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Ying Y, Yuan B, Liu T, Bai X, Zhao H. Leucobacter tenebrionis sp. nov., isolated from the gut of Tenebrio molitor. Int J Syst Evol Microbiol 2023; 73. [PMID: 37823785 DOI: 10.1099/ijsem.0.006081] [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: 10/13/2023] Open
Abstract
A novel Gram-stain-positive bacterium, designated NB10T, was isolated from the gut of Tenebrio molitor. The isolate was rod-shaped, aerobic, non-motile and non-spore-forming. Colonies of strain NB10T were light yellow, circular and smooth. Phylogenetic analysis based on 16S rRNA gene sequence comparisons indicated that the isolate was related to the genus Leucobacter. Its closest relatives were Leucobacter holotrichiae T14T (97.8 % 16S rRNA gene sequence similarity), Leucobacter zeae CC-MF41T (97.0%) and Leucobacter salsicius M1-8T (96.4%). The DNA G+C content of strain NB10T was 68.8 mol%. The average nucleotide identity (ANI) and digital DNA-DNA hybridization values among strain NB10T and the selected Leucobacter species were ≤83.8 % (ANI-blast), 87.6 % (ANI-MUMmer) and 29.6%, which were below the recommended cutoff values for species delineation. The predominant cellular fatty acids were anteiso-C15 : 0 (39.0%), anteiso-C17 : 0 (35.5%) and iso-C16 : 0 (17.0%). The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and glycolipids. The predominant respiratory quinones were MK-11 and MK-10. The cell wall amino acids were Gly, Glu, Tr, Ala, and DAB. Based on these phylogenetic and phenotypic results, strain NB10T can be clearly distinguished from all of the recognized species of the genus Leucobacter and is considered to represent a novel species of that genus. The name Leucobacter tenebrionis sp. nov. is proposed, with the type strain NB10T (=MCCC 1K07072T=KCTC 49728T).
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Affiliation(s)
- Yu Ying
- Qingdao Institute for Food and Drug Control 266071, Qingdao, PR China
| | - Bo Yuan
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot, 010022, Inner Mongolia, PR China
| | - Tingting Liu
- Qingdao Institute for Food and Drug Control 266071, Qingdao, PR China
| | - Xiaoshuan Bai
- College of Life Science and Technology, Inner Mongolia Normal University, Hohhot, 010022, Inner Mongolia, PR China
| | - Haifeng Zhao
- Qingdao Institute for Food and Drug Control 266071, Qingdao, PR China
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Zhu J, Che J, Jiang X, Ma M, Guan D, Li L, Cao F, Zhao B, Kang Y, Zhao J, Kong D, Zhou Y, Ruan Z, Li J. Leucobacter chinensis sp. nov., with plant growth-promoting potential isolated from field soil after seven-years continuous maize cropping. Int J Syst Evol Microbiol 2022; 72. [PMID: 35939329 DOI: 10.1099/ijsem.0.005417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A novel Gram-stain-positive, aerobic, non-motile and rod-shaped bacterium, designated strain NC76-1T, was isolated from soil from a field that had undergone seven years continuous maize cropping from Liuba town located in Zhangye city, Gansu province, PR China. Colonies of strain NC76-1T were white, opaque and circular with a convex shape. The isolate was found to be able to grow at 10-40 °C (optimum 30 °C), pH 6.0 to 12.0 (optimum 7.0-8.0) and with 0-5.0 % (w/v) NaCl (optimum 0%). On the basis of the results of 16S rRNA gene sequence analysis, the strain fell within the clade of the genus Leucobacter, showing the highest sequence similarities with Leucobacter iarius 40T (97.4%), Leucobacter aridicollis CIP 108388T (97.0%), Leucobacter chromiireducens subsp. solipictus TAN 31504T (96.7%) and Leucobacter denitrificans M1T8B10T (96.7%). The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between NC76-1T and its closest relatives, L. iarius 40T, L. aridicollis CIP 108388T, L. chromiireducens subsp. solipictus TAN 31504T and L. denitrificans M1T8B10T were ≤73.5 % and 20.3%, respectively. The genomic DNA G+C content of NC76-1T was 61.5 mol%. It presented MK-11 as the predominant menaquinone. The major cellular fatty acids were anteiso-C15 : 0 (49.2 %) and iso-C16 : 0 (35.7%). The major polar lipids were found to be diphosphatidyglycerol, phosphatidylglycerol, phosphatidylethanolamine, aminoglycolipid, five glycolipid and one unidentified lipids. The cell wall amino acids were 2,4-diaminobutyric acid, alanine, glutamic acid, glycine and threonine. On the basis of the phylogenetic, phenotypic and chemotaxonomic characteristics, strain NC76-1T is concluded to represent a novel species within the genus Leucobacter, for which the name Leucobacter chinensis sp. nov. is proposed. The type strain is NC76-1T (GDMCC 1.2286T= JCM 34651T).
