1
|
Wu Y, Wang S, Wu G, Zhang J, Liu S. Brachybacterium muris Detected in a Hepatocellular Carcinoma Patient with Pleural Effusion: A Case Report. Infect Drug Resist 2023; 16:3003-3006. [PMID: 37215301 PMCID: PMC10198177 DOI: 10.2147/idr.s406259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Background Brachybacterium muris is a species of Gram positive and strictly aerobic bacterium. It was first reported in 2003 after being isolated from the liver of a laboratory mouse strain. It was also found on human skin and nasal cavity. Herein, we present the first case pleural effusion infection in humans caused by Brachybacterium muris. Case Presentation A 65-year-old man was admitted to our hospital for a 4-week history of fever, accompanied by chills, occasional abdominal pain, occasional chest tightness and shortness of breath. On the day of hospitalization, thoracentesis was performed and 1000mL of yellow cloudy fluid was released. Result of pleural fluid culture was positive and B. muris was identified using 16S rDNA amplification and sequence comparisons. Conclusion To our knowledge, this is the first report of pleural effusion infection caused by B. muris. B. muris can be pathogenic in humans.
Collapse
Affiliation(s)
- YuJing Wu
- The Third Central Hospital of Tianjin, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Tianjin, People’s Republic of China
| | - Sumei Wang
- The Third Central Hospital of Tianjin, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Tianjin, People’s Republic of China
| | - Guangye Wu
- Second Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Traditional Chinese Medicine Rehabilitation Center, Tianjin, People’s Republic of China
| | - Jiandong Zhang
- The Third Central Hospital of Tianjin, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Tianjin, People’s Republic of China
| | - Shuye Liu
- The Third Central Hospital of Tianjin, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Tianjin, People’s Republic of China
| |
Collapse
|
2
|
Mandragutti T, Sudhakar G. Selective isolation and genomic characterization of biopolymer producer-a novel feature of halophile Brachybacterium paraconglomeratum MTCC 13074. J Genet Eng Biotechnol 2023; 21:24. [PMID: 36853280 PMCID: PMC9975135 DOI: 10.1186/s43141-023-00484-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 02/18/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND Biopolymers like polyhydroxyalkanoates (PHA) are the best natural macromolecules to use as alternative to the synthetic polymers. Many prokaryotes accumulate PHA as cytoplasmic intracellular granules and their accumulation is triggered by starving conditions. The PHAs are ecofriendly and used to create biodegradable plastics. The microbial synthesized PHA had acquired global importance in industrial and biomedical sectors. RESULTS Ten different bacterial strains were isolated for the screening of PHA producers from the estuarine region of the Bay of Bengal, Suryalanka in Bapatla. A yellowish slimy circular colony known as M4 is actively growing on selective minimal media and was screened for polymeric granules in its cytoplasm using Sudan Black B and confirmed with the fluorescent dye Nile blue A. All of the isolates were biochemically tested and isolate M4 is the most capable of growing at high NaCl concentrations (3.2 percent) and tests positive for catalase, methyl red. The M4 strain revealed clear hydrolysis of gelatin, starch, and casein. The 16S rRNA sequencing revealed that M4 is 99.72% of identity to Brachybacterium paraconglomeratum LMG 19861(T) in BLAST and the obtained strain was assigned with accession no. MTCC 13074 and deposited in NCBI with accession no. MW899045. The chief cellular fatty acids found in M4 were C14:0, C15:0, C16:0, C18:1cis-9, C18:0, iso-C15: 0, iso-C14: 0, anteiso-C17: 0 and C18:1-7. Crotonic acid formation from M4-PHB extract was detected at 235nm in a UV spectrophotometer. Methanolysis was done, and derivatives of polyhydroxybutyric acid (PHB) in the extract were analyzed using GC-MS. Increasing viscosity was seen in the extracts which confirms the presence of polymer in the extracts. Thermogravimetric analysis was studied to determine the thermal profile of the PHB in the extract of M4. CONCLUSION In the study, the selective screening and extraction of ecofriendly PHB from M4 strain was highlighted. Brachybacterium paraconglomeratum is a novel strain showed its uniqueness by producing few monomeric derivatives of PHB. The strain was reporting for the first time as PHA producer. B. paraconglomeratum has promising characteristics according to its metabolic profile. In addition, this study also helps to understand the diversity of bacteria isolated from marine sources.
