resistance, bacteriocin production, the presence of putative genes involved in nitrogen metabolism and auxin biosynthesis. The identification of putative genes encoding aromatic dioxygenases suggests the biotechnology potential of the strains. Based on these results four novel species and one genomospecies of the genus Massilia are described and named Massilia rubra sp. nov. (P3094T=CCM 8692T=LMG 31213T), Massilia aquatica sp. nov. (P3165T=CCM 8693T=LMG 31211T), Massilia mucilaginosa sp. nov. (P5902T=CCM 8733T=LMG 31210T), and Massilia frigida sp. nov. (P5534T=CCM 8695T=LMG 31212T).
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Affiliation(s)
- Pavla Holochová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Ivana Mašlaňová
- Department of Experimental Biology, Section of Genetics and Molecular Biology, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic
| | - Ivo Sedláček
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Pavel Švec
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Stanislava Králová
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Vojtěch Kovařovic
- Department of Experimental Biology, Section of Genetics and Molecular Biology, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, A-1210 Wien, Austria
| | - Eva Staňková
- Department of Experimental Biology, Czech Collection of Microorganisms, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Miloš Barták
- Department of Experimental Biology, Section of Experimental Plant Biology, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Roman Pantůček
- Department of Experimental Biology, Section of Genetics and Molecular Biology, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic.
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12
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Roldán DM, Kyrpides N, Woyke T, Shapiro N, Whitman WB, Králová S, Sedláček I, Busse HJ, Menes RJ. Hymenobacter artigasi sp. nov., isolated from air sampling in maritime Antarctica. Int J Syst Evol Microbiol 2020; 70:4935-4941. [PMID: 32744985 DOI: 10.1099/ijsem.0.004362] [Citation(s) in RCA: 8] [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
A rod-shaped and Gram-stain-negative bacterial strain, 1BT, was isolated from an air sample collected at King George Island, maritime Antarctica. Strain 1BT is strictly aerobic, psychrophilic, catalase-positive, oxidase-positive and non-motile. Growth of strain 1BT is observed at 0-20 °C (optimum, 10 °C), pH 6.0-8.0 (optimum, pH 8.0) and in the presence of 0-1.0% NaCl (optimum, 0.5 % NaCl). Phylogenetic analysis based on 16S rRNA gene sequences places strain 1BT within the genus Hymenobacter and shows the highest similarity to Hymenobacter antarcticus VUG-A42aaT (97.5 %). The predominant menaquinone of strain 1BT is MK-7 and the major fatty acids (>10 %) comprise summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c; 32.5 %), iso-C15 : 0 (17.6 %) and anteiso C15 : 0 (12.3 %). The polar lipid profile consists of the major compounds phosphatidylethanolamine, phosphatidylserine, two unidentified aminolipids and one unidentified phospholipid. The DNA G+C content based on the draft genome sequence is 61.2 mol%. Based on the data from the current polyphasic study, 1BT represents a novel species of the genus Hymenobacter, for which the name Hymenobacter artigasi sp. nov. is suggested. The type strain is 1BT (=CCM 8970T=CGMCC 1.16843T).
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Affiliation(s)
- Diego M Roldán
- Laboratorio de Ecología Microbiana Medioambiental, Microbiología, Facultad de Química y Unidad Asociada del Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Nikos Kyrpides
- DOE Joint Genomics Institute, Walnut Creek, CA 94598, USA
| | - Tanja Woyke
- DOE Joint Genomics Institute, Walnut Creek, CA 94598, USA
| | - Nicole Shapiro
- DOE Joint Genomics Institute, Walnut Creek, CA 94598, USA
| | - William B Whitman
- Microbiology Department, University of Georgia, Athens, GA 30602, USA
| | - Stanislava Králová
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czechia
| | - Ivo Sedláček
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czechia
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria
| | - Rodolfo Javier Menes
- Laboratorio de Ecología Microbiana Medioambiental, Microbiología, Facultad de Química y Unidad Asociada del Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Uruguay
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13
