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Girão M, Lequint Z, Rego A, Costa I, Proença DN, Morais PV, Carvalho MF. Nocardiopsis codii sp. nov., and Rhodococcus chondri sp. nov., two novel actinomycetal species isolated from macroalgae collected in the northern Portuguese coast. Int J Syst Evol Microbiol 2024; 74. [PMID: 39255017 DOI: 10.1099/ijsem.0.006483] [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: 09/11/2024] Open
Abstract
Two novel actinomycetal strains, designated CC-R113T and CC-R104T, were isolated from the tissues of two macroalgae collected on the northern Portuguese coast. Phylogenetic analyses based on the 16S rRNA gene showed that strain CT-R113T belongs to the genus Nocardiopsis, being closely related to Nocardiopsis umidischolae 66/93T and Nocardiopsis tropica VKM Ac-1457T, with 98.65 and 98.39 % sequence similarity, respectively. The clade formed between the three type strains was confirmed by phylogenomic analysis. The genome of strain CT-R113T was 7.27 Mb in size with a G+C content of 71.3 mol %, with average nucleotide identity (ANI) values of 89.59 and 90.14 % with strains 66/93T and VKM Ac-1457T, respectively. The major cellular fatty acids were identified as C18 : 1 ω9c, iso-C16 : 0 and anteiso-C17 : 0. Menaquinone 10 (MK-10) was the major respiratory quinone. Comparative analysis of 16S rRNA gene sequences showed that strain CC-R104T belongs to the genus Rhodococcus and is most closely related to Rhodococcus pyridinivorans DSM 44555T, with 98.24 % sequence similarity. However, phylogenomic analysis revealed that strain CC-R104T establishes a clade with Rhodococcus artemisae DSM 45380T, being more distant from Rhodococcus pyridinivorans DSM 44555T. The genome of strain CC-R104T was 5.34 Mb in size with a G+C content of 67.01 mol%. The ANI value between strains CC-R104T and DSM 45380T was 81.2 % and between strains CC-R104T and DSM 44555T was 81.5 %. The major cellular fatty acids were identified as C18 : 1 ω9c, C16 : 0 and summed feature 3. Menaquinone 8 (MK-8) was the only respiratory quinone. For both CC-R113T and CC-R104T, optimum growth was observed at pH 7.0, 28 °C and 0-5 % NaCl and whole-cell hydrolysates contained meso-diaminopimelic acid as the cell-wall diamino acid. On the basis of phenotypic, molecular and chemotaxonomic characteristics, strains CT-R113T and CC-R104T are considered to represent novel species, for which the names Nocardiopsis codii sp. nov. (type strain CT-R113T=LMG33234T=UCCCB172T) and Rhodococcus chondri sp. nov. (type strain CC-R104T=LMG33233T=UCCCB171T) are proposed.
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Affiliation(s)
- Mariana Girão
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| | - Zoé Lequint
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- Polytech Clermont, University Clermont Auvergne, Clermont-Ferrand, France
| | - Adriana Rego
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
| | - Isabel Costa
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
| | - Diogo Neves Proença
- Department of Life Sciences, University of Coimbra, CEMMPRE, ARISE, Coimbra, Portugal
| | - Paula V Morais
- Department of Life Sciences, University of Coimbra, CEMMPRE, ARISE, Coimbra, Portugal
| | - Maria F Carvalho
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
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Djinni I, Conroy L, Varbanov M, Souagui S, Yanat B, Defant A, Kecha M, Mancini I. Bioprospecting the potential of metabolites from a Saharan saline soil strain Nocardiopsis dassonvillei GSBS4. J Basic Microbiol 2024; 64:50-67. [PMID: 37721354 DOI: 10.1002/jobm.202300162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/08/2023] [Accepted: 08/26/2023] [Indexed: 09/19/2023]
Abstract
Saharan soil samples collected in El-Oued province have been investigated for actinobacteria as a valuable source for the production of bioactive metabolites. A total of 273 isolates were obtained and subjected to antagonistic activity tests against human pathogenic germs. A strain with a broad-spectrum antimicrobial activity was selected and identified as Nocardiopsis dassonvillei GSBS4, with high sequence similarities to N. dassonvillei subsp. dassonvilleiT X97886.1 (99%) based on polyphasic taxonomy approach and 16S ribosomal ribonucleic acid gene sequence analysis. The GSBS4 ethyl acetate crude extract showed strong antibacterial activity towards pathogenic bacteria and Candida albicans. It inhibited biofilm formation by Staphylococcus aureus and methicillin-resistant S. aureus with minimum inhibitory concentrations estimated at 0.144 and 1.15 mg·mL-1 , respectively. A 44% biofilm reduction was obtained for S. aureus and 61% for Pseudomonas aeruginosa. Furthermore, phenols composition of the crude extract showed a significant dose-dependent antioxidant activity by α-diphenyl-β-picrylhydrazyl (57.21%) and 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (64.29%) radicals scavenging assays. Although no inhibition was obtained on human coronavirus human coronavirus (HCoV) 229E and on model enterovirus (poliovirus 1) infection, a dose-dependent increase in cell viability of HCoV 229E-infected cells was noticed as the viability increased from 21% to 37%. Bioassay-guided fractionation of the crude extract gave a fraction showing antibacterial activity, which was analyzed by liquid chromatography-electrospray mass spectrometric technique, providing structural features on a major purple metabolite.
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Affiliation(s)
- Ibtissem Djinni
- Département de Microbiologie, Laboratoire de Microbiologie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Povo Trento, Italy
| | - Leah Conroy
- Université de Lorraine, CNRS, Nancy, France
- RCSI School of Pharmacy and Biomolecular Sciences (PBS), Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Mihayl Varbanov
- Université de Lorraine, CNRS, Nancy, France
- Laboratoire de Virologie, CHRU de Nancy Brabois, Vandœuvre-lès-Nancy, France
| | - Samiha Souagui
- Département de Microbiologie, Laboratoire de Microbiologie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - Betitera Yanat
- Département de Microbiologie, Laboratoire de Biotechnologie Végétale et Ethnobotanique, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - Andrea Defant
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Povo Trento, Italy
| | - Mouloud Kecha
- Département de Microbiologie, Laboratoire de Microbiologie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - Ines Mancini
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Povo Trento, Italy
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Boudjelal F, Zitouni A, Bouras N, Spröer C, Klenk HP, Smaoui S, Mathieu F. Rare Halophilic Nocardiopsis from Algerian Saharan Soils as Tools for Biotechnological Processes in Pharmaceutical Industry. BIOMED RESEARCH INTERNATIONAL 2023; 2023:1061176. [PMID: 37284028 PMCID: PMC10241594 DOI: 10.1155/2023/1061176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/01/2023] [Accepted: 05/15/2023] [Indexed: 06/08/2023]
Abstract
The Sahara Desert, one of the most extreme ecosystems in the planet, constitutes an unexplored source of microorganisms such as mycelial bacteria. In this study, we investigated the diversity of halophilic actinobacteria in soils collected from five regions of the Algerian Sahara. A total of 23 halophilic actinobacterial strains were isolated by using a humic-vitamin agar medium supplemented with 10% NaCl. The isolated halophilic strains were subjected to taxonomic analysis using a polyphasic approach, which included morphological, chemotaxonomic, physiological (numerical taxonomy), and phylogenetic analyses. The isolates showed abundant growth in CMA (complex medium agar) and TSA (tryptic soy agar) media containing 10% NaCl, and chemotaxonomic characteristics were consistent with their assignment to the genus Nocardiopsis. Analysis of the 16S rRNA sequence of 23 isolates showed five distinct clusters and a similarity level ranging between 98.4% and 99.8% within the Nocardiopsis species. Comparison of their physiological characteristics with the nearest species showed significant differences with the closely related species. Halophilic Nocardiopsis isolated from Algerian Sahara soil represents a distinct phyletic line suggesting a potential new species. Furthermore, the isolated strains of halophilic Nocardiopsis were screened for their antagonistic properties against a broad spectrum of microorganisms by the conventional agar method (agar cylinders method) and found to have the capacity to produce bioactive secondary metabolites. Except one isolate (AH37), all isolated Nocardiopsis showed moderate to high biological activities against Pseudomonas syringae and Salmonella enterica, and some isolates showed activities against Agrobacterium tumefaciens, Serratia marcescens, and Klebsiella pneumoniae. However, no isolates were active against Bacillus subtilis, Aspergillus flavus, or Aspergillus niger. The obtained finding implies that the unexplored extreme environments such as the Sahara contain many new bacterial species as a novel drug source for medical and industrial applications.
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Affiliation(s)
- Farida Boudjelal
- Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria
- Faculty of Biological Sciences (FSB), University of Sciences and Technologies Houari Boumediene (USTHB), BP 32 El Alia, Bab Ezzouar, 16111 Algiers, Algeria
| | - Abdelghani Zitouni
- Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria
| | - Noureddine Bouras
- Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria
- Laboratoire de Valorisation et Conservation des Écosystèmes Arides (LVCEA), Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre, Université de Ghardaia, Ghardaia, Algeria
| | - Cathrin Spröer
- Department Bioinformatics and Databases, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures GmbH, Brunswick, Germany
| | - Hans-Peter Klenk
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Slim Smaoui
- Laboratory of Microbial Biotechnology and Engineering Enzymes (LMBEE), Center of Biotechnology of Sfax (CBS), University of Sfax, Road of Sidi Mansour Km 6, P.O. Box 1177 3018 Sfax, Tunisia
| | - Florence Mathieu
- Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, Université de Toulouse, Avenue de l'Agrobiopôle, 31326 Castanet-Tolosan, France
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Efimenko TA, Yakushev AV, Karabanova AA, Glukhova AA, Demiankova MV, Vasilieva BF, Boykova YV, Malkina ND, Terekhova LP, Efremenkova OV. Antimicrobial Activity of Bacteria Isolated from the Millipedes Nedyopus dawydoffiae and Orthomorpha sp. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722700023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Complete Genome Sequence of Nocardiopsis exhalans Strain JCM 11759
T
, Isolated from Indoor Air of a Water-Damaged Private House in Finland. Microbiol Resour Announc 2022; 11:e0093022. [DOI: 10.1128/mra.00930-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The genus
Nocardiopsis
contains pharmaceutically and biotechnologically important species that produce a wide variety of secondary metabolites with a wide range of biological activities. Here, we report the complete genome sequence of
Nocardiopsis exhalans
JCM 11759
T
for a better understanding of its metabolic characteristics and toxin synthesis pathway.