Collapse
Affiliation(s)
- Teja Mandragutti
- Department of Biotechnology, Andhra University, Visakhapatnam, 530003, India.
| | - G. Sudhakar
- grid.411381.e0000 0001 0728 2694Department of Human Genetics, Andhra University, Visakhapatnam, India
| |
Collapse
|
3
|
Alam SA, Saha P. Biodegradation of p-nitrophenol by a member of the genus Brachybacterium, isolated from the river Ganges. 3 Biotech 2022; 12:213. [PMID: 35959168 PMCID: PMC9357598 DOI: 10.1007/s13205-022-03263-7] [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: 12/06/2021] [Accepted: 07/18/2022] [Indexed: 11/01/2022] Open
Abstract
A p-nitrophenol (PNP) degrading halotolerant, Gram-variable bacterial strain designated as DNPG3, was isolated from a water sample collected from the river Ganges in Hooghly, West Bengal (WB), India, by enrichment culture technique. Based on 16S rRNA gene sequence analysis (carried out at EzTaxon server and Ribosomal data base project site), the strain DNPG3 was identified as Brachybacterium sp., with B. zhongshanense strain JBT (97.08% identity) as it is nearest phylogenetic relative. The strain could tolerate up to 3 mM of PNP, while the optimal growth for the strain was recorded as 0.25 mM. The strain could carry out biodegradation of PNP with concomitant release of nitrite and p-benzoquinone (PBQ) was detected as a hydrolysis product. Under the catabolic condition, it could carry out 36% biodegradation of PNP within 144 h, while, under co-metabolic condition (with glucose), 100% biodegradation was achieved within 48 h at 30 °C. Calcium alginate bead-based cell immobilization studies (of the strain DNPG3) indicated complete biodegradation of PNP (under catabolic condition) within 26 h. This is the first report of PNP biodegradation by any representative strain of the genus Brachybacterium. The study definitely indicated that Brachybacterium sp. strain DNPG3 has biotechnological potential and the strain may be a suitable candidate for developing clean, green, eco-friendly, cost-effective bioremediation processes towards effective removal of PNP from the contaminated sites. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03263-7.
Collapse
Affiliation(s)
- Sk Aftabul Alam
- Department of Microbiology, The University of Burdwan, Golapbag, Burdwan, West Bengal 713104 India
| | - Pradipta Saha
- Department of Microbiology, The University of Burdwan, Golapbag, Burdwan, West Bengal 713104 India
| |
Collapse
|
4
|
Brachybacterium kimchii sp. nov. and Brachybacterium halotolerans subsp. kimchii subsp. nov., isolated from the Korean fermented vegetables, kimchi, and description of Brachybacterium halotolerans subsp. halotolerans subsp. nov. J Microbiol 2022; 60:678-688. [DOI: 10.1007/s12275-022-1581-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 11/27/2022]
|
5
|
Wiernasz N, Gigout F, Cardinal M, Cornet J, Rohloff J, Courcoux P, Vigneau E, Skírnisdottír S, Passerini D, Pilet MF, Leroi F. Effect of the Manufacturing Process on the Microbiota, Organoleptic Properties and Volatilome of Three Salmon-Based Products. Foods 2021; 10:foods10112517. [PMID: 34828798 PMCID: PMC8623285 DOI: 10.3390/foods10112517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 01/02/2023] Open
Abstract
Lightly preserved seafood products, such as cold-smoked fish and fish gravlax, are traditionally consumed in Europe and are of considerable economic importance. This work aimed to compare three products that were obtained from the same batch of fish: cold-smoked salmon (CSS) stored under vacuum packaging (VP) or a modified atmosphere packaging (MAP) and VP salmon dill gravlax (SG). Classical microbiological analyses and 16S rRNA metabarcoding, biochemical analyses (trimethylamine, total volatile basic nitrogen (TVBN), biogenic amines, pH, volatile organic compounds (VOCs)) and sensory analyses (quantitative descriptive analysis) were performed on each product throughout their storage at a chilled temperature. The three products shared the same initial microbiota, which were mainly dominated by Photobacterium, Lactococcus and Lactobacillus genera. On day 28, the VP CSS ecosystem was mainly composed of Photobacterium and, to a lesser extent, Lactococcus and Lactobacillus genera, while Lactobacillus was dominant in the MAP CSS. The diversity was higher in the SG, which was mainly dominated by Enterobacteriaceae, Photobacterium, Lactobacillus and Lactococcus. Although the sensory spoilage was generally weak, gravlax was the most perishable product (slight increase in amine and acidic off-odors and flavors, fatty appearance, slight discoloration and drop in firmness), followed by the VP CSS, while the MAP CSS did not spoil. Spoilage was associated with an increase in the TVBN, biogenic amines and spoilage associated VOCs, such as decanal, nonanal, hexadecanal, benzaldehyde, benzeneacetaldehyde, ethanol, 3-methyl-1-butanol, 2,3-butanediol, 1-octen-3-ol, 2-butanone and 1-octen-3-one. This study showed that the processing and packaging conditions both had an effect on the microbial composition and the quality of the final product.