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Affiliation(s)
- Jie Zhu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, PR China
| | - Juan Che
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,College of Life Science, Xinjiang Normal University, Urumqi, 830046, PR China
| | - Xin Jiang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
| | - Mingchao Ma
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
| | - Dawei Guan
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Li Li
- Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
| | - Fengming Cao
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
| | - Baisuo Zhao
- Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
| | - Yaowei Kang
- Life Sciences Collage of Zhaoqing University, Zhaoqing 526061, PR China
| | - Ji Zhao
- School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, PR China
| | - Delong Kong
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Yiqing Zhou
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhiyong Ruan
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jun Li
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.,Laboratory of Quality and Safety Risk Assessment for Microbial Products (Beijing), Ministry of Agriculture, Beijing 100081, PR China
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Kämpfer P, McInroy JA, Clermont D, Neumann-Schaal M, Criscuolo A, Busse HJ, Glaeser SP. Leucobacter soli sp. nov., from soil amended with humic acid. Int J Syst Evol Microbiol 2021; 71. [PMID: 34904944 DOI: 10.1099/ijsem.0.005156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A Gram-positive, non-spore-forming actinobacterium (IMT-300T) was isolated from soil amended with humic acid in Malvern, AL, USA. This soil has been used for 50+years for the cultivation of earthworms for use as fish bait. Based on 16S rRNA gene sequence similarity studies, strain IMT-300T was shown to belong to the genus Leucobacter and was closely related to the type strain of 'Leucobacter margaritiformis' L1T (97.8%). Similarity to all other type strains of Leucobacter species was lower than 97.2 %. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between the IMT-300T genome assembly and those of the closest relative Leucobacter type strain were 81.4 and 23.3 % (Leucobacter chironomi), respectively. The peptidoglycan of strain IMT-300T contained l-2,4-diaminobutyric acid as the diagnostic diamino acid. In addition, glycine, d- and l-alanine and d-glutamic acid were found. The peptidoglycan type represents a variant of B2δ (B11). The major quinones were menaquinones MK-10 and MK-11. The polar lipid profile consisted of the major lipids diphosphatidylglycerol, phosphatidylglycerol and moderate to minor amounts of two unidentified phospholipids, two unidentified glycolipids and an unidentified aminophospholipid. The polyamine pattern contained major amounts of spermidine and spermine. Strain IMT-300T contained the major fatty acids C15 : 0 anteiso, C16 : 0 iso and C17 : 0 anteiso, like other members of the genus Leucobacter. The results of ANI and dDDH analyses and physiological and biochemical tests allowed a genotypic and phenotypic differentiation of strain IMT-300T from the most closely related Leucobacter species. Strain IMT-300T represents a novel Leucobacter species, for which we propose the name Leucobacter soli sp. nov., with the type strain IMT-300T (CIP 111803T=DSM 110505T=CCM 9020T=LMG 31600T).
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Affiliation(s)
- Peter Kämpfer
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
| | - John A McInroy
- Department of Entomology and Plant Pathology, Auburn University, AL 36849, USA
| | - Dominique Clermont
- Institut Pasteur, Université de Paris, CIP-Collection de l´Institut Pasteur, F-75015 Paris, France
| | - Meina Neumann-Schaal
- Deutsche Sammlung von Mikroorganismen und Zellkulturen, D-38124 Braunschweig, Germany
| | - Alexis Criscuolo
- Institut Pasteur, Université de Paris, Hub de Bioinformatique et Biostatistique - Département Biologie Computationnelle, 75015 Paris, France
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität Wien, A-1210 Wien, Austria
| | - Stefanie P Glaeser
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
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Xu Z, Li X, Tian J, Gan L, Tian Y. Leucobacter chromiisoli sp. nov., isolated from chromium-containing chemical plant soil. Int J Syst Evol Microbiol 2021; 71. [PMID: 34319867 DOI: 10.1099/ijsem.0.004923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-positive, rod-shaped, aerobic, non-motile, non-sporulating bacterial strain, designated CSA1T, was isolated from chromium-containing soil sampled at a chemical plant. Growth of strain CSA1T occurred at pH 6-10 (optimum, pH 7), 15-45 °C (optimum, 30 °C) and in the presence of 0.5-6.5 % (w/v) NaCl (optimum, 2 %). The 16S rRNA gene sequence of strain CSA1T revealed the highest similarity to Leucobacter ruminantium A2T (97.5 %), Leucobacter tardus K 70/01T (97.3 %), Leucobacter humi Re6T (96.6 %), Leucobacter kyeonggiensis F3-P9T (96.2 %), Leucobacter zeae CC-MF41T (96.1 %) and Leucobacter weissii S27T (96.0 %). The draft genome of CSA1T was approximately 3 350 931 bp in size with a G+C content of 70.6 mol%. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values among strain CSA1T and the selected Leucobacter species were 74.0-79.2 % (ANIb), 84.3-87.1 % (ANIm) and 21.5-25.4 % (dDDH), which are below the recommended cutoff values for species delineation. The major fatty acids were anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol and an unknown glycolipid. The predominant menaquinones were MK-11, MK-8 and MK-6. The cell-wall amino acids were 2,4-diaminobutyric acid, alanine, glycine, glutamic acid and threonine. From the phenotypic, chemotaxonomic and molecular features, strain CSA1T was considered to represent a novel species of the genus Leucobacter, for which the name Leucobacter chromiisoli sp. nov. is proposed. The type strain is CSA1T (=JCM 34359T=CGMCC 1.18746T).