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Nováková D, Švec P, Zeman M, Busse HJ, Mašlaňová I, Pantůček R, Králová S, Krištofová L, Sedláček I. Pseudomonas leptonychotis sp. nov., isolated from Weddell seals in Antarctica. Int J Syst Evol Microbiol 2020; 70:302-308. [PMID: 31617844 DOI: 10.1099/ijsem.0.003753] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A taxonomic study was carried out on four Gram-stain-negative strains P5773T, P6169, P4708 and P6245, isolated from anus or mouth samples of Weddell seals at James Ross Island, Antarctica. The results of initial 16S rRNA gene sequence analysis showed that all four strains formed a group placed in the genus Pseudomonas and found Pseudomonas guineae and Pseudomonas peli to be their closest neighbours with 99.9 and 99.2 % sequence similarity, respectively. Sequence analysis of rpoD, rpoB and gyrB housekeeping genes confirmed the highest similarity of isolates to P. peli (rpoD) and to P. guineae (rpoB and gyrB). The average nucleotide identity value below 86 %, as calculated from the whole-genome sequence data, showed the low genomic relatedness of P5773T to its phylogenetic neighbours. The complete genome of strain P5773T was 4.4 Mb long and contained genes encoding proteins with biotechnological potential. The major fatty acids of the seal isolates were summed feature 8 (C18 : 1 ω7c), summed feature 3 (C16 : 1 ω 7 c/C16 : 1 ω6c) and C16:0. The major respiratory quinone was Q9. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Putrescine and spermidine are predominant in the polyamine pattern. Further characterization performed using repetitive sequence-based PCR fingerprinting and MALDI-TOF MS analysis showed that the studied isolates formed a coherent cluster separated from the remaining Pseudomonas species and confirmed that they represent a novel species within the genus Pseudomonas, for which the name Pseudomonas leptonychotis sp. nov. is suggested. The type strain is P5773T (=CCM 8849T=LMG 30618T).
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Affiliation(s)
- Dana Nováková
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Pavel Švec
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Michal Zeman
- Section of Genetics and Molecular Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Hans-Jürgen Busse
- Institute of Microbiology, University of Veterinary Medicine Vienna, A-1210 Vienna, Austria
| | - Ivana Mašlaňová
- Section of Genetics and Molecular Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Roman Pantůček
- Section of Genetics and Molecular Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Stanislava Králová
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Lucie Krištofová
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Ivo Sedláček
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
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Sedláček I, Pantůček R, Holochová P, Králová S, Staňková E, Vrbovská V, Šedo O, Švec P, Busse HJ. Hymenobacter humicola sp. nov., isolated from soils in Antarctica. Int J Syst Evol Microbiol 2019; 69:2755-2761. [PMID: 31237531 DOI: 10.1099/ijsem.0.003555] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A set of three psychrotrophic bacterial strains was isolated from different soil samples collected at the deglaciated northern part of James Ross Island (Antarctica) in 2014. All isolates were rod-shaped, Gram-stain-negative, non-motile, catalase-positive and oxidase-negative, and produced moderately slimy red-pink pigmented colonies on Reasoner's 2A (R2A) agar. A polyphasic taxonomic approach based on 16S rRNA gene sequencing, whole-genome sequencing, automated ribotyping, MALDI-TOF MS, chemotaxonomy methods and extensive biotyping using conventional tests and commercial identification kits was applied to the isolates in order to clarify their taxonomic position. Phylogenetic analysis based on the 16S rRNA gene showed that all isolates belonged to the genus Hymenobacter with the closest relative being Hymenobacter aerophilus DSM 13606T, exhibiting 98.5 % 16S rRNA gene pairwise similarity to the reference isolate P6312T. Average nucleotide identity values calculated from the whole-genome sequencing data proved that P6312T represents a distinct Hymenobacter species. The major components of the cellular fatty acid composition were summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c), C16 : 1 ω5c, summed feature 4 (C17 : 1 anteiso B/iso I), C15 : 0 anteiso and C15 : 0 iso. The menaquinone system of strain P6312T contained MK-7 as the major respiratory quinone. The predominant polar lipids were phosphatidylethanolamine and an unidentified phospholipid. Moderate to minor amounts of three unidentified polar lipids, four unidentified aminophospholipids, one unidentified glycolipid and one unidentified phospholipid were also present. Based on the obtained results, we propose a novel species for which the name Hymenobacterhumicola sp. nov. is suggested, with the type strain P6312T (=CCM 8763T=LMG 30612T).