Collapse
Affiliation(s)
- Norman Wiernasz
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
- UMR 1014, Secalim, INRAE, Oniris, 44307 Nantes, France;
| | - Frédérique Gigout
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
| | - Mireille Cardinal
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
| | - Josiane Cornet
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
| | - Jens Rohloff
- NTNU, Department of Biology, 7491 Trondheim, Norway;
| | | | | | - Sigurlaug Skírnisdottír
- Matıs, Research and Innovation, Exploitation and Utilization of Genetic Resources, 101-155 Reykjavik, Iceland;
| | - Delphine Passerini
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
| | | | - Françoise Leroi
- IFREMER, BRM, EM3B Laboratory, F-44300 Nantes, France; (N.W.); (F.G.); (M.C.); (J.C.); (D.P.)
- Correspondence:
| |
Collapse
|
6
|
Ming H, Cheng LJ, Yi BF, Xia TT, Niu MM, Zhao ZY, Liu BB, Nie GX, Cui CX. Brachybacterium subflavum sp. nov., a novel actinobacterium isolated from the foregut of grass carp. Int J Syst Evol Microbiol 2021; 71. [PMID: 34170217 DOI: 10.1099/ijsem.0.004839] [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: 11/18/2022] Open
Abstract
A novel actinobacterium, designated CFH 10395T, was isolated from the foregut of grass carp (Ctenopharyngodon idella), which had been fed with ginseng extract supplement. The taxonomic position was investigated by a polyphasic approach. Cells of CFH 10395T were Gram-staining-positive, aerobic, ovoid-shaped, non-spore-forming and non-motile. On the basis of the results of 16S rRNA gene sequence analysis, CFH 10395T was most closely related to Brachybacterium endophyticum KCTC 49087T, Brachybacterium squillarum JCM 16464T and Brachybacterium paraconglomeratum JCM 17781T (97.85%, 97.51 and 97.29% similarity, respectively). CFH 10395T grew at 4-37 °C, pH 5.0-9.0 and in the presence of up to 10.0 % NaCl (w/v). The dominant menaquinone was MK-7. The whole-cell sugars were rhamnose, glucose, mannose and galactose. meso-diaminopimelic acid was the diagnostic diamino acid in the cell-wall peptidoglycan. The major fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The genome size was 3.99 Mbp with a DNA G+C content of 71.9 mol%. On the basis of the results of phylogenetic analysis, physiological properties, chemotaxonomic characteristics, low average nucleotide identity (ANI) and digital DDH (dDDH) results [ANI calculated using MUMmer (ANIm) <87 %, ANI calculated using blast (ANIb) <83 % and dDDH <23 %], it is concluded that CFH 10395T represents a novel species of the genus Brachybacterium, for which the name Brachybacterium subflavum sp. nov., is proposed. The type strain is CFH 10395T (=CGMCC 1.13804T=KCTC 49235T).