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Affiliation(s)
- Zhe Xu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
| | - Xiaoguang Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
| | - Jiewei Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
| | - Longzhan Gan
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
| | - Yongqiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
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Benga L, Spröer C, Schumann P, Verbarg S, Bunk B, Engelhardt E, Benten WPM, Sager M. Leucobacter muris sp. nov., isolated from the nose of a laboratory mouse. Int J Syst Evol Microbiol 2019; 69:2095-2100. [PMID: 31099739 DOI: 10.1099/ijsem.0.003446] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-positive, rod-shaped, aerobic, non-motile, white, opaque bacterial isolate, designated 924/12T, was isolated from the nose of a laboratory mouse in Düsseldorf, Germany. The 16S rRNA gene sequence analyses indicated the phylogenetic position of the strain within the genus Leucobacter. Similarity levels over 97 % were recorded between the 16S rRNA gene sequence of strain 924/12T and the type strains of the species Leucobacter chironomi DSM 19883T (99.5 %), followed by Leucobacter celersubsp. astrifaciens CBX151T (97.6 %), Leucobacter celersubsp. celer NAL101T (97.5 %), 'Leucobacter kyeonggiensis' F3-P9 (97.5 %), Leucobacter zeae CC-MF41T (97.3 %), Leucobacter chromiiresistens JG31T (97.1 %), Leucobacter triazinivorans JW-1T (97.1 %), Leucobacter corticis 2 C-7T (97.0 %) and Leucobacter aridicolis CIP108388T (97.0 %). DNA-DNA hybridization and whole genomic comparison, mandatory to taxonomically separate strain 924/12T from the type strain of L. chironomi, revealed similarity values of 40.4 and 30.8 %, respectively, thus below the threshold of 70 % recommended differentiating between species. The cell-wall amino acids of the novel isolate were diaminobutyric acid, alanine, glycine, threonine and glutamic acid. The major fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, glycolipid and one unknown lipid, whereas the predominant menaquinones were MK-11 and MK-10. The genomic DNA G+C content of strain 924/12T was 70.6 mol%. Phylogenetic analyses based on the 16S rRNA gene sequences and the phenotypical differences between strain 924/12T and the other closely related type strains of the genus Leucobacter indicated that strain 924/12T represents a novel species within the genus Leucobacter, family Microbacteriaceae, for which the name Leucobacter muris sp. nov. is proposed. The type strain is 924/12T (=DSM 101948T=CCM 8761T).
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Affiliation(s)
- Laurentiu Benga
- 1Central Unit for Animal Research and Animal Welfare Affairs, University Hospital, Heinrich - Heine - University, Geb. 22.22, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Cathrin Spröer
- 2Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
| | - Peter Schumann
- 2Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
| | - Susanne Verbarg
- 2Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
| | - Boyke Bunk
- 2Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
| | - Eva Engelhardt
- 1Central Unit for Animal Research and Animal Welfare Affairs, University Hospital, Heinrich - Heine - University, Geb. 22.22, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - W Peter M Benten
- 1Central Unit for Animal Research and Animal Welfare Affairs, University Hospital, Heinrich - Heine - University, Geb. 22.22, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Martin Sager
- 1Central Unit for Animal Research and Animal Welfare Affairs, University Hospital, Heinrich - Heine - University, Geb. 22.22, Universitätsstr. 1, 40225 Düsseldorf, Germany
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A novel pigmented and heavy metal biosorptive bacterium, Leucobacter epilobiisoli sp. nov., isolated from rhizosphere soil of Epilobium hirsutum L. Antonie van Leeuwenhoek 2018; 111:1825-1833. [DOI: 10.1007/s10482-018-1071-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/20/2018] [Indexed: 10/17/2022]
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Leangapichart T, Gautret P, Nguyen T, Armstrong N, Rolain JM. Genome sequence of " Leucobacter massiliensis" sp. nov. isolated from human pharynx after travel to the 2014 Hajj. New Microbes New Infect 2018; 21:42-48. [PMID: 29204283 PMCID: PMC5709290 DOI: 10.1016/j.nmni.2017.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 10/09/2017] [Accepted: 10/17/2017] [Indexed: 01/12/2023] Open
Abstract
"Leucobacter massiliensis" strain 122RC15T sp. nov. is a new species within the genus Leucobacter. The genome of this strain is described here. It was isolated from the pharynx of a 76-year-old Algerian female after travelling from the 2014 Hajj. "Leucobacter massiliensis" is a Gram-positive, aerobic bacillus. Here we describe the features including complete genome and annotation of this strain. The 3 136 406-bp long genome contains 2797 protein-coding genes and 49 RNA genes.