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Affiliation(s)
- Ivo Sedláček
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Roman Pantůček
- Section of Genetics and Molecular Biology, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Pavla Holochová
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Stanislava Králová
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Eva Staňková
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Veronika Vrbovská
- Section of Genetics and Molecular Biology, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Ondrej Šedo
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Pavel Švec
- Czech Collection of Microorganisms, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria
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15
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Sedláček I, Pantůček R, Králová S, Mašlaňová I, Holochová P, Staňková E, Vrbovská V, Švec P, Busse HJ. Hymenobacter amundsenii sp. nov. resistant to ultraviolet radiation, isolated from regoliths in Antarctica. Syst Appl Microbiol 2019; 42:284-290. [DOI: 10.1016/j.syapm.2018.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 11/27/2018] [Accepted: 12/09/2018] [Indexed: 10/27/2022]
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16
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Terashima M, Ohashi K, Takasuka TE, Kojima H, Fukui M. Antarctic heterotrophic bacterium Hymenobacter nivis P3 T displays light-enhanced growth and expresses putative photoactive proteins. ENVIRONMENTAL MICROBIOLOGY REPORTS 2019; 11:227-235. [PMID: 30298689 DOI: 10.1111/1758-2229.12702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
Hymenobacter nivis P3T is a heterotrophic bacterium isolated from Antarctic red snow generated by algal blooms. Despite being non-photosynthetic, H. nivis was dominantly found in the red snow environment that is exposed to high light and UV irradiation, suggesting that this species can flourish under such harsh conditions. In order to further understand the adaptive strategies on the snow surface environment of Antarctica, the genome of H. nivis P3T was sequenced and analyzed, which identified genes putatively encoding for light-reactive proteins such as proteorhodopsin, phytochrome, photolyase and several copies of cryptochromes. Culture-based experiments revealed that H. nivis P3T growth was significantly enhanced under light conditions, while dark conditions had increased extracellular polymeric substances. Furthermore, the expression of several putative light-reactive proteins was determined by proteomic analysis. These results indicate that H. nivis P3T is able to potentially utilize light, which may explain its dominance on the red snow surface environment of Antarctica. ORIGINALITY-SIGNIFICANCE STATEMENT: The role of proteorhodopsin in heterotrophic bacteria is not well-characterized, as only a handful of proteorhodopsin-harbouring isolates were shown to have a light-enhanced phenotype through culture-based experiments to date. This is the first study that demonstrates light-stimulated growth and protein expression evidence of photoactive proteins for a non-marine psychrophile and for a member of the genus Hymenobacter. It is also the first study that provides comprehensive proteome information for this genus. This study presents significant results in understanding the adaptive mechanism of a heterotrophic non-photosynthetic bacterium thriving on the snow surface environment of Antarctica as well as demonstrating the role of light-utilization in promoting growth, possibly through proteorhodopsin.
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Affiliation(s)
- Mia Terashima
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, 060-0819, Japan
| | - Keisuke Ohashi
- Research Faculty of Agriculture, Hokkaido University, Kita-ku, Sapporo, 060-8589, Japan
| | - Taichi E Takasuka
- Research Faculty of Agriculture, Hokkaido University, Kita-ku, Sapporo, 060-8589, Japan
| | - Hisaya Kojima
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, 060-0819, Japan
| | - Manabu Fukui
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, Sapporo, 060-0819, Japan
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Liang Y, Tang K, Wang Y, Yuan B, Tan F, Feng F, Liu H. Hymenobacter crusticola sp. nov., isolated from biological soil crust. Int J Syst Evol Microbiol 2018; 69:547-551. [PMID: 30575501 DOI: 10.1099/ijsem.0.003196] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A Gram-stain-negative, aerobic, light-pink, short rod-shaped, non-spore-forming bacterial strain was isolated from biological soil crust sampled in the Hopq Desert, Inner Mongolia, China, designated MIMBbqt21T. The G+C content of the genomic DNA was 55.1 mol%. Phylogenetic analysis of the 16S rRNA gene sequence showed that strain MIMBbqt21T belonged to the genus Hymenobacter and had the highest sequence similarity to Hymenobacter cavernaeK1E01-27T (94.35 %). Cell growth could be observed at 4-29 °C (optimum, 24 °C), pH of 6.0-8.6 (optimum, 6.0) and in the presence of 1 % (w/v) NaCl (optimum, 0 %). The major fatty acids of strain MIMBbqt21T were iso-C15 : 0, C16 : 1ω5c and summed feature 3 (C16 : 1ω7c/C16 : 1ω6c). The main polar lipids were phosphatidylethanolamine, five unidentified aminophospholipids, an unidentified glycolipid and four unidentified polar lipids. The sole respiratory quinone was menaquinone MK-7. Based on the results of the phylogenetic, chemotaxonomic and phenotypic studies, strain MIMBbqt21T could be distinguished from all known Hymenobacter species and represents a novel species, for which the name Hymenobactercrusticola sp. nov. is proposed. The type strain is MIMBbqt21T (=MCCC 1K01312T=KCTC 42804T).