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Genus Nocardiopsis: A Prolific Producer of Natural Products. Mar Drugs 2022; 20:md20060374. [PMID: 35736177 PMCID: PMC9231205 DOI: 10.3390/md20060374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/01/2023] Open
Abstract
Actinomycetes are currently one of the major sources of bioactive secondary metabolites used for medicine development. Accumulating evidence has shown that Nocardiopsis, a key class of actinomycetes, has the ability to produce novel bioactive natural products. This review covers the sources, distribution, bioactivities, biosynthesis, and structural characteristics of compounds isolated from Nocardiopsis in the period between March 2018 and 2021. Our results reveal that 67% of Nocardiopsis-derived natural products are reported for the first time, and 73% of them are isolated from marine Nocardiopsis. The chemical structures of the Nocardiopsis-derived compounds have diverse skeletons, concentrating on the categories of polyketides, peptides, terphenyls, and alkaloids. Almost 50% of the natural products isolated from Nocardiopsis have been discovered to display various bioactivities. These results fully demonstrate the great potential of the genus Nocardiopsis to produce novel bioactive secondary metabolites that may serve as a structural foundation for the development of novel drugs.
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Du Z, Sun L, Lin Y, Chen C, Yang F, Cai Y. Use of Napier grass and rice straw hay as exogenous additive improves microbial community and fermentation quality of paper mulberry silage. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Widada J, Damayanti E, Alhakim MR, Yuwono T, Mustofa M. Two strains of airborne Nocardiopsis alba producing different volatile organic compounds (VOCs) as biofungicide for Ganoderma boninense. FEMS Microbiol Lett 2021; 368:6425125. [PMID: 34758070 DOI: 10.1093/femsle/fnab138] [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] [Received: 10/06/2021] [Accepted: 10/25/2021] [Indexed: 12/25/2022] Open
Abstract
Nocardiopsis are actinobacteria which produce active compounds, such as antifungals and volatile compounds. Ganoderma boninense is a pathogenic and aggressive fungus that decreases palm oil yield during production. In this study, we isolated two strains of Nocardia (GME01 and GME22) from airborne contaminants on the actinobacteria culture collection in the laboratory. The aim of this study is to identify two strains of Nocardiopsis and to obtain the antifungal potency of volatile organic compounds (VOCs) against G. boninese. We characterized the morphology using Scanning Electrone Microscope (SEM), molecular properties and whole-cell protein spectra using Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS), antifungal assay on G. boninense and VOCs analysis of Nocardia using solid phase micro extraction/gas chromatography (SPME/GC). The two Nocardiopsis strains had the similar characteristic such as white aerial mycelium and spores, aerobic, grow well on ISP-2, TSA and NA medium without diffusible pigment and had the highest similarity with Nocardiopsis alba DSM 43377 (99.63% and 99.55% similarity for GME01 and GME22, respectively), Different morphological feature was found in aerial mycelium and spores. GME22 has a clearly fragmented mycelium whereas GME01 has none. Other features also showed different on the whole-cell protein spectra, antifungal activity and VOCs profiles. Antifungal activity assay on G. boninense showed that N. alba GME22 has higher antifungal activity than GME01 related with the VOCs abundance in two strains. Almost 38.3% (18 VOCs) of N. alba GME22 and 25.5% (12 VOCs) of N. alba GME01 were found specifically in each strain, and 36.2% (the 17 same VOCs) produced by both. The known volatile antifungal compounds S-methyl ethanethioate, 1,2-dimethyldisulfane, acetic acid, 2-methyl propanoic acid, 3-methyl-butanoic acid, nonan-2-one, undecan-2-one and 2-isopropyl-5-methylcyclohexan-1-ol only produced by N. alba GME22 and 1,3-dimethyltrisulfane only produced by N. alba GME01. A total of two known antifungal compounds 1,2-dimethyldisulfane and 6-methylheptan-2-one were produced by both N. alba. The abundance of antifungal VOCs produced by these bacteria is potentially to be used as biocontrol agent for pathogenic fungi in plants.
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Affiliation(s)
- Jaka Widada
- Department of Agricultural Microbiology, Faculty of Agriculture, Jl. Flora No. 1, Bulaksumur, Yogyakarta, Indonesia
| | - Ema Damayanti
- Research Division for Natural Product Technology, Indonesian Institute of Sciences, Jl. Jogja Wonosari KM 31.5, Gunungkidul, Yogyakarta, Indonesia.,National Research and Innovation Agency, Yogyakarta, Indonesia
| | - Mohammad Ryan Alhakim
- Department of Agricultural Microbiology, Faculty of Agriculture, Jl. Flora No. 1, Bulaksumur, Yogyakarta, Indonesia
| | - Triwibowo Yuwono
- Department of Agricultural Microbiology, Faculty of Agriculture, Jl. Flora No. 1, Bulaksumur, Yogyakarta, Indonesia
| | - Mustofa Mustofa
- Department of Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Jl. Farmako, Sekip Utara, Bulaksumur, Yogyakarta, Indonesia
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Andersson (AMA, Salo J, Mikkola R, Marik T, Kredics L, Kurnitski J, Salonen H. Melinacidin-Producing Acrostalagmus luteoalbus, a Major Constituent of Mixed Mycobiota Contaminating Insulation Material in an Outdoor Wall. Pathogens 2021; 10:pathogens10070843. [PMID: 34357993 PMCID: PMC8308789 DOI: 10.3390/pathogens10070843] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 11/16/2022] Open
Abstract
Occupants may complain about indoor air quality in closed spaces where the officially approved standard methods for indoor air quality risk assessment fail to reveal the cause of the problem. This study describes a rare genus not previously detected in Finnish buildings, Acrostalagmus, and its species A. luteoalbus as the major constituents of the mixed microbiota in the wet cork liner from an outdoor wall. Representatives of the genus were also present in the settled dust in offices where occupants suffered from symptoms related to the indoor air. One strain, POB8, was identified as A. luteoalbus by ITS sequencing. The strain produced the immunosuppressive and cytotoxic melinacidins II, III, and IV, as evidenced by mass spectrometry analysis. In addition, the classical toxigenic species indicating water damage, mycoparasitic Trichoderma, Aspergillus section Versicolores, Aspergillus section Circumdati, Aspergillus section Nigri, and Chaetomium spp., were detected in the wet outdoor wall and settled dust from the problematic rooms. The offices exhibited no visible signs of microbial growth, and the airborne load of microbial conidia was too low to explain the reported symptoms. In conclusion, we suggest the possible migration of microbial bioactive metabolites from the wet outdoor wall into indoor spaces as a plausible explanation for the reported complaints.
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Affiliation(s)
- (Aino) Maria A. Andersson
- Department of Civil Engineering, Aalto University, P.O. Box 12100, FI-00076 Aalto, Finland; (J.S.); (R.M.); (J.K.); (H.S.)
- Correspondence: ; Tel.: +358-405508934
| | - Johanna Salo
- Department of Civil Engineering, Aalto University, P.O. Box 12100, FI-00076 Aalto, Finland; (J.S.); (R.M.); (J.K.); (H.S.)
| | - Raimo Mikkola
- Department of Civil Engineering, Aalto University, P.O. Box 12100, FI-00076 Aalto, Finland; (J.S.); (R.M.); (J.K.); (H.S.)
| | - Tamás Marik
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H-6726 Szeged, Hungary; (T.M.); (L.K.)
| | - László Kredics
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H-6726 Szeged, Hungary; (T.M.); (L.K.)
| | - Jarek Kurnitski
- Department of Civil Engineering, Aalto University, P.O. Box 12100, FI-00076 Aalto, Finland; (J.S.); (R.M.); (J.K.); (H.S.)
- Department of Civil Engineering and Architecture, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
| | - Heidi Salonen
- Department of Civil Engineering, Aalto University, P.O. Box 12100, FI-00076 Aalto, Finland; (J.S.); (R.M.); (J.K.); (H.S.)
- International Laboratory for Air Quality and Health, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, Australia
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10
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Pan HQ, Zhang DF, Li L, Jiang Z, Cheng J, Zhang YG, Wang HF, Hu JC, Li WJ. Nocardiopsis oceani sp. nov. and Nocardiopsis nanhaiensis sp. nov., actinomycetes isolated from marine sediment of the South China Sea. Int J Syst Evol Microbiol 2016; 65:3384-3391. [PMID: 26297579 DOI: 10.1099/ijsem.0.000425] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two actinomycete strains, designated 10A08AT and 10A08BT, were isolated from marine sediment samples of the South China Sea and their taxonomic positions were determined by a polyphasic approach. The two Gram-stain-positive, aerobic strains produced branched substrate mycelium and aerial hyphae, and no diffusible pigment was produced in the media tested. At maturity, spore chains were formed on aerial hyphae and all mycelium fragmented with age. Whole-cell hydrolysates of both strains contained meso-diaminopimelic acid and no diagnostic sugars. Their predominant menaquinones (>10 %) were MK-9(H4), MK-9(H6) and MK-10(H6) for strain 10A08AT and MK-9(H4), MK-9(H6), MK-10(H4) and MK-10(H6) for strain 10A08BT. The polar lipids detected from the two strains were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine and unknown phosphoglycolipids and phospholipids. The major fatty acids (>10 %) of both strains were iso-C16 : 0 and summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B). The genomic DNA G+C contents of strains 10A08AT and 10A08BT were 70.9 and 71.6 mol%, respectively. On the basis of 16S rRNA gene sequence similarities, the two strains were shown to be most closely related to species of the genus Nocardiopsis. DNA–DNA hybridization relatedness values of < 70 % between these two isolates and their closest neighbour, Nocardiopsis terrae YIM 90022T, and between the two strains supported the conclusion that they represent two novel species. Based on phylogenetic analysis and phenotypic and genotypic data, it is concluded that the two isolates belong to the genus Nocardiopsis, and the names Nocardiopsis oceani sp. nov. (type strain 10A08AT = DSM 45931T = BCRC 16951T) and Nocardiopsis nanhaiensis sp. nov. (type strain 10A08BT = CGMCC 47227T = BCRC 16952T) are proposed.
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Affiliation(s)
- Hua-Qi Pan
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Dao-Feng Zhang
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PR China.,Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, CAS, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PR China
| | - Zhao Jiang
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Juan Cheng
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, CAS, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PR China
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, CAS, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PR China
| | - Jiang-Chun Hu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PR China.,Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China.,Key Laboratory of Biogeography and Bioresource in Arid Land, CAS, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PR China
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11
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Akhwale JK, Göker M, Rohde M, Schumann P, Boga HI, Klenk HP. Nocardiopsis mwathae sp. nov., isolated from the haloalkaline Lake Elmenteita in the African Rift Valley. Antonie van Leeuwenhoek 2016; 109:421-30. [DOI: 10.1007/s10482-016-0647-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 01/04/2016] [Indexed: 11/27/2022]
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Bennur T, Ravi Kumar A, Zinjarde S, Javdekar V. Nocardiopsis
species: a potential source of bioactive compounds. J Appl Microbiol 2015; 120:1-16. [DOI: 10.1111/jam.12950] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/16/2015] [Accepted: 07/07/2015] [Indexed: 12/12/2022]
Affiliation(s)
- T. Bennur
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - A. Ravi Kumar
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - S.S. Zinjarde
- Institute of Bioinformatics and Biotechnology; Savitribai Phule Pune University; Pune India
| | - V. Javdekar
- Department of Biotechnology; Abasaheb Garware College; Pune India
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13
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Biogeography of Nocardiopsis strains from hypersaline environments of Yunnan and Xinjiang Provinces, western China. Sci Rep 2015; 5:13323. [PMID: 26289784 PMCID: PMC4542603 DOI: 10.1038/srep13323] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 07/23/2015] [Indexed: 12/19/2022] Open
Abstract
The genus Nocardiopsis is a widespread group within the phylum Actinobacteria and has been isolated from various salty environments worldwide. However, little is known about whether biogeography affects Nocardiopsis distribution in various hypersaline environments. Such information is essential for understanding the ecology of Nocardiopsis. Here we analyzed 16S rRNA, gyrB, rpoB and sodA genes of 78 Nocardiopsis strains isolated from hypersaline environments in Yunnan and Xinjiang Provinces of western China. The obtained Nocardiopsis strains were classified into five operational taxonomic units, each comprising location-specific phylo- and genotypes. Statistical analyses showed that spatial distance and environmental factors substantially influenced Nocardiopsis distribution in hypersaline environments: the former had stronger influence at large spatial scales, whereas the latter was more influential at small spatial scales.
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Bennur T, Kumar AR, Zinjarde S, Javdekar V. Nocardiopsis species: Incidence, ecological roles and adaptations. Microbiol Res 2015; 174:33-47. [PMID: 25946327 DOI: 10.1016/j.micres.2015.03.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 03/13/2015] [Accepted: 03/16/2015] [Indexed: 12/23/2022]
Abstract
Members of the genus Nocardiopsis are ecologically versatile and biotechnologically important. They produce a variety of bioactive compounds such as antimicrobial agents, anticancer substances, tumor inducers, toxins and immunomodulators. They also secrete novel extracellular enzymes such as amylases, chitinases, cellulases, β-glucanases, inulinases, xylanases and proteases. Nocardiopsis species are aerobic, Gram-positive, non-acid-fast, catalase-positive actinomycetes with nocardioform substrate mycelia and their aerial mycelia bear long chains of spores. Their DNA possesses high contents of guanine and cytosine. There is a marked variation in properties of the isolates obtained from different ecological niches and their products. An important feature of several species is their halophilic or halotolerant nature. They are associated with a variety of marine and terrestrial biological forms wherein they produce antibiotics and toxins that help their hosts in evading pathogens and predators. Two Nocardiopsis species, namely, N. dassonvillei and N. synnemataformans (among the thirty nine reported ones) are opportunistic human pathogens and cause mycetoma, suppurative infections and abscesses. Nocardiopsis species are present in some plants (as endophytes or surface microflora) and their rhizospheres. Here, they are reported to produce enzymes such as α-amylases and antifungal agents that are effective in warding-off plant pathogens. They are prevalent as free-living entities in terrestrial locales, indoor locations, marine ecosystems and hypersaline habitats on account of their salt-, alkali- and desiccation-resistant behavior. In such natural locations, Nocardiopsis species mainly help in recycling organic compounds. Survival under these diverse conditions is mediated by the production of extracellular enzymes, antibiotics, surfactants, and the accumulation of compatible solutes. The accommodative genomic features of Nocardiopsis species support their existence under the diverse conditions where they prevail.
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Affiliation(s)
- Tahsin Bennur
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India
| | - Ameeta Ravi Kumar
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India
| | - Smita Zinjarde
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India.
| | - Vaishali Javdekar
- Department of Biotechnology, Abasaheb Garware College, Pune 411004, India.
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15
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Hamedi J, Mohammadipanah F, Panahi HKS. Biotechnological Exploitation of Actinobacterial Members. SUSTAINABLE DEVELOPMENT AND BIODIVERSITY 2015. [DOI: 10.1007/978-3-319-14595-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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16
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Adhikari A, Kettleson EM, Vesper S, Kumar S, Popham DL, Schaffer C, Indugula R, Chatterjee K, Allam KK, Grinshpun SA, Reponen T. Dustborne and airborne Gram-positive and Gram-negative bacteria in high versus low ERMI homes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 482-483:92-9. [PMID: 24642096 PMCID: PMC4046584 DOI: 10.1016/j.scitotenv.2014.02.110] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/27/2014] [Accepted: 02/24/2014] [Indexed: 04/13/2023]
Abstract
The study aimed at investigating Gram-positive and Gram-negative bacteria in moldy and non-moldy homes, as defined by the home's Environmental Relative Moldiness Index (ERMI) value. The ERMI values were determined from floor dust samples in 2010 and 2011 and homes were classified into low (<5) and high (>5) ERMI groups based on the average ERMI values as well as 2011 ERMI values. Dust and air samples were collected from the homes in 2011 and all samples were analyzed for Gram-positive and Gram-negative bacteria using QPCR assays, endotoxin by the LAL assay, and N-acetyl-muramic acid using HPLC. In addition, air samples were analyzed for culturable bacteria. When average ERMI values were considered, the concentration and load of Gram-positive bacteria determined with QPCR in house dust, but not air, were significantly greater in high ERMI homes than in low ERMI homes. Furthermore, the concentration of endotoxin, but not muramic acid, in the dust was significantly greater in high ERMI than in low ERMI homes. In contrast, when ERMI values of 2011 were considered, Gram-negative bacteria determined with QPCR in air, endotoxin in air, and muramic acid in dust were significantly greater in high ERMI homes. The results suggest that both short-term and long-term mold contamination in homes could be linked with the bacterial concentrations in house dust, however, only the current mold status was associated with bacterial concentrations in air. Although correlations were found between endotoxin and Gram-negative bacteria as well as between muramic acid and Gram-positive bacteria in the entire data set, diverging associations were observed between the different measures of bacteria and the home moldiness. It is likely that concentrations of cells obtained by QPCR and concentrations of cell wall components are not equivalent and represent too broad categories to understand the bacterial composition and sources of the home microbiota.
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Affiliation(s)
- Atin Adhikari
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States.
| | - Eric M Kettleson
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Stephen Vesper
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, OH 45268, United States
| | - Sudhir Kumar
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - David L Popham
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, United States
| | - Christopher Schaffer
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Reshmi Indugula
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Kanistha Chatterjee
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Karteek K Allam
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Sergey A Grinshpun
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
| | - Tiina Reponen
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, United States
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17
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Paściak M, Pawlik K, Gamian A, Szponar B, Skóra J, Gutarowska B. An airborne actinobacteria Nocardiopsis alba isolated from bioaerosol of a mushroom compost facility. AEROBIOLOGIA 2014; 30:413-422. [PMID: 25382928 PMCID: PMC4218971 DOI: 10.1007/s10453-014-9336-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 03/27/2014] [Indexed: 05/25/2023]
Abstract
Actinobacteria are widely distributed in many environments and represent the most important trigger to the occupant respiratory health. Health complaints, including hypersensitivity pneumonitis of the workers, were recorded in a mushroom compost facility (MCF). The studies on the airborne bacteria were carried out to find a possible microbiological source of these symptoms. Culture analysis of compost bioaerosols collected in different location of the MCF was performed. An assessment of the indoor microbial exposure revealed bacterial flora of bioaerosol in the mushroom compost facility represented by Bacillus, Geobacillus, Micrococcus, Pseudomonas, Staphylococcus spp., and actinobacterial strain with white aerial mycelium. The thermotolerant actinobacterial strain of the same morphology was repeatedly isolated from many locations in MCF: air, compost sample, and solid surface in production hall. On the base of complex morphological, chemotaxonomic, and phylogenetic characteristics, the isolate has been classified as Nocardiopsis alba. Dominant position of N. alba in microbial environment of the mushroom compost facility may represent an indicator microorganism in compost bioaerosol. The bioavailability of N. alba in mushroom compost facility creates potential risk for the health of workers, and the protection of respiratory tract and/or skin is strongly recommended.
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Affiliation(s)
- Mariola Paściak
- Laboratory of Medical Microbiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Krzysztof Pawlik
- Laboratory of Molecular Biology of Microorganisms, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Andrzej Gamian
- Laboratory of Medical Microbiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Bogumiła Szponar
- Laboratory of Medical Microbiology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Justyna Skóra
- Institute of Fermentation Technology and Microbiology, Technical University of Łódź, Wólczańska 171/173, 90-924 Lodz, Poland
| | - Beata Gutarowska
- Institute of Fermentation Technology and Microbiology, Technical University of Łódź, Wólczańska 171/173, 90-924 Lodz, Poland
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18
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Kettleson E, Kumar S, Reponen T, Vesper S, Méheust D, Grinshpun SA, Adhikari A. Stenotrophomonas, Mycobacterium, and Streptomyces in home dust and air: associations with moldiness and other home/family characteristics. INDOOR AIR 2013; 23:387-96. [PMID: 23397905 PMCID: PMC3679357 DOI: 10.1111/ina.12035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 02/06/2013] [Indexed: 05/15/2023]
Abstract
Respiratory illnesses have been linked to children's exposures to water-damaged homes. Therefore, understanding the microbiome in water-damaged homes is critical to preventing these illnesses. Few studies have quantified bacterial contamination, especially specific species, in water-damaged homes. We collected air and dust samples in twenty-one low-mold homes and twenty-one high-mold homes. The concentrations of three bacteria/genera, Stenotrophomonas maltophilia, Streptomyces sp., and Mycobacterium sp., were measured in air and dust samples using quantitative PCR (QPCR). The concentrations of the bacteria measured in the air samples were not associated with any specific home characteristic based on multiple regression models. However, higher concentrations of S. maltophilia in the dust samples were associated with water damage, that is, with higher floor surface moisture and higher concentrations of moisture-related mold species. The concentrations of Streptomyces and Mycobacterium sp. had similar patterns and may be partially determined by human and animal occupants and outdoor sources of these bacteria.
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Affiliation(s)
- E. Kettleson
- Department of Environmental HealthUniversity of CincinnatiCincinnatiOHUSA
| | - S. Kumar
- Department of Environmental HealthUniversity of CincinnatiCincinnatiOHUSA
| | - T. Reponen
- Department of Environmental HealthUniversity of CincinnatiCincinnatiOHUSA
| | - S. Vesper
- United States Environmental Protection AgencyCincinnatiOHUSA
| | - D. Méheust
- Institut National de la Santé et de la Recherche Médicale (Inserm), U1085Institut de Recherche Santé, Environnement & Travail (IRSET)RennesFrance
| | - S. A. Grinshpun
- Department of Environmental HealthUniversity of CincinnatiCincinnatiOHUSA
| | - A. Adhikari
- Department of Environmental HealthUniversity of CincinnatiCincinnatiOHUSA
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19
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Whole-genome sequence of Nocardiopsis alba strain ATCC BAA-2165, associated with honeybees. J Bacteriol 2013; 194:6358-9. [PMID: 23105086 DOI: 10.1128/jb.01522-12] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The actinomycete Nocardiopsis alba was reportedly associated with honeybees in separate occurrences. We report the complete genome of Nocardiopsis alba ATCC BAA-2165 isolated from honeybee guts. It will provide insights into the metabolism and genetic regulatory networks of this genus of bacteria that enable them to live in a range of environments.
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20
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Kim MC, Kwon OW, Park JS, Kim SY, Kwon HC. Nocapyrones H–J, 3,6-Disubstituted α-Pyrones from the Marine Actinomycete Nocardiopsis sp. KMF-001. Chem Pharm Bull (Tokyo) 2013; 61:511-5. [DOI: 10.1248/cpb.c12-00956] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Min Cheol Kim
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung
- Graduate School of East-West Medical Science, Kyung Hee University
| | - Oh-Wook Kwon
- Graduate School of East-West Medical Science, Kyung Hee University
| | - Jin-Soo Park
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung
| | | | - Hak Cheol Kwon
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung
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21
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Li J, Yang J, Zhu WY, He J, Tian XP, Xie Q, Zhang S, Li WJ. Nocardiopsis coralliicola sp. nov., isolated from the gorgonian coral, Menella praelonga. Int J Syst Evol Microbiol 2012; 62:1653-1658. [PMID: 21890725 DOI: 10.1099/ijs.0.035402-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An actinobacterial strain, SCSIO 10427T, was isolated from a gorgonian coral sample collected from Weizhou Island, Guangxi province, China, and its taxonomic position was investigated using a polyphasic approach. The organism was found to have a range of chemical and morphological properties consistent with its classification in the genus
Nocardiopsis
. Phylogenetic analysis indicated that 16S rRNA gene sequence similarity between strain SCSIO 10427T and type strains of other recognized members of the genus
Nocardiopsis
was lower than 98.4 %. Furthermore, phenotypic characteristics revealed that the strain differed from the currently recognized species of the genus
Nocardiopsis
. Therefore, strain SCSIO 10427T represents a novel species of the genus
Nocardiopsis
, for which the name Nocardiopsis coralliicola sp. nov. is proposed. The type strain is SCSIO 10427T ( = CCTCC AA 2011010T = DSM 45611T).
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Affiliation(s)
- Jie Li
- Key Laboratory of Marine Bio-resources Sustainable Utilization CAS, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China
| | - Jian Yang
- Key Laboratory of Marine Bio-resources Sustainable Utilization CAS, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China
| | - Wen-Yong Zhu
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Jie He
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Xin-Peng Tian
- Key Laboratory of Marine Bio-resources Sustainable Utilization CAS, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China
| | - Qiong Xie
- State Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, PR China
| | - Si Zhang
- Key Laboratory of Marine Bio-resources Sustainable Utilization CAS, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China
| | - Wen-Jun Li
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education and Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
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22
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Fatty-acid compositions of marine isolates of the actinobacteria Nocardiopsis umidischolae KMM 7036 and Streptomyces sp. KMM 7210. Chem Nat Compd 2012. [DOI: 10.1007/s10600-012-0226-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Sobolevskaya MP, Lipko IA, Moiseenko OP, Parfenova VV, Afiyatullov SS. Fatty-acid composition of several Lake Baikal streptomycetes. Chem Nat Compd 2012. [DOI: 10.1007/s10600-012-0093-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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24
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Fang C, Zhang J, Pang H, Li Y, Xin Y, Zhang Y. Nocardiopsis flavescens sp. nov., an actinomycete isolated from marine sediment. Int J Syst Evol Microbiol 2011; 61:2640-2645. [DOI: 10.1099/ijs.0.027987-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-positive, aerobic bacterium, strain SA6T, was isolated from marine sediment taken at a depth of 20 cm on the seashore of Lianyungang, Jiangsu Province, China. Strain SA6T contained meso-diaminopimelic acid, no diagnostic sugars, type PIII phospholipids, and MK-10(H2) and MK-10(H4) as the predominant menaquinones. The organism showed a range of chemical and morphological properties consistent with its classification in the genus Nocardiopsis. The almost-complete 16S rRNA gene sequence of strain SA6T was aligned with corresponding sequences of representatives of the genus Nocardiopsis and related taxa by using two tree-making algorithms. Strain SA6T formed a distinct phyletic line within the evolutionary radiation occupied by the genus Nocardiopsis and was related most closely to the type strain of Nocardiopsis lucentensis. Strain SA6T could be distinguished from its nearest phylogenetic relatives in the genus Nocardiopsis based on DNA–DNA relatedness data and a combination of phenotypic properties. Strain SA6T should therefore be assigned to the genus Nocardiopsis as a representative of a novel species, for which the name Nocardiopsis flavescens sp. nov. is proposed. The type strain is SA6T ( = CGMCC 4.5723T = JCM 17424T).
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Affiliation(s)
- Caiyuan Fang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Jianli Zhang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Huancheng Pang
- Institute of Agri-resources and Regional Planning, CAAS, Beijing 100081, PR China
| | - Yuyi Li
- Institute of Agri-resources and Regional Planning, CAAS, Beijing 100081, PR China
| | - Yuhua Xin
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yabo Zhang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
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Johansson E, Vesper S, Levin L, LeMasters G, Grinshpun S, Reponen T. Streptomycetes in house dust: associations with housing characteristics and endotoxin. INDOOR AIR 2011; 21:300-10. [PMID: 21204988 PMCID: PMC3097268 DOI: 10.1111/j.1600-0668.2010.00702.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In addition to mold, indoor bioaerosols also contain bacterial components that may have implications for human health. Endotoxin is a cell wall component in Gram-negative bacteria present at varying levels indoors that has been found to have respiratory health implications. Streptomyces is a large genus of Gram-positive bacteria, and some species have been shown to produce inflammatory reactions in vitro and in vivo. The aim of this study was to determine predictors of streptomycetes levels in house dust and to compare the variation in streptomycetes levels with that in endotoxin levels. Dust was collected by floor vacuuming from 178 homes in the Cincinnati metropolitan area. Streptomycetes levels were measured by quantitative PCR, and endotoxin was assayed by the Limulus amebocyte lysate method. Associations between home characteristics and bacterial contaminants, expressed as concentration and load, were investigated through multiple regression analyses. The presence of two or more dogs was a strong predictor of both streptomycetes and endotoxin levels. Season of dust collection and levels of outdoor molds were predictors of streptomycetes but not endotoxin levels. In contrast, number of inhabitants was a significant predictor of endotoxin load only. Neither streptomycetes nor endotoxin levels were associated with metrics of moisture damage.
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Affiliation(s)
- Elisabet Johansson
- Department of Environmental Health, University of Cincinnati, Box 670056, Cincinnati, OH 45267-0056, USA
| | - Stephen Vesper
- US Environmental Protection Agency, 26 W. M. L. King Drive, Cincinnati, OH 45268, USA
| | - Linda Levin
- Department of Environmental Health, University of Cincinnati, Box 670056, Cincinnati, OH 45267-0056, USA
| | - Grace LeMasters
- Department of Environmental Health, University of Cincinnati, Box 670056, Cincinnati, OH 45267-0056, USA
| | - Sergey Grinshpun
- Department of Environmental Health, University of Cincinnati, Box 670056, Cincinnati, OH 45267-0056, USA
| | - Tiina Reponen
- Department of Environmental Health, University of Cincinnati, Box 670056, Cincinnati, OH 45267-0056, USA
- Corresponding author: Tiina Reponen, University of Cincinnati, Department of Environmental Health, P.O. Box 670056 (3223 Eden Avenue), Cincinnati, OH, 45267-0056, USA, Tel. 513-558-0571; Fax 513-5582263;
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26
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Hamedi J, Mohammadipanah F, von Jan M, Pötter G, Schumann P, Spröer C, Klenk HP, Kroppenstedt RM. Nocardiopsis sinuspersici sp. nov., isolated from sandy rhizospheric soil. Int J Syst Evol Microbiol 2010; 60:2346-2352. [DOI: 10.1099/ijs.0.018366-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A polyphasic taxonomic study of a halotolerant bacterium, isolated from sandy rhizospheric soil in Sarbandar, Persian Gulf, Iran, revealed that strain HM6T represents a novel species within the genus Nocardiopsis. Results of the 16S rRNA gene sequence comparison revealed that strain HM6T clustered with strains of the genus Nocardiopsis, showing the highest degree of 16S rRNA gene sequence similarity to Nocardiopsis quinghaiensis (99.2 %), Nocardiopsis aegyptia (98.5 %) and Nocardiopsis halotolerans (98.3 %). However, DNA–DNA hybridization studies with these type strains revealed less than 39.6 % similarity. Rather than genotypic differences, there are some phenotypic discrepancies between strain HM6T and closely related species of the genus Nocardiopsis. Main morphological and chemotaxonomical features of strain HM6T include: (i) growth characteristics, i.e. the formation of a scant light-yellow to white aerial mycelium and the typical zig-zag form of the hyphae, which fragment during ageing into smooth rod-shaped spores; (ii) the presence of meso-diaminopimelic acid and glucose plus ribose in whole-cell hydrolysates; (iii) the presence of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and phosphatidylinositol, together with three unknown Nocardiopsis-specific phospholipids (close to diphosphatidylglycerol in position) in polar lipid extracts; (iv) the presence of the major menaquinones MK-10(H0), MK-10(H2) and MK-9(H0) in the non-polar fraction; (v) the presence of iso/anteiso-branched plus 10-methyl-branched fatty acids, showing the diagnostic combination for species of the genus Nocardiopsis of iso-16 : 0 (31.1 %), anteiso-17 : 0 (19.2 %), 10-methyl-17 : 0 (5.8 %) and tuberculostearic acid (8.8 %); and (vi) the absence of mycolic acids. Analysis of the 16S rRNA gene sequence revealed that strain HM6T represents a distinct taxon within the genus Nocardiopsis. Based upon genotypic and phenotypic differences from other members of the genus, a novel species, Nocardiopsis sinuspersici sp. nov., is proposed. The type strain is HM6T (=UTMC 00102T =DSM 45277T =CCUG 57624T).
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Affiliation(s)
- Javad Hamedi
- Microbial Biotechnology Laboratory, Department of Microbiology, School of Biology, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Fatemeh Mohammadipanah
- Microbial Biotechnology Laboratory, Department of Microbiology, School of Biology, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Mathias von Jan
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
| | - Gabriele Pötter
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
| | - Peter Schumann
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
| | - Cathrin Spröer
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
| | - Hans-Peter Klenk
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
| | - Reiner M. Kroppenstedt
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstraße 7b, 38124 Braunschweig, Germany
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27
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Kämpfer P, Schäfer J, Lodders N, Martin K. Murinocardiopsis flavida gen. nov., sp. nov., an actinomycete isolated from indoor walls. Int J Syst Evol Microbiol 2010; 60:1729-1734. [DOI: 10.1099/ijs.0.015990-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two Gram-stain-positive, mycelium-forming actinobacteria (strains 14-Be-013T and 02-Gi-014) were isolated from walls colonized with moulds and studied taxonomically. The isolates formed yellowish-pigmented substrate mycelium showing no fragmentation. Comparative analysis of 16S rRNA gene sequences showed that these bacteria are most closely related to genera within the family Nocardiopsaceae, but form a separate lineage within this family. Highest sequence similarities were to the type strains of Marinactinospora thermotolerans (96.0 % to 14-Be-013T), Nocardiopsis dassonvillei subsp. albirubida and Nocardiopsis lucentensis (both 95.3 % to 14-Be-013T). Whole-cell hydrolysates contained meso-diaminopimelic acid as the diagnostic diamino acid of the cell wall and no diagnostic sugars. Mycolic acids were absent. The major menaquinones were MK-10(H4), MK-11(H4) and MK-12(H2). The polar lipid profile consisted of phosphatidylcholine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and unknown lipids. Major fatty acids iso-C16 : 0, anteiso-C17 : 0 and C18 : 1
ω9c supported the affiliation of these isolates to the family Nocardiopsaceae. Phenotypic analysis (including chemotaxonomy) further differentiated strains 14-Be-013T and 02-Gi-014 from the most closely related members of the genera Marinactinospora and Nocardiopsis. Since the two strains form a distinct lineage in the 16S rRNA gene sequence-based phylogenetic tree, the novel genus Murinocardiopsis gen. nov. with the type species Murinocardiopsis flavida sp. nov. is proposed. The type strain of Murinocardiopsis flavida is 14-Be-013T (=DSM 45312T =CCM 7612T).
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Affiliation(s)
- P. Kämpfer
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
| | - J. Schäfer
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
| | - N. Lodders
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
| | - K. Martin
- Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie eV, Hans-Knöll-Institut für Naturstoff-Forschung eV, D-07745 Jena, Germany
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Schäfer J, Jäckel U, Kämpfer P. Analysis of Actinobacteria from mould-colonized water damaged building material. Syst Appl Microbiol 2010; 33:260-8. [PMID: 20580507 DOI: 10.1016/j.syapm.2010.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Accepted: 04/26/2010] [Indexed: 10/19/2022]
Abstract
Mould-colonized water damaged building materials are frequently co-colonized by actinomycetes. Here, we report the results of the analyses of Actinobacteria on different wall materials from water damaged buildings obtained by both cultivation-dependent and cultivation-independent methods. Actinobacteria were detected in all but one of the investigated materials by both methods. The detected concentrations of Actinobacteria ranged between 1.8 x 10(4) and 7.6 x 10(7) CFUg(-1) of investigated material. A total of 265 isolates from 17 materials could be assigned to 31 different genera of the class Actinobacteria on the basis of 16S rRNA gene sequence analyses. On the basis of the cultivation-independent approach, 16S rRNA gene inserts of 800 clones (50%) were assigned to 47 different genera. Representatives of the genera Streptomyces, Amycolatopsis, Nocardiopsis, Saccharopolyspora, Promicromonospora, and Pseudonocardia were found most frequently. The results derived from both methods indicated a high abundance and variety of Actinobacteria in water damaged buildings. Four bioaerosol samples were investigated by the cultivation-based approach in order to compare the communities of Actinobacteria in building material and associated air samples. A comparison of the detected genera of bioaerosol samples with those directly obtained from material samples resulted in a congruent finding of 9 of the overall 35 detected genera (25%), whereas four genera were only detected in bioaerosol samples.
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Affiliation(s)
- Jenny Schäfer
- Justus-Liebig Universität Giessen, Institut für Angewandte Mikrobiologie, 35392 Giessen, Germany
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29
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Isolation and characterisation of bacteria from the haloalkaline Lake Elmenteita, Kenya. Extremophiles 2010; 14:339-48. [PMID: 20401502 DOI: 10.1007/s00792-010-0311-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Accepted: 03/22/2010] [Indexed: 10/19/2022]
Abstract
Culture-independent studies show that soda lake environments harbour diverse groups of bacteria and archaea. In this study different enrichment and isolation media were used in an attempt to isolate novel groups of bacteria from Lake Elmenteita. Different media were prepared using filter-sterilised water from the lake. The isolates recovered were purified on tryptic soy agar supplemented with 1% sodium carbonate and 4% sodium chloride. Phylogenetic analysis of 181 partial 16S rRNA gene sequences with excellent quality showed that the majority of the isolates were affiliated to the class Gammaproteobacteria and to the genus Bacillus. Isolates from the genus Halomonas and Bacillus constituted 37 and 31% of the total sequenced isolates, respectively. Other groups recovered were related to Marinospirillum, Idiomarina, Vibrio, Enterococcus, Alkalimonas, Alkalibacterium, Amphibacillus, Marinilactibacillus and the actinobacteria Nocardiopsis and Streptomyces. Fifty-one different genera were represented with 31 and 15 cultures scoring with their nearest neighbour similarities below 98 and 97%, respectively. Some novel taxa were identified which had not been isolated previously from the soda environment. The results show that the use of different media with varying compositions can help retrieve novel bacterial diversity from the soda lake environment.
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Nocardiopsis terrae sp. nov., a halophilic actinomycete isolated from saline soil. Antonie van Leeuwenhoek 2010; 98:31-8. [DOI: 10.1007/s10482-010-9425-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Accepted: 03/03/2010] [Indexed: 10/19/2022]
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31
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Thrasher JD, Crawley S. The biocontaminants and complexity of damp indoor spaces: more than what meets the eyes. Toxicol Ind Health 2009; 25:583-615. [DOI: 10.1177/0748233709348386] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Nine types of biocontaminants in damp indoor environments from microbial growth are discussed: (1) indicator molds; (2) Gram negative and positive bacteria; (3) microbial particulates; (4) mycotoxins; (5) volatile organic compounds, both microbial (MVOCs) and non-microbial (VOCs); (6) proteins; (7) galactomannans; (8) 1-3-β-D-glucans (glucans) and (9) lipopolysaccharides (LPS — endotoxins). When mold species exceed those outdoors contamination is deduced. Gram negative bacterial endotoxins, LPS in indoor environments, synergize with mycotoxins. The gram positive Bacillus species, Actinomycetes (Streptomyces, Nocardia and Mycobacterium), produce exotoxins. The Actinomycetes are associated with hypersensitivity pneumonitis, lung and invasive infections. Mycobacterial mycobacterium infections not from M. tuberculosis are increasing in immunocompetent individuals. In animal models, LPS enhance the toxicity of roridin A, satratoxins G and aflatoxin B1 to damage the olfactory epithelium, tract and bulbs (roridin A, satratoxin G) and liver (aflatoxin B1). Aflatoxin B1 and probably trichothecenes are transported along the olfactory tract to the temporal lobe. Co-cultured Streptomyces californicus and Stachybotrys chartarum produce a cytotoxin similar to doxorubicin and actinomycin D (chemotherapeutic agents). Trichothecenes, aflatoxins, gliotoxin and other mycotoxins are found in dust, bulk samples, air and ventilation systems of infested buildings. Macrocyclic trichothecenes are present in airborne particles <2 μm. Trichothecenes and stachylysin are present in the sera of individuals exposed to S. chartarum in contaminated indoor environments. Haemolysins are produced by S. chartarum, Memnoniella echinata and several species of Aspergillus and Penicillium. Galactomannans, glucans and LPS are upper and lower respiratory tract irritants. Gliotoxin, an immunosuppressive mycotoxin, was identified in the lung secretions and sera of cancer patients with aspergillosis produced by A. fumigatus, A. terreus, A. niger and A. flavus.
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Chen YG, Wang YX, Zhang YQ, Tang SK, Liu ZX, Xiao HD, Xu LH, Cui XL, Li WJ. Nocardiopsis litoralis sp. nov., a halophilic marine actinomycete isolated from a sea anemone. Int J Syst Evol Microbiol 2009; 59:2708-13. [PMID: 19625431 DOI: 10.1099/ijs.0.009704-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-positive, moderately halophilic, alkalitolerant, filamentous, aerobic actinomycete, designated strain JSM 073097(T), was isolated from a sea anemone collected from a tidal flat in the South China Sea. Phylogenetic analyses based on 16S rRNA gene sequences indicated that the new isolate was a member of the genus Nocardiopsis and was most closely related to Nocardiopsis kunsanensis HA-9(T), Nocardiopsis xinjiangensis YIM 90004(T) and Nocardiopsis salina YIM 90010(T) (99.6, 98.5 and 98.1 % similarity, respectively). Phenotypic characteristics and chemotaxonomic data also indicated that strain JSM 073097(T) was a member of the genus Nocardiopsis. The strain grew well on most of the media tested, producing white to yellow-white substrate mycelium and white aerial mycelium and straight to flexuous hyphae. The substrate mycelium was well developed and fragmented with age; the aerial mycelium produced long, straight to flexuous spore chains with non-motile, smooth-surfaced, rod-shaped spores. The strain grew in the presence of 1-15 % (w/v) total salts and at pH 6.0-10.5 and 20-35 degrees C; optimum growth occurred in the presence of 5-7 % (w/v) total salts and at pH 8.5 and 25 degrees C. Whole-cell hydrolysates of strain JSM 073097(T) contained meso-diaminopimelic acid and no diagnostic sugars. The predominant menaquinones were MK-10(H(4)), MK-10(H(6)) and MK-10(H(8)). The major cellular fatty acids were iso-C(15 : 0), iso-C(16 : 0), anteiso-C(16 : 0) and 10-methyl C(18 : 0). Polar lipids comprised diphosphatidylglycerol, phosphatidylcholine and phosphatidylglycerol. The DNA G+C content of strain JSM 073097(T) was 70.4 mol%. The combination of phylogenetic analysis, DNA-DNA relatedness data, phenotypic characteristics and chemotaxonomic data supported the suggestion that strain JSM 073097(T) represents a novel species of the genus Nocardiopsis, for which the name Nocardiopsis litoralis sp. nov. is proposed. The type strain is JSM 073097(T) (=DSM 45168(T)=KCTC 19473(T)).
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Affiliation(s)
- Yi-Guang Chen
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
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33
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Nocardiopsis potens sp. nov., isolated from household waste. Int J Syst Evol Microbiol 2009; 59:2729-33. [DOI: 10.1099/ijs.0.011288-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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34
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Suihko ML, Priha O, Alakomi HL, Thompson P, Mälarstig B, Stott R, Richardson M. Detection and molecular characterization of filamentous actinobacteria and thermoactinomycetes present in water-damaged building materials. INDOOR AIR 2009; 19:268-277. [PMID: 19302504 DOI: 10.1111/j.1600-0668.2009.00591.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
UNLABELLED In this study the dominant filamentous actinobacteria occurring in water-damaged building materials were detected by culture and characterized by automated ribotyping and 16S rRNA gene sequencing. Fifty-two samples were taken from 20 water-damaged houses in four different countries. A total of 122 bacterial isolates were analyzed. Actinobacteria or thermoactinomycetes were present in 48% of the samples. The dominant genus was Streptomyces (58% of isolates), followed by Thermoactinomyces (23%), Laceyella (14%), Nocardiopsis (3%), Pseudonocardia (1%) and Saccharomonospora (1%). The most frequently detected species was the thermophilic Thermoactinomyces vulgaris (14 samples/4 countries). The most common streptomycetes were closely related to the heterogeneous species Streptomyces microflavus (7/2) or Streptomyces griseus (6/2). Automated ribotyping was a rapid tool for reliable characterization of these isolates. The spores of thermoactinomycetes and toxic substances of Nocardiopsis species and S. griseus may constitute a risk for human health. PRACTICAL IMPLICATIONS Harmful microbes in indoor environments are a cause of public concern. To develop rapid and simple-to-use molecular biological methods to detect the presence of harmful actinobacterial species in water-damaged buildings more information about their occurrence in those materials is needed, which this study provides.
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Affiliation(s)
- M-L Suihko
- VTT Technical Research Centre of Finland, Espoo, Finland
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35
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Hozzein WN, Goodfellow M. Nocardiopsis arabia sp. nov., a halotolerant actinomycete isolated from a sand-dune soil. Int J Syst Evol Microbiol 2009; 58:2520-4. [PMID: 18984686 DOI: 10.1099/ijs.0.65014-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The taxonomic status of an unknown actinomycete isolated from a sand-dune soil was established using a polyphasic approach. Isolate S186(T) had chemotaxonomic and morphological properties consistent with its classification in the genus Nocardiopsis, grew on agar plates at NaCl concentrations of up to 15 % (w/v) and formed a distinct phyletic line in the Nocardiopsis 16S rRNA gene sequence tree. Its closest phylogenetic neighbours were Nocardiopsis chromatogenes, Nocardiopsis composta, Nocardiopsis gilva and Nocardiopsis trehalosi, with sequence similarity to the various type strains of 96.9 %, but it was readily distinguished from the type strains of these and related species using a range of phenotypic properties. It is apparent from the genotypic and phenotypic data that strain S186(T) belongs to a novel species of the genus Nocardiopsis, for which the name Nocardiopsis arabia sp. nov. is proposed. The type strain is S186(T) (=CGMCC 4.2057(T) =DSM 45083(T)).
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Affiliation(s)
- Wael N Hozzein
- Botany Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
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36
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Yang R, Zhang LP, Guo LG, Shi N, Lu Z, Zhang X. Nocardiopsis valliformis sp. nov., an alkaliphilic actinomycete isolated from alkali lake soil in China. Int J Syst Evol Microbiol 2008; 58:1542-6. [DOI: 10.1099/ijs.0.65090-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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37
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Chen YG, Cui XL, Kroppenstedt RM, Stackebrandt E, Wen ML, Xu LH, Jiang CL. Nocardiopsis quinghaiensis sp. nov., isolated from saline soil in China. Int J Syst Evol Microbiol 2008; 58:699-705. [PMID: 18319481 DOI: 10.1099/ijs.0.65441-0] [Citation(s) in RCA: 33] [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 previously unknown Gram-positive, obligately aerobic actinomycete, YIM 28A4(T), was isolated from a sample of saline soil collected from the Qaidam Basin in Qinghai Province, north-west China, and was investigated using a polyphasic taxonomic approach. The strain grew well on most of the media tested, producing white to pale-yellow substrate mycelium, white aerial mycelium and straight to flexuous hyphae. The substrate mycelium was well developed and fragmented with age; the aerial mycelium produced long, straight spore chains. The spore chains were composed of non-motile, smooth-surfaced, rod-shaped spores. No diffusible pigments were produced on any of the media tested. The strain grew in the presence of 0-10 % (w/v) NaCl and at pH 6.0-8.0, with optimum growth occurring at 3 % (w/v) NaCl and pH 7.0. It grew at 10-37 degrees C, the optimum growth temperature being 28 degrees C. Whole-cell hydrolysates of strain YIM 28A4(T) contained meso-diaminopimelic acid and no diagnostic sugars. The predominant phospholipids were phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. The predominant menaquinones were MK-10, MK-10(H(2)), MK-11 and MK-11(H(2)). The major cellular fatty acids were iso-C(16 : 0), anteiso-C(15 : 0) and anteiso-C(17 : 0). The DNA G+C content was 67.1 mol%. The morphological and chemotaxonomic characteristics of the isolate matched those described for Nocardiopsis species. A phylogenetic analysis based on 16S rRNA gene sequence comparisons confirmed that strain YIM 28A4(T) was a member of the genus Nocardiopsis and most closely related to the type strains Nocardiopsis aegyptia DSM 44442(T) and Nocardiopsis halotolerans DSM 44410(T), showing 98.1 and 97.8 % 16S rRNA gene sequence similarity, respectively. Strain YIM 28A4(T) can be differentiated from these type strains by using phenotypic, phylogenetic and DNA-DNA hybridization data. On the basis of the polyphasic evidence, strain YIM 28A4(T) represents a novel species of the genus Nocardiopsis, for which the name Nocardiopsis quinghaiensis sp. nov. is proposed. The type strain is YIM 28A4(T) (=DSM 44739(T) =CGMCC 4.3494(T)).
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Affiliation(s)
- Yi-Guang Chen
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
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38
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Zhang H, Lee YK, Zhang W, Lee HK. Culturable actinobacteria from the marine sponge Hymeniacidon perleve: isolation and phylogenetic diversity by 16S rRNA gene-RFLP analysis. Antonie van Leeuwenhoek 2006; 90:159-69. [PMID: 16871424 DOI: 10.1007/s10482-006-9070-1] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2006] [Accepted: 03/09/2006] [Indexed: 11/26/2022]
Abstract
A total of 106 actinobacteria associated with the marine sponge Hymeniacidon perleve collected from the Yellow Sea, China were isolated using eight different media. The number of species and genera of actinobacteria recovered from the different media varied significantly, underlining the importance of optimizing the isolation conditions. The phylogenetic diversity of the actinobacteria isolates was assessed using 16S rRNA gene amplification-restriction fragment length polymorphism (RFLP) analysis of the 106 strains with different morphologies. The RFLP fingerprinting of selected strains by HhaI-digestion of the 16S rRNA genes resulted in 11 different patterns. The HhaI-RFLP analysis gave good resolution for the identification of the actinobacteria isolates at the genus level. A phylogenetic analysis using 16S rRNA gene sequences revealed that the isolates belonged to seven genera of culturable actinobacteria including Actinoalloteichus, Micromonospora, Nocardia, Nocardiopsis, Pseudonocardia, Rhodococcus, and Streptomyces. The dominant genus was Streptomyces, which represented 74% of the isolates. Three of the strains identified are candidates for new species.
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MESH Headings
- Actinobacteria/classification
- Actinobacteria/genetics
- Actinobacteria/isolation & purification
- Animals
- China
- DNA Fingerprinting
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- Deoxyribonucleases, Type II Site-Specific
- Genes, rRNA
- Molecular Sequence Data
- Phylogeny
- Polymorphism, Restriction Fragment Length
- Porifera/microbiology
- RNA, Ribosomal, 16S/genetics
- Sequence Analysis, DNA
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Affiliation(s)
- Haitao Zhang
- Marine Bioproducts Engineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Murtoniemi T, Penttinen P, Nevalainen A, Hirvonen MR. Effects of microbial cocultivation on inflammatory and cytotoxic potential of spores. Inhal Toxicol 2005; 17:681-93. [PMID: 16087574 DOI: 10.1080/08958370500189669] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Microbial growth on moisture-damaged building materials is commonly associated with adverse health effects in the occupants. In moisture damage situations, the environmental conditions as well as the dominant microbial species will vary, leading to a diversity of microbes and continual changes in the different microbial populations. Currently, very little is known about the effects of microbial cocultures on the potential harmfulness of the microbial population. In this study we have investigated the effects of cocultivation of certain indoor air microbes on the inflammatory and cytotoxic potential of their spores. We grew various microbial combinations made from strains of Streptomyces californicus, Stachybotrys chartarum, Aspergillus versicolor, and Penicillium spinulosum on wetted plasterboard. After 5 or 10 wk of growth, the spores were collected from the plasterboards, mouse RAW264.7 macrophages were exposed to the spores, and after 24 h the induced inflammatory and cytotoxic responses were analyzed. Among all the tested microbes and their combinations, the spores of Str. californicus proved to be the most potent inducer of cytotoxicity and inflammatory responses. These results indicate also that microbial coculture may support the growth of certain microbes with high immunotoxic potency such as Str.californicus. Furthermore, coculture containing S. chartarum and A. versicolor caused a synergistic increase in cytotoxicity compared to the sum response induced by the pure cultures, but no effect on inflammatory responses was detected. Generally, spore-induced cytotoxicity and production of inflammatory markers increased during the growth period from 5 to 10 wk, suggesting that the immunotoxic potency of spores increases with time.
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Affiliation(s)
- Timo Murtoniemi
- Department of Environmental Health, National Public Health Institute, Kuopio, and Turku Regional Institute of Occupational Health, Turku, Finland
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40
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Suihko ML, Kroppenstedt RM, Stackebrandt E. Occurrence and characterization of actinobacteria and thermoactinomycetes isolated from pulp and board samples containing recycled fibres. J Ind Microbiol Biotechnol 2005; 33:183-91. [PMID: 16292555 DOI: 10.1007/s10295-005-0055-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2005] [Accepted: 10/18/2005] [Indexed: 10/25/2022]
Abstract
The aim of this study was to characterize the actinobacterial population present in pulps and boards containing recycled fibres. A total of 107 isolates was identified on the basis of their pigmentation, morphological properties, fatty acid profiles and growth temperature. Of the wet pulp and water sample isolates (n=87), 74.7% belonged to the genus Streptomyces, 17.2% to Nocardiopsis and 8.0% to thermoactinomycetes, whereas all the board sample isolates (n=20) were thermoactinomycetes. The identification of 53 isolates was continued by molecular methods. Partial 16S rDNA sequencing and automated ribotyping divided the Streptomyces isolates (n=31) into 14 different taxa. The most common streptomycetes were the mesophilic S. albidoflavus and moderately thermophilic S. thermocarboxydus. The Nocardiopsis isolates (n=11) belonged to six different taxa, whereas the thermoactinomycetes were mainly members of the species Laceyella sacchari (formerly Thermoactinomyces sacchari). The results indicated the probable presence of one or more new species within each of these genera. Obviously, the drying stage used in the board making processes had eliminated all members of the species Streptomyces and Nocardiopsis present in the wet recycled fibre pulp samples. Only the thermotolerant endospores of L. sacchari were still present in the final products. The potential of automated ribotyping for identifying actinobacteria was indicated, as soon as comprehensive identification libraries became available.
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Affiliation(s)
- M-L Suihko
- VTT Biotechnology, PO Box 1500, 02044 VTT, Finland.
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41
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Wu Z, Xie L, Xia G, Zhang J, Nie Y, Hu J, Wang S, Zhang R. A new tetrodotoxin-producing actinomycete, Nocardiopsis dassonvillei, isolated from the ovaries of puffer fish Fugu rubripes. Toxicon 2005; 45:851-9. [PMID: 15904680 DOI: 10.1016/j.toxicon.2005.02.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2005] [Revised: 02/06/2005] [Accepted: 02/10/2005] [Indexed: 11/19/2022]
Abstract
Three puffer fishes, Fugu rubripes, collected from the Bohai Sea of China were examined for tetrodotoxin-producing microorganisms. An actinomycete isolated from the ovaries of the puffer fishes was found to produce tetrodotoxin. After being cultured at 28 degrees C for 7 days, cells were harvested by centrifuge and disrupted by ultrasonication. The toxin was purified from the cell lyzate by ultrafiltration, active charcoal column, Bio-gel-p2 and ion exchange column chromatography. Mouse neuroblastoma cell culture, thin-layer chromatography, fluorimetric spectrophotometry, UV-spectrophotometry and electrospray ionization mass spectrometry, together with mouse bioassay demonstrated that the isolated strain produced tetrodotoxin and related toxin during cultivation. Based on morphological, physiological, biochemical characteristics and 16S rDNA alignment, this strain was identified as Nocardiopsis dassonvillei. Our findings suggested that N. dassonvillei in the ovaries was closely related to the toxification of the puffer fish.
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Affiliation(s)
- Zhenlong Wu
- Department of Biological Science and Biotechnology, Tsinghua University, Beijing, P.R. China
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42
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Li WJ, Park DJ, Tang SK, Wang D, Lee JC, Xu LH, Kim CJ, Jiang CL. Nocardiopsis salina sp. nov., a novel halophilic actinomycete isolated from saline soil in China. Int J Syst Evol Microbiol 2005; 54:1805-1809. [PMID: 15388747 DOI: 10.1099/ijs.0.63127-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A moderately halophilic actinomycete strain, designated YIM 90010T, was isolated from a soil sample collected from a hypersaline habitat in Xinjiang Province, China, and then investigated using a polyphasic taxonomic approach. The strain produced abundant aerial mycelia and fragmented substrate mycelia on most media tested; the optimum NaCl concentration for growth was 10 % (w/v) and the optimum growth temperature and pH were 28 degrees C and 7.2, respectively. Chemotaxonomically and phylogenetically, the strain was related to members of the genus Nocardiopsis. The isolate contained chemotaxonomic markers that were diagnostic for the genus Nocardiopsis, i.e. meso-diaminopimelic acid, no diagnostic sugars, and MK-10(H6), MK-10(H8) and MK-12 as the predominant menaquinones. The major fatty acids were iso- and anteiso-branched acids combined with tuberculostearic acid (Me C(18 : 0)), straight-chain saturated fatty acids and unsaturated fatty acids. The G + C content was 73.1 mol%. Phylogenetic analysis confirmed that strain YIM 90010T was a member of the genus Nocardiopsis and most closely related to Nocardiopsis kunsanensis (97.6 % similarity) and Nocardiopsis xinjiangensis (98.1 % similarity). It can be differentiated from these species by using phenotypic characteristics, phylogenetic analysis and DNA-DNA hybridization results. On the basis of the polyphasic evidence, a novel species, Nocardiopsis salina sp. nov., is proposed. The type strain of the species is YIM 90010T (= KCTC 19003T = CCTCC AA 204009T).
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MESH Headings
- Actinomycetales/classification
- Actinomycetales/cytology
- Actinomycetales/isolation & purification
- Actinomycetales/physiology
- Bacterial Typing Techniques
- Base Composition
- Carbohydrates/analysis
- China
- DNA, Bacterial/chemistry
- DNA, Bacterial/isolation & purification
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/isolation & purification
- Diaminopimelic Acid/analysis
- Fatty Acids/analysis
- Genes, rRNA
- Growth Inhibitors/pharmacology
- Hydrogen-Ion Concentration
- Microscopy, Electron, Scanning
- Molecular Sequence Data
- Nucleic Acid Hybridization
- Phylogeny
- RNA, Bacterial/genetics
- RNA, Ribosomal, 16S/genetics
- Saline Solution, Hypertonic/pharmacology
- Sequence Analysis, DNA
- Soil Microbiology
- Stearic Acids/analysis
- Temperature
- Vitamin K 2/analysis
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Affiliation(s)
- Wen-Jun Li
- Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
- The Key Laboratory for Microbial Resources of the Ministry of Education, People's Republic of China, Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Dong-Jin Park
- Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
| | - Shu-Kun Tang
- The Key Laboratory for Microbial Resources of the Ministry of Education, People's Republic of China, Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Dong Wang
- The Key Laboratory for Microbial Resources of the Ministry of Education, People's Republic of China, Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Jae-Chan Lee
- Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
| | - Li-Hua Xu
- The Key Laboratory for Microbial Resources of the Ministry of Education, People's Republic of China, Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Chang-Jin Kim
- Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
| | - Cheng-Lin Jiang
- The Key Laboratory for Microbial Resources of the Ministry of Education, People's Republic of China, Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
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43
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Sabry SA, Ghanem NB, Abu-Ella GA, Schumann P, Stackebrandt E, Kroppenstedt RM. Nocardiopsis aegyptia sp. nov., isolated from marine sediment. Int J Syst Evol Microbiol 2004; 54:453-456. [PMID: 15023959 DOI: 10.1099/ijs.0.02814-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An actinomycete, strain SNG49(T), was isolated from marine sediment of Abu Qir Bay, on the western seashore of Alexandria, Egypt. The bacterium was aerobic and Gram-positive. It produced beige to light-yellow aerial mycelium, brown substrate mycelium and straight to flexuous hyphae, but no specific spore chains. 16S rDNA sequence analysis and chemotaxonomic markers were consistent with classification of strain SNG49(T) in the genus Nocardiopsis, i.e. meso-diaminopimelic acid; no diagnostic sugars; phosphatidylcholine, phosphatidylmethylethanolamine, phosphatidylinositol, phosphatidylglycerol and diphosphatidylglycerol as polar lipids; menaquinones of the MK-10 series from MK-10(H(0)) to MK-10(H(8)); and iso/anteiso-branched and 10-methyl-branched fatty acids, the principal fatty acids being anteiso-17 : 0 and tuberculostearic acid. Nocardiopsis lucentensis and Nocardiopsis alba are the phylogenetic neighbours of strain SNG49(T), respectively showing 98.8 and 98.7 % 16S rRNA gene sequence similarity; however, moderate DNA-DNA reassociation values between these two species and strain SNG49(T) (44 and 60 %, respectively) showed that strain SNG49(T) could be clearly separated from them. These data, together with distinct physiological traits, led to the conclusion that this isolate represents a novel species within the genus Nocardiopsis, for which the name Nocardiopsis aegyptia is proposed. The type strain is SNG49(T) (=DSM 44442(T)=NRRL B-24244(T)).
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Affiliation(s)
- Soraya A Sabry
- Alexandria University, Faculty of Science, Division: Microbiology, PO Box, Alexandria, Egypt
| | - Nevine B Ghanem
- Alexandria University, Faculty of Science, Division: Microbiology, PO Box, Alexandria, Egypt
| | - Gehan A Abu-Ella
- Alexandria University, Faculty of Science, Division: Microbiology, PO Box, Alexandria, Egypt
| | - Peter Schumann
- DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, 38124 Braunschweig, Germany
| | - Erko Stackebrandt
- DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, 38124 Braunschweig, Germany
| | - Reiner M Kroppenstedt
- DSMZ - Deutsche Sammlung von Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, 38124 Braunschweig, Germany
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44
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Hozzein WN, Li WJ, Ali MIA, Hammouda O, Mousa AS, Xu LH, Jiang CL. Nocardiopsis alkaliphila sp. nov., a novel alkaliphilic actinomycete isolated from desert soil in Egypt. Int J Syst Evol Microbiol 2004; 54:247-252. [PMID: 14742488 DOI: 10.1099/ijs.0.02832-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An alkaliphilic actinomycete strain, designated YIM 80379T, was isolated from a soil sample collected from the eastern desert of Egypt and subjected to polyphasic taxonomy. The strain produced substrate and aerial mycelia on different media, with an optimum pH for growth of 9.5-10 and scarce or no growth at pH 7. Strain YIM 80379T contained meso-diaminopimelic acid, no diagnostic sugars, type PIII phospholipids and MK-10(H6) and MK-10(H8) as the predominant menaquinones. All of these characters assign isolate YIM 80379T consistently to the genus Nocardiopsis. This was confirmed by 16S rDNA analysis. It can be differentiated from all Nocardiopsis species with validly published names by phenotypic characteristics, phylogenetic analysis and DNA-DNA hybridization results. On the basis of polyphasic evidence, a novel species, Nocardiopsis alkaliphila sp. nov., is proposed. The type strain of the species is YIM 80379T (=CCTCC AA001031T=DSM 44657T).
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Affiliation(s)
- Wael N Hozzein
- Botany Department, Faculty of Science, Cairo University, Beni-Suef, Egypt
| | - Wen-Jun Li
- Key Laboratory for Microbial Resources of the Ministry of Education, Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, P.R. China
| | | | - Ola Hammouda
- Botany Department, Faculty of Science, Cairo University, Beni-Suef, Egypt
| | - Ahmed S Mousa
- Botany Department, Faculty of Science, Cairo University, Beni-Suef, Egypt
| | - Li-Hua Xu
- Key Laboratory for Microbial Resources of the Ministry of Education, Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, P.R. China
| | - Cheng-Lin Jiang
- Key Laboratory for Microbial Resources of the Ministry of Education, Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, P.R. China
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45
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Li MG, Li WJ, Xu P, Cui XL, Xu LH, Jiang CL. Nocardiopsis xinjiangensis sp. nov., a halophilic actinomycete isolated from a saline soil sample in China. Int J Syst Evol Microbiol 2003; 53:317-321. [PMID: 12656190 DOI: 10.1099/ijs.0.02055-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An actinomycete strain (YIM 90004T) was isolated from a saline soil sample from the Xinjiang Province, People's Republic of China. The strain displayed abundant aerial and substrate mycelia, and short spore chains were borne on the aerial mycelium. The spore chains were composed of non-motile, smooth-surfaced, rod-shaped spores. The cell wall of strain YIM 90004T contained mainly meso-diaminopimelic acid, alanine and glutamic acid (cell wall type III). Glucose, ribose, galactose, xylose and arabinose were the whole-cell sugars of the strain. The predominant phospholipids were phosphatidylinositol and phosphatidylglycerol; MK-10(H2) and MK-10(H4) were the predominant menaquinones. The DNA G + C content of strain YIM 90004T was 74.3 mol%. Chemotaxonomic properties and 16S rDNA analysis placed strain YIM 90004T in the genus Nocardiopsis. On the basis of phenotypic and phylogenetic analyses and DNA-DNA hybridization results, strain YIM 90004T (= CCRC 16285T = CCTCC AA99004T = DSM 44589T) is considered to represent a novel species of the genus Nocardiopsis, for which the name Nocardiopsis xinjiangensis is proposed.
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Affiliation(s)
- Ming-Gang Li
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
| | - Wen-Jun Li
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
| | - Ping Xu
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
| | - Xiao-Long Cui
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