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Affiliation(s)
| | | | | | | | - J.-M. Rolain
- Unité de recherche sur les maladies infectieuses et tropicales émergentes (URMITE) CNRS-IRD UMR 6236, Méditerranée Infection, Faculté de Médecine et de Pharmacie, Aix-Marseille-Université, Marseille, France
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Sun LN, Pan DD, Wu XW, Yang ED, Hua RM, Li QX. Leucobacter triazinivorans sp. nov., a s-triazine herbicide prometryn-degrading bacterium isolated from sludge. Int J Syst Evol Microbiol 2018; 68:204-210. [PMID: 29139349 DOI: 10.1099/ijsem.0.002483] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Le-Ni Sun
- School of Life Science, Anhui Agricultural University, Hefei 230036, PR China
| | - Dan-Dan Pan
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China
| | - Xiang-Wei Wu
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China
| | - En-Dong Yang
- School of Life Science, Anhui Agricultural University, Hefei 230036, PR China
| | - Ri-Mao Hua
- School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East–West Road, Honolulu, HI 957822, USA
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Velho VF, Magnus BS, Daudt GC, Xavier JA, Guimarães LB, Costa RHR. Effect of COD/N ratio on N 2O production during nitrogen removal by aerobic granular sludge. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:3452-3460. [PMID: 29236023 DOI: 10.2166/wst.2017.502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
N2O-production was investigated during nitrogen removal using aerobic granular sludge (AGS) technology. A pilot sequencing batch reactor (SBR) with AGS achieved an effluent in accordance with national discharge limits, although presented a nitrite accumulation rate of 95.79% with no simultaneous nitrification-denitrification. N2O production was 2.06 mg L-1 during the anoxic phase, with N2O emission during air pulses and the aeration phase of 1.6% of the nitrogen loading rate. Batch tests with AGS from the pilot reactor verified that at the greatest COD/N ratio (1.55), the N2O production (1.08 mgN2O-N L-1) and consumption (up to 0.05 mgN2O-N L-1), resulted in the lowest remaining dissolved N2O (0.03 mgN2O-N L-1), stripping the minimum N2O gas (0.018 mgN2O-N L-1). Conversely, the carbon supply shortage, under low C/N ratios, increased N2O emission (0.040 mgN2O-N L-1), due to incomplete denitrification. High abundance of ammonia-oxidizing and low abundance of nitrite-oxidizing bacteria were found, corroborating the fact of partial nitrification. A denitrifying heterotrophic community, represented mainly by Pseudoxanthomonas, was predominant in the AGS. Overall, the AGS showed stable partial nitrification ability representing capital and operating cost savings. The SBR operation flexibility could be advantageous for controlling N2O emissions, and extending the anoxic phase would benefit complete denitrification in cases of low C/N influents.