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Affiliation(s)
- Yungang Liang
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Kai Tang
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Yu Wang
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Bo Yuan
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China.,2College of Life Science, Inner Mongolia Normal University, Huhhot 010018, PR China
| | - Fang Tan
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Fuying Feng
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Huirong Liu
- 1Institute for Applied and Environmental Microbiology, College of Life Science, Inner Mongolia Agricultural University, Huhhot 010018, PR China
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Ten LN, Han YE, Park KI, Kang IK, Han JS, Jung HY. Hymenobacter jeollabukensis sp. nov., isolated from soil. J Microbiol 2018; 56:500-506. [PMID: 29956123 DOI: 10.1007/s12275-018-8085-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/10/2018] [Accepted: 05/11/2018] [Indexed: 10/28/2022]
Abstract
A Gram-stain-negative, non-motile, rod-shaped, aerobic bacterial strain, designated 1-3-3-8T, was isolated from soil and characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 1-3-3-8T belongs to the family Cytophagaceae of phylum Bacteroidetes and is most closely related to Hymenobacter paludis KBP-30T (96.8% similarity), Hymenobacter ocellatus Myx2105T (96.8%), Hymenobacter coalescens WW84T (95.6%), and Hymenobacter deserti ZLB-3T (95.4%). The G + C content of the genomic DNA of strain 1-3-3-8T was 63.6 mol%. The isolate contained C15:0 iso (28.4%), summed feature 4 (C17:1 anteiso B/C17:1 iso I; 18.9%), and C15:0 anteiso (17.6%) as major fatty acids, MK-7 as the predominant respiratory quinone, and sym-homospermidine as the predominant polyamine. The major polar lipids were phosphatidylethanolamine and an unidentified lipid. The phenotypic and chemotaxonomic data supported the affiliation of strain 1-3-3-8T with the genus Hymenobacter. The DNA-DNA relatedness between strain 1-3-3-8T and H. paludis KCTC 32237T and H. ocellatus DSM 11117T were 24.5 and 27.4% respectively, clearly showing that the isolate is not related to them at the species level. Overall, the novel strain could be differentiated from its phylogenetic neighbors on the basis of several phenotypic, genotypic, and chemotaxonomic features. Therefore, strain 1-3-3-8T represents a novel species of the genus Hymenobacter, for which the name Hymenobacter jeollabukensis sp. nov. has been proposed. The type strain is 1-3-3-8T (= KCTC 52741T = JCM 32192T).
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Affiliation(s)
- Leonid N Ten
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Young Eun Han
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kyeung Il Park
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - In-Kyu Kang
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jeung-Sul Han
- Department of Horticultural Science, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Hee-Young Jung
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea. .,Institute of Plant Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Hymenobacter segetis sp. nov., isolated from soil. Arch Microbiol 2018; 200:1167-1175. [PMID: 29876587 DOI: 10.1007/s00203-018-1536-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/09/2018] [Accepted: 05/29/2018] [Indexed: 10/14/2022]
Abstract
A polyphasic taxonomic study was performed on a novel strain designated as S7-3-11T, which was isolated from soil of the Gyeongsangnam-do province in Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain S7-3-11T belongs to the genus Hymenobacter and is most closely related to Hymenobacter ruber PB156T (97.9%), Hymenobacter daeguensis 16F3Y-2T (97.8%), Hymenobacter glaciei VUG-A130T (97.7%), Hymenobacter soli PB17T (97.5%), Hymenobacter terrae DG7AT (97.5%), and Hymenobacter antarcticus VUG-A42aaT (97.3%). However, DNA-DNA hybridization results showed less than 50% relatedness with respect to the type strains of the six most closely related species. The DNA G + C content of strain S7-3-11T was 60.2 mol%. MK-7 was identified as the predominant respiratory quinone, and summed feature 3 (C16:1 ω7c/C16:1 ω6c; 21.5%), C15:0 iso (16.8%), C15:0 anteiso (16.2%), and C15:1 iso G (10.8%) were the major fatty acids. Phosphatidylethanolamine, an unidentified aminolipid, and an unidentified aminophospholipid were detected as major polar lipids. On the basis of the polyphasic evidence presented, strain S7-3-11T is considered to represent a novel species of the genus Hymenobacter, for which the name Hymenobacter segetis sp. nov. is proposed. The type strain is S7-3-11T (= KCTC 52732T = JCM 32197T).