Collapse
Affiliation(s)
- Hong Ming
- Synthetic Biology Engineering Lab of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 PR China
| | - Li-Jiao Cheng
- College of Fisheries, Henan Normal University, Xinxiang, 453007 PR China
| | - Bing-Fang Yi
- College of Fisheries, Henan Normal University, Xinxiang, 453007 PR China
| | - Ting-Ting Xia
- Synthetic Biology Engineering Lab of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 PR China
| | - Ming-Ming Niu
- College of Fisheries, Henan Normal University, Xinxiang, 453007 PR China
| | - Zi-Yu Zhao
- Synthetic Biology Engineering Lab of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 PR China
| | - Bing-Bing Liu
- Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, College of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, 473004 PR China
| | - Guo-Xing Nie
- College of Fisheries, Henan Normal University, Xinxiang, 453007 PR China
| | - Cai-Xia Cui
- Synthetic Biology Engineering Lab of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 PR China
| |
Collapse
|
7
|
Arcos SC, Lira F, Robertson L, González MR, Carballeda-Sangiao N, Sánchez-Alonso I, Zamorano L, Careche M, Jiménez-Ruíz Y, Ramos R, Llorens C, González-Muñoz M, Oliver A, Martínez JL, Navas A. Metagenomics Analysis Reveals an Extraordinary Inner Bacterial Diversity in Anisakids (Nematoda: Anisakidae) L3 Larvae. Microorganisms 2021; 9:1088. [PMID: 34069371 PMCID: PMC8158776 DOI: 10.3390/microorganisms9051088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 11/28/2022] Open
Abstract
L3 larvae of anisakid nematodes are an important problem for the fisheries industry and pose a potential risk for human health by acting as infectious agents causing allergies and as potential vectors of pathogens and microrganisms. In spite of the close bacteria-nematode relationship very little is known of the anisakids microbiota. Fresh fish could be contaminated by bacteria vectored in the cuticle or in the intestine of anisakids when the L3 larvae migrate through the muscles. As a consequence, the bacterial inoculum will be spread, with potential effects on the quality of the fish, and possible clinical effects cannot be discarded. A total of 2,689,113 16S rRNA gene sequences from a total of 113 L3 individuals obtained from fish captured along the FAO 27 fishing area were studied. Bacteria were taxonomically characterized through 1803 representative operational taxonomic units (OTUs) sequences. Fourteen phyla, 31 classes, 52 orders, 129 families and 187 genera were unambiguously identified. We have found as part of microbiome an average of 123 OTUs per L3 individual. Diversity indices (Shannon and Simpson) indicate an extraordinary diversity of bacteria at an OTU level. There are clusters of anisakids individuals (samples) defined by the associated bacteria which, however, are not significantly related to fish hosts or anisakid taxa. This suggests that association or relationship among bacteria in anisakids, exists without the influence of fishes or nematodes. The lack of relationships with hosts of anisakids taxa has to be expressed by the association among bacterial OTUs or other taxonomical levels which range from OTUs to the phylum level. There are significant biological structural associations of microbiota in anisakid nematodes which manifest in clusters of bacteria ranging from phylum to genus level, which could also be an indicator of fish contamination or the geographic zone of fish capture. Actinobacteria, Aquificae, Firmicutes, and Proteobacteria are the phyla whose abundance value discriminate for defining such structures.
Collapse
Affiliation(s)
- Susana C. Arcos
- Museo Nacional de Ciencias Naturales, Dpto Biodiversidad y Biología Evolutiva, CSIC, 28006 Madrid, Spain; (S.C.A.); (L.R.); (M.R.G.); (Y.J.-R.)
| | - Felipe Lira
- Centro Nacional de Biotecnología, Departamento de Biotecnología Microbiana, CSIC, 28049 Madrid, Spain; (F.L.); (J.L.M.)
| | - Lee Robertson
- Museo Nacional de Ciencias Naturales, Dpto Biodiversidad y Biología Evolutiva, CSIC, 28006 Madrid, Spain; (S.C.A.); (L.R.); (M.R.G.); (Y.J.-R.)
- Departamento de Protección Vegetal, INIA, 28040 Madrid, Spain
| | - María Rosa González
- Museo Nacional de Ciencias Naturales, Dpto Biodiversidad y Biología Evolutiva, CSIC, 28006 Madrid, Spain; (S.C.A.); (L.R.); (M.R.G.); (Y.J.-R.)
| | | | - Isabel Sánchez-Alonso
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, CSIC, 28040 Madrid, Spain; (I.S.-A.); (M.C.)
| | - Laura Zamorano
- Servicio de Microbiología y Unidad de Investigación, Hospital Son Espases, (IdISPa), 07120 Palma de Mallorca, Spain; (L.Z.); (A.O.)
| | - Mercedes Careche
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, CSIC, 28040 Madrid, Spain; (I.S.-A.); (M.C.)
| | - Yolanda Jiménez-Ruíz
- Museo Nacional de Ciencias Naturales, Dpto Biodiversidad y Biología Evolutiva, CSIC, 28006 Madrid, Spain; (S.C.A.); (L.R.); (M.R.G.); (Y.J.-R.)
| | - Ricardo Ramos
- Unidad de Genómica, “Scientific Park of Madrid”, Campus de Cantoblanco, 28049 Madrid, Spain;
| | - Carlos Llorens
- Biotechvana, “Scientific Park”, University of Valencia, 46980 Valencia, Spain;
| | - Miguel González-Muñoz
- Servicio de Immunología, Hospital Universitario La Paz, 28046 Madrid, Spain; (N.C.-S.); (M.G.-M.)
| | - Antonio Oliver
- Servicio de Microbiología y Unidad de Investigación, Hospital Son Espases, (IdISPa), 07120 Palma de Mallorca, Spain; (L.Z.); (A.O.)
| | - José L. Martínez
- Centro Nacional de Biotecnología, Departamento de Biotecnología Microbiana, CSIC, 28049 Madrid, Spain; (F.L.); (J.L.M.)
| | - Alfonso Navas
- Museo Nacional de Ciencias Naturales, Dpto Biodiversidad y Biología Evolutiva, CSIC, 28006 Madrid, Spain; (S.C.A.); (L.R.); (M.R.G.); (Y.J.-R.)
| |
Collapse
|
8
|
Mekhalif F, Tidjani Alou M, Zgheib R, Lo C, Fournier PE, Raoult D, Lagier JC. Brachybacterium massiliense sp. nov., a new bacterium isolated from stool from a healthy Senegalese child. New Microbes New Infect 2019; 31:100588. [PMID: 31463068 PMCID: PMC6710231 DOI: 10.1016/j.nmni.2019.100588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/12/2019] [Indexed: 12/22/2022] Open
Abstract
Based on our phenotypic and genotypic analyses, Brachybacterium massiliense strain Marseille-P2240T (= CSURP2240; = DSM 101766) is a new species isolated from stool of a healthy subject. The strain was stained Gram-positive. It was aerobic, catalase-positive and oxidase-negative. Its optimal growth occurs at 37°C in aerobic condition. The 16S ribosomal RNA sequence analysis revealed that strain Marseille-P2240T shown 98.18% similarity with Brachybacterium saurashtrense strain JG 06, the more closely related species with standing in nomenclature.
Collapse
Affiliation(s)
- F. Mekhalif
- Aix-Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - M. Tidjani Alou
- Aix-Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - R. Zgheib
- IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - C.I. Lo
- IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - P.-E. Fournier
- IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Université, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - D. Raoult
- Aix-Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - J.-C. Lagier
- Aix-Marseille Université, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| |
Collapse
|
9
|
Subramani R, Sipkema D. Marine Rare Actinomycetes: A Promising Source of Structurally Diverse and Unique Novel Natural Products. Mar Drugs 2019; 17:E249. [PMID: 31035452 PMCID: PMC6562664 DOI: 10.3390/md17050249] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 12/18/2022] Open
Abstract
Rare actinomycetes are prolific in the marine environment; however, knowledge about their diversity, distribution and biochemistry is limited. Marine rare actinomycetes represent a rather untapped source of chemically diverse secondary metabolites and novel bioactive compounds. In this review, we aim to summarize the present knowledge on the isolation, diversity, distribution and natural product discovery of marine rare actinomycetes reported from mid-2013 to 2017. A total of 97 new species, representing 9 novel genera and belonging to 27 families of marine rare actinomycetes have been reported, with the highest numbers of novel isolates from the families Pseudonocardiaceae, Demequinaceae, Micromonosporaceae and Nocardioidaceae. Additionally, this study reviewed 167 new bioactive compounds produced by 58 different rare actinomycete species representing 24 genera. Most of the compounds produced by the marine rare actinomycetes present antibacterial, antifungal, antiparasitic, anticancer or antimalarial activities. The highest numbers of natural products were derived from the genera Nocardiopsis, Micromonospora, Salinispora and Pseudonocardia. Members of the genus Micromonospora were revealed to be the richest source of chemically diverse and unique bioactive natural products.
Collapse
Affiliation(s)
- Ramesh Subramani
- School of Biological and Chemical Sciences, Faculty of Science, Technology & Environment, The University of the South Pacific, Laucala Campus, Private Mail Bag, Suva, Republic of Fiji.
| | - Detmer Sipkema
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| |
Collapse
|
10
|
Tuo L, Yan XR, Li FN, Bao YX, Shi HC, Li HY, Sun CH. Brachybacterium endophyticum sp. nov., a novel endophytic actinobacterium isolated from bark of Scutellaria baicalensis Georgi. Int J Syst Evol Microbiol 2018; 68:3563-3568. [DOI: 10.1099/ijsem.0.003032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Li Tuo
- 1Research Center for Medicine and Biology, Zunyi Medical University, Zunyi 563006, PR China
| | - Xiao-Rui Yan
- 1Research Center for Medicine and Biology, Zunyi Medical University, Zunyi 563006, PR China
| | - Fei-Na Li
- 2Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China
| | - Yu-Xin Bao
- 1Research Center for Medicine and Biology, Zunyi Medical University, Zunyi 563006, PR China
| | - Hui-Chang Shi
- 1Research Center for Medicine and Biology, Zunyi Medical University, Zunyi 563006, PR China
| | - Hong-Ying Li
- 1Research Center for Medicine and Biology, Zunyi Medical University, Zunyi 563006, PR China
| | - Cheng-Hang Sun
- 2Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China
| |
Collapse
|
11
|
Tak EJ, Kim PS, Hyun DW, Kim HS, Lee JY, Kang W, Sung H, Shin NR, Kim MS, Whon TW, Bae JW. Phenotypic and Genomic Properties of Brachybacterium vulturis sp. nov. and Brachybacterium avium sp. nov. Front Microbiol 2018; 9:1809. [PMID: 30131788 PMCID: PMC6090031 DOI: 10.3389/fmicb.2018.01809] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/18/2018] [Indexed: 11/16/2022] Open
Abstract
Two strains, VM2412T and VR2415T, were isolated from the feces of an Andean condor (Vultur gryphus) living in Seoul Grand Park, Gyeonggi-do, South Korea. Cells of both strains were observed to be Gram-stain positive, non-motile, aerobic, catalase positive and oxidase negative. Growth was found to occur at 10-30°C, showing optimum growth at 30°C. The strains could tolerate up to 15% (w/v) NaCl concentration and grow at pH 6-9. The strains shared 99.3% 16S rRNA gene sequence similarity to each other but were identified as two distinct species based on 89.0-89.2% ANIb, 90.3% ANIm, 89.7% OrthoANI and 38.0% dDDH values calculated using whole genome sequences. Among species with validly published names, Brachybacterium ginsengisoli DCY80T shared high 16S rRNA gene sequence similarities with strains VM2412T (98.7%) and VR2415T (98.4%) and close genetic relatedness with strains VM2412T (83.3–83.5% ANIb, 87.0% ANIm, 84.3% OrthoANI and 27.8% dDDH) and VR2415T (82.8–83.2% ANIb, 86.7% ANIm, 83.9% OrthoANI and 27.2% dDDH). The major fatty acid of the two strains was identified as anteiso-C15:0 and the polar lipids consisted of phosphatidylglycerol, diphosphatidylglycerol, presumptively phosphatidylethanolamine and three unidentified glycolipids. Strain VR2415T also produced an unidentified phospholipid. The cell walls of the two strains contained meso-diaminopimelic acid as diagnostic diamino acid and the whole cell sugars were ribose, glucose, and galactose. The strains contained MK-7 as their predominant menaquinone. The genomes of strains VM2412T, VR2415T, and B. ginsengisoli DCY80T were sequenced in this study. The genomic G+C contents of strains VM2412T and VR2415T were determined to be 70.8 and 70.4 mol%, respectively. A genome-based phylogenetic tree constructed using an up-to-date bacterial core gene set (UBCG) showed that the strains formed a clade with members of the genus Brachybacterium, supporting their taxonomic classification into the genus Brachybacterium. Based on phenotypic and genotypic analyses in this study, strains VM2412T and VR2415T are considered to represent two novel species of the genus Brachybacterium and the names Brachybacterium vulturis sp. nov. and Brachybacterium avium sp. nov. are proposed for strains VM2412T (=KCTC 39996T = JCM 32142T) and VR2415T (=KCTC 39997T = JCM 32143T), respectively.
Collapse
Affiliation(s)
- Euon J Tak
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Pil S Kim
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Dong-Wook Hyun
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Hyun S Kim
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - June-Young Lee
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Woorim Kang
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Hojun Sung
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Na-Ri Shin
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Min-Soo Kim
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Tae W Whon
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| | - Jin-Woo Bae
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, South Korea.,Department of Biology, Kyung Hee University, Seoul, South Korea
| |
Collapse
|