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Affiliation(s)
- V F Velho
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail: ; Catarinense Federal Institute of Education, Science and Technology, Campus Camboriú, CEP: 88340 055 Camboriú, SC, Brazil
| | - B S Magnus
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail:
| | - G C Daudt
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail:
| | - J A Xavier
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail:
| | - L B Guimarães
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail:
| | - R H R Costa
- Federal University of Santa Catarina, Florianópolis, SC, Brazil E-mail:
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Schumann P, Pukall R. Leucobacter weissii sp. nov., an isolate from activated sludge once described as first representative of the peptidoglycan variation B2δ, and emended description of the genus Leucobacter. Int J Syst Evol Microbiol 2017; 67:5244-5251. [PMID: 29087268 DOI: 10.1099/ijsem.0.002454] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strain S27T is a Gram-stain-positive, regular rod-shaped, non-motile, non-spore-forming, yellow pigmented actinobacterium which was isolated from an aerated laboratory scale fermenter fed with wastes of a yeast factory. The strain was classified as Microbacterium sp. after the analysis of its peptidoglycan revealed a novel B-type structure established as variation B2δ by Hensel in 1984. As the combination of the peptidoglycan amino acids 2,4-diaminobutyric acid (Dab), threonine (Thr), glycine (Gly), alanine (Ala) and glutamic acid (Glu) is in disagreement with the current genus definition of Microbacterium but is typical of several Leucobacter species, the taxonomic status of strain S27T was re-examined by a polyphasic study. Comparative analyses of 16S rRNA gene sequences and the occurrence of l-Dab, d-Ala, l-Ala, Gly, l-Thr, d-Glu and lower amounts of l-Glu in the peptidoglycan in combination with the predominating menaquinones MK-11, MK-10 and MK-9, phosphatidylglycerol, and one unknown glycolipid as the major polar lipids (and trace amounts of diphosphatidylglycerol and an unknown phospholipid), a profile with anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 0, anteiso-C17 : 0 and iso-C17 : 0 as major fatty acids and the G+C value of 70.1 mol% confirmed the affiliation to the genus Leucobacter and revealed that S27T (=DSM 20621T =CCM 8762T) is the type strain of a new species for which the name Leucobacter weissii sp. nov. is proposed. The availability of new data allows for an emended description of the genus Leucobacter.
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Affiliation(s)
- Peter Schumann
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
| | - Rüdiger Pukall
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
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Chun BH, Lee HJ, Jeong SE, Schumann P, Jeon CO. Leucobacter ruminantium sp. nov., isolated from the bovine rumen. Int J Syst Evol Microbiol 2017; 67:2634-2639. [DOI: 10.1099/ijsem.0.002003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Byung Hee Chun
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hyo Jung Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Biology, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Sang Eun Jeong
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Peter Schumann
- Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, D-38124 Braunschweig, Germany
| | - Che Ok Jeon
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
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Leucobacter corticis sp. nov., isolated from symptomatic bark of Populus × euramericana canker. Int J Syst Evol Microbiol 2017; 67:2248-2252. [DOI: 10.1099/ijsem.0.001934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Diversity of Cultivable Midgut Microbiota at Different Stages of the Asian Tiger Mosquito, Aedes albopictus from Tezpur, India. PLoS One 2016; 11:e0167409. [PMID: 27941985 PMCID: PMC5152811 DOI: 10.1371/journal.pone.0167409] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 11/14/2016] [Indexed: 11/19/2022] Open
Abstract
Aedes aegypti and Ae. albopictus are among the most important vectors of arboviral diseases, worldwide. Recent studies indicate that diverse midgut microbiota of mosquitoes significantly affect development, digestion, metabolism, and immunity of their hosts. Midgut microbiota has also been suggested to modulate the competency of mosquitoes to transmit arboviruses, malaria parasites etc. Interestingly, the midgut microbial flora is dynamic and the diversity changes with the development of vectors, in addition to other factors such as species, sex, life-stage, feeding behavior and geographical origin. The aim of the present study was to investigate the midgut bacterial diversity among larva, adult male, sugar fed female and blood fed female Ae. albopictus collected from Tezpur, Northeastern India. Based on colony morphological characteristics, we selected 113 cultivable bacterial isolates for 16S rRNA gene sequence based molecular identification. Of the 113 isolates, we could identify 35 bacterial species belonging to 18 distinct genera under four major phyla, namely Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes. Phyla Proteobacteria and Firmicutes accounted for majority (80%) of the species, while phylum Actinobacteria constituted 17% of the species. Bacteroidetes was the least represented phylum, characterized by a single species- Chryseobacterium rhizoplanae, isolated from blood fed individuals. Dissection of midgut microbiota diversity at different developmental stages of Ae. albopictus will be helpful in better understanding mosquito-borne diseases, and for designing effective strategies to manage mosquito-borne diseases.
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Meerbergen K, Van Geel M, Waud M, Willems KA, Dewil R, Van Impe J, Appels L, Lievens B. Assessing the composition of microbial communities in textile wastewater treatment plants in comparison with municipal wastewater treatment plants. Microbiologyopen 2016; 6. [PMID: 27667132 PMCID: PMC5300884 DOI: 10.1002/mbo3.413] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 12/20/2022] Open
Abstract
It is assumed that microbial communities involved in the biological treatment of different wastewaters having a different chemical composition harbor different microbial populations which are specifically adapted to the environmental stresses encountered in these systems. Yet, little is known about the composition of these microbial communities. Therefore, the aim of this study was to assess the microbial community composition over two seasons (winter and summer) in activated sludge from well‐operating textile wastewater treatment plants (WWTPs) in comparison with municipal WWTPs, and to explain observed differences by environmental variables. 454‐pyrosequencing generated 160 archaeal and 1645 bacterial species‐level Operational Taxonomic Units (OTUs), with lower observed richness in activated sludge from textile WWTPs compared to municipal WWTPs. The bacterial phyla Planctomycetes, Chloroflexi, Chlorobi, and Acidobacteria were more abundant in activated sludge samples from textile WWTPs, together with archaeal members of Thaumarchaeota. Nonmetric multidimensional scaling analysis of the microbial communities showed that microbial communities from textile and municipal WWTPs were significantly different, with a seasonal effect on archaea. Nitrifying and denitrifying bacteria as well as phosphate‐accumulation bacteria were more abundant in municipal WWTPs, while sulfate‐reducing bacteria were almost only detected in textile WWTPs. Additionally, microbial communities from textile WWTPs were more dissimilar than those of municipal WWTPs, possibly due to a wider diversity in environmental stresses to which microbial communities in textile WWTPs are subjected to. High salinity, high organic loads, and a higher water temperature were important potential variables driving the microbial community composition in textile WWTPs. This study provides a general view on the composition of microbial communities in activated sludge of textile WWTPs, and may provide novel insights for identifying key players performing important functions in the purification of textile wastewaters.
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Affiliation(s)
- Ken Meerbergen
- Laboratory for Process Microbial Ecology and Bioinspirational Management (PME&BIM), Department of Microbial and Molecular Systems (M2S), Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
| | - Maarten Van Geel
- Plant Conservation and Population Biology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Michael Waud
- Laboratory for Process Microbial Ecology and Bioinspirational Management (PME&BIM), Department of Microbial and Molecular Systems (M2S), Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
| | - Kris A Willems
- Laboratory for Process Microbial Ecology and Bioinspirational Management (PME&BIM), Department of Microbial and Molecular Systems (M2S), Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
| | - Raf Dewil
- Process and Environmental Technology Lab (PETLab), Department of Chemical Engineering, Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
| | - Jan Van Impe
- Chemical and Biochemical Process Technology and Control (BioTeC), Department of Chemical Engineering, Technology Campus Gent, KU Leuven, Gent, Belgium
| | - Lise Appels
- Process and Environmental Technology Lab (PETLab), Department of Chemical Engineering, Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
| | - Bart Lievens
- Laboratory for Process Microbial Ecology and Bioinspirational Management (PME&BIM), Department of Microbial and Molecular Systems (M2S), Technology Campus De Nayer, KU Leuven, Sint-Katelijne-Waver, Belgium
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15
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Fang W, Li X, Tan XM, Wang LF, Piao CG, Li Y. Leucobacter populi sp. nov. isolated from a symptomatic bark of Populus × euramericana canker. Int J Syst Evol Microbiol 2016; 66:2254-2258. [DOI: 10.1099/ijsem.0.001020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Wei Fang
- The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- Forestry of Bureau Taishan, Taishan 529200, China
| | - Xia Li
- Patent Examination Cooperation Center of the Patent Office, SIPO, Beijing, Beijing 100086, China
| | - Xiu-mei Tan
- The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- College of Forestry, Xinjiang Agricultural University, Urumqi 830052, China
| | - Lai-fa Wang
- The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Chun-gen Piao
- The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Yong Li
- The Key Laboratory of State Forestry Administration on Forest Protection, Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
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Zhu D, Zhang P, Li P, Wu J, Xie C, Sun J, Niu L. Description of Leucobacter holotrichiae sp. nov., isolated from the gut of Holotrichia oblita larvae. Int J Syst Evol Microbiol 2016; 66:1857-1861. [PMID: 26869452 DOI: 10.1099/ijsem.0.000957] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024] Open
Abstract
A Gram-stain-positive bacterium, designated T14T, was isolated from the gut of Holotrichia oblita larvae and was subjected to a taxonomic study. The isolate was rod-shaped, aerobic, non-motile, non-spore-forming and yellow-pigmented. Phylogenetic analysis based on 16S rRNA gene sequence comparison indicated that the isolate is related to the genus Leucobacter. Its closest neighbours were the type strains 'Leucobacter kyeonggiensis' F3-P9 (96.8% 16S rRNA gene sequence similarity), Leucobacter celer NAL101T (96.2%) and Leucobacter chironomi DSM 19883T (95.5%). The DNA G+C content of strain T14T was 69.3 mol%, and DNA-DNA hybridization values with closely related strains were <32%. The predominant cellular fatty acids were anteiso-C15:0 (49.3%), iso-C16:0 (16.4%) and anteiso-C17:0 (16.8%). The major polar lipids were aminolipid, diphosphatidylglycerol, phosphatidylglycerol, phospholipid, phosphoglycolipid and unidentified glycolipids. The predominant respiratory quinone was MK-11. Based on these phylogenetic and phenotypic results, strain T14T can be clearly distinguished from all of the recognized species of the genus Leucobacter and is considered to represent a novel species of the genus Leucobacter. The name Leucobacter holotrichiae sp. nov. is proposed, with the type strain T14T (=DSM 28968T=JCM 30245T).
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Affiliation(s)
- Daochen Zhu
- School of Environmental Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Peipei Zhang
- School of Environmental Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Pingping Li
- Institute of Agricultural Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Jian Wu
- School of Environmental Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Changxiao Xie
- School of Environmental Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Jianzhong Sun
- School of Environmental Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PRChina
| | - Lili Niu
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, PRChina
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Lai WA, Lin SY, Hameed A, Hsu YH, Liu YC, Huang HR, Shen FT, Young CC. Leucobacter zeae sp. nov., isolated from the rhizosphere of maize (Zea mays L.). Int J Syst Evol Microbiol 2015; 65:4734-4742. [DOI: 10.1099/ijsem.0.000640] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel yellow-pigmented, aerobic, rod-shaped, non-motile bacterium, designated strain CC-MF41T, was isolated from rhizosphere soil of maize (Zea mays) collected in Wufeng District, Taichung, Taiwan. Strain CC-MF41T exhibited 16S rRNA gene sequence similarity of 97.5, 97.3, 97.2 and 97.1 % to Leucobacter chironomi MM2LBT (and ‘Leucobacter kyeonggiensis’ F3-P9 and ‘L. humi’ Re-6, the names of which have not been validly published), Leucobacter tardus K70/01T, L. komagatae IFO 15245T and ‘Leucobacter margaritiformis’ A23. However, CC-MF41T and ‘L. margaritiformis’ A23 formed a loosely bound phylogenetic lineage (with a low bootstrap value) associated with species of the genus Leucobacter. In DNA–DNA reassociation experiments, the relatedness of strain CC-MF41T to L. chironomi DSM 19883T was 57.1 % (reciprocal value 29.1 %). The DNA G+C content of strain CC-MF41T was 72.1 mol% and the cell-wall peptidoglycan contained 2,4-diaminobutyric acid, alanine, glycine, glutamic acid and threonine. The major menaquinone was MK-11 and the predominant fatty acids were iso-C16 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The polar lipid profile of strain CC-MF41T contained major amounts of diphosphatidylglycerol followed by an unidentified glycolipid, phosphatidylglycerol and an unknown phospholipid. Based on its phylogenetic, phenotypic and chemotaxonomic distinctiveness, strain CC-MF41T represents a novel species of Leucobacter, for which the name Leucobacter zeae sp. nov. is proposed. The type strain is CC-MF41T ( = BCRC 80515T = LMG 27265T).
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Affiliation(s)
- Wei-An Lai
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan ROC
| | - Shih-Yao Lin
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - Asif Hameed
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - Yi-Han Hsu
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - You-Cheng Liu
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - Hsuan-Ru Huang
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - Fo-Ting Shen
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan ROC
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
| | - Chiu-Chung Young
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taiwan ROC
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan ROC
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18
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Clark LC, Hodgkin J. Leucobacter musarum subsp. musarum sp. nov., subsp. nov., Leucobacter musarum subsp. japonicus subsp. nov., and Leucobacter celer subsp. astrifaciens subsp. nov., three nematopathogenic bacteria isolated from Caenorhabditis, with an emended description of Leucobacter celer. Int J Syst Evol Microbiol 2015; 65:3977-3984. [PMID: 26275616 PMCID: PMC4804768 DOI: 10.1099/ijsem.0.000523] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Three Gram-stain-positive, irregular-rod-shaped, non-motile, non-spore-forming bacteria were isolated from nematodes collected from Santa Antao, Cabo Verde (CBX151T, CBX152T) and Kakegawa, Japan (CBX130T). Based on 16S rRNA gene sequence similarity, strains CBX130T, CBX151T and CBX152T were shown to belong to the genus Leucobacter. This affiliation was supported by chemotaxonomic data (2,4-diaminobutyric acid in the cell wall; major respiratory quinones MK-10 and MK-11; major polar lipids phosphatidylglycerol and diphosphatidylglycerol; major fatty acids anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0). Strains CBX130T and CBX152T were found to share salient characteristics. Based on morphological, physiological, chemotaxonomic and biochemical analysis, strain CBX152T represents a novel species of the genus Leucobacter, for which the name Leucobacter musarum sp. nov. (type strain CBX152T = DSM 27160T = CIP 110721T) is proposed. Two subspecies of Leucobacter musarum sp. nov. are proposed: Leucobacter musarum sp. nov. subsp. musarum subsp. nov. (type strain CBX152T = DSM 27160T = CIP 110721T) and Leucobacter musarum sp. nov. subsp. japonicus subsp. nov. (type strain CBX130T = DSM 27158T = CIP 110719T). The third novel strain, CBX151T, showed genetic similarities with Leucobacter celer NAL101T indicating that these strains belong to the same species. Based on morphological, physiological, chemotaxonomic and biochemical differences it is proposed to split the species Leucobacter celer into two novel subspecies, Leucobacter celer subsp. celer subsp. nov. (type strain NAL101T = KACC 14220T = JCM 16465T) and Leucobacter celer subsp. astrifaciens subsp. nov. (type strain CBX151T = DSM 27159T = CIP 110720T), and to emend the description of Leucobacter celerShin et al. 2011.
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Affiliation(s)
- Laura C Clark
- Biochemistry Department, University of Oxford, South Parks Road, Oxford OX1 3QU, UK
| | - Jonathan Hodgkin
- Biochemistry Department, University of Oxford, South Parks Road, Oxford OX1 3QU, UK
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Franciscon E, Mendonça D, Seber S, Morales DA, Zocolo GJ, Zanoni MB, Grossman MJ, Durrant LR, Freeman HS, Umbuzeiro GA. Potential of a bacterial consortium to degrade azo dye Disperse Red 1 in a pilot scale anaerobic–aerobic reactor. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.01.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Leucobacter humi sp. nov., Isolated from Forest Soil. Curr Microbiol 2015; 71:235-42. [DOI: 10.1007/s00284-015-0820-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/01/2015] [Indexed: 10/23/2022]
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21
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Lv Y, Wan C, Lee DJ, Liu X, Tay JH. Microbial communities of aerobic granules: granulation mechanisms. BIORESOURCE TECHNOLOGY 2014; 169:344-351. [PMID: 25063977 DOI: 10.1016/j.biortech.2014.07.005] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 06/30/2014] [Accepted: 07/01/2014] [Indexed: 06/03/2023]
Abstract
Aerobic granulation is an advanced biological wastewater treatment technology. This study for the first time identified the microbial communities of sliced samples of mature granules by polymerase chain reaction (PCR) amplification and denaturing gradient gel electrophoresis (DGGE) technique and those of whole growing granules by high-throughput sequencing technique. The sliced sample study revealed that mature granules have a spherical core with anaerobic Rhodocyclaceae covered by an outer spherical shell with both aerobic and anaerobic strains. The growing granule study showed that the flocculated flocs were first transited to young granules with increased abundances of Flavobacteriaceae, Xanthomonadaceae, Rhodobacteraceae and Microbacteriaceae, then the abundances of anaerobic strains were increased owing to the formation of anaerobic core. Since the present granules were cultivated from flocculated flocs, the microbial community data suggested that granules were formed via a deterministic rather than via a random aggregation-disintegration mechanism.
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Affiliation(s)
- Yi Lv
- Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Chunli Wan
- Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Duu-Jong Lee
- Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Xiang Liu
- Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Joo-Hwa Tay
- Department of Civil Engineering, University of Calgary, Calgary, Canada
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Yun JH, Cho YJ, Chun J, Hyun DW, Bae JW. Genome sequence of the chromate-resistant bacterium Leucobacter salsicius type strain M1-8(T.). Stand Genomic Sci 2014; 9:495-504. [PMID: 25197435 PMCID: PMC4148977 DOI: 10.4056/sigs.4708537] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Leucobacter salsicius M1-8(T) is a member of the Microbacteriaceae family within the class Actinomycetales. This strain is a Gram-positive, rod-shaped bacterium and was previously isolated from a Korean fermented food. Most members of the genus Leucobacter are chromate-resistant and this feature could be exploited in biotechnological applications. However, the genus Leucobacter is poorly characterized at the genome level, despite its potential importance. Thus, the present study determined the features of Leucobacter salsicius M1-8(T), as well as its genome sequence and annotation. The genome comprised 3,185,418 bp with a G+C content of 64.5%, which included 2,865 protein-coding genes and 68 RNA genes. This strain possessed two predicted genes associated with chromate resistance, which might facilitate its growth in heavy metal-rich environments.
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Affiliation(s)
- Ji-Hyun Yun
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Yong-Joon Cho
- ChunLab Inc., Seoul National University, Seoul, South Korea
| | - Jongsik Chun
- ChunLab Inc., Seoul National University, Seoul, South Korea
| | - Dong-Wook Hyun
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Jin-Woo Bae
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, South Korea
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