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Hymenobacter aquatilis sp. nov., isolated from a mesotrophic artificial lake. Int J Syst Evol Microbiol 2018; 68:2036-2041. [DOI: 10.1099/ijsem.0.002792] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Lim SJ, Ten LN, Kim BO, Kang IK, Jung HY. Hymenobacter pedocola sp. nov., a novel bacterium isolated from soil. Int J Syst Evol Microbiol 2018; 68:2242-2248. [PMID: 29767618 DOI: 10.1099/ijsem.0.002818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strain S12-2-1T was isolated from a soil sample collected in the Gyeongsangnam-do province of the Republic of Korea. The isolate is a Gram-stain-negative, aerobic, short, rod-shaped bacterium, and its colonies are red to pink in colour. Analysis of the 16S rRNA gene identified strain S12-2-1T as a member of the genus Hymenobacter in the family Cytophagaceae, with high levels of 16S rRNA gene sequence similarity to Hymenobacter arizonensis OR362-8T (97.7 %), Hymenobacter sedentarius DG5BT (97.4 %) and Hymenobacter humi DG31AT (97.2 %). The isolate was positive for catalase and oxidase, but negative for acid production from glucose. The growth of strain S12-2-1T was supported at 4-30 °C, pH 7-10 and in the presence of 0-0.5 % NaCl. Strain S12-2-1T contained menaquinone-7 as the predominant respiratory quinone, sym-homospermidine as the major polyamine and iso-C15 : 0, anteiso-C15 : 0 and summed feature 3 (C16 : 1ω7c/C16 : 1ω6c) as the major fatty acids. Phosphatidylethanolamine was the major polar lipid. The genomic DNA G+C content was 58.7 mol%. Phenotypic and chemotaxonomic data supported the assignment of the isolate to the genus Hymenobacter. However, strain S12-2-1T exhibited a relatively low level of DNA-DNA relatedness with H. humi (31.7 %), H. arizonensis (24.4 %) and H. sedentarius (21.3 %). Based on its phenotypic and genotypic properties, along with its phylogenetic distinctiveness, strain S12-2-1T should be considered a novel species in the genus Hymenobacter, for which the name Hymenobacter pedocola sp. nov. is proposed. The type strain is S12-2-1T (=KCTC 52730T=JCM 32198T).
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Affiliation(s)
- Soo-Jeong Lim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Leonid N Ten
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Byung-Oh Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - In-Kyu Kang
- Department of Horticultural Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hee-Young Jung
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea.,Institute of Plant Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
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Sun J, Xing M, Wang W, Dai F, Liu J, Hao J. Hymenobacter profundi sp. nov., isolated from deep-sea water. Int J Syst Evol Microbiol 2018; 68:947-950. [PMID: 29458543 DOI: 10.1099/ijsem.0.002621] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, rod-shaped, red-pigmented, aerobic bacterium, strain M2T, was isolated from a seawater sample collected from the western Pacific Ocean at a depth of 1000 m and characterized using polyphasic taxonomy. Strain M2T was catalase-positive and oxidase-negative. Cells grew at 4-33 °C (optimum, 25 °C), at pH 6-9 (optimum, 7) and with 0-4 % (w/v) (optimum, 1 %) NaCl. Phylogenetic trees based on 16S rRNA gene sequences showed that strain M2T was associated with the genus Hymenobacter. Strain M2T showed the highest 16S rRNA gene sequence similarities to Hymenobacter actinosclerus CCUG 39621T (95.7 %), Hymenobacter tibetensis XTM003T (95.6 %) and Hymenobacter psychrotolerans Tibet-IIU11T (95.2 %). The DNA G+C content was 59.98 mol%. Strain M2T contained C16 : 1ω5c (25.0 %), iso-C15 : 0 (23.9 %) and summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c, 20.4 %) as major cellular fatty acids. The major quinone of strain M2T was menaquinone 7 and the major polar lipid was phosphatidylethanolamine. The major polyamine of strain M2T was sym-homospermidine. The phylogenetic analysis and physiological and biochemical data showed that strain M2T should be classified as representing a novel species of the genus Hymenobacter, for which the name Hymenobacter profundi sp. nov. is proposed. The type strain is M2T (=CCTCC AB 2017185T=KCTC 62120T).
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Affiliation(s)
- Jingjing Sun
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
| | - Mengxin Xing
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
| | - Wei Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
| | - Fangqun Dai
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
| | - Junzhong Liu
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
| | - Jianhua Hao
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, PR China.,Laboratory for Marine Drugs and Bioproducts, Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, PR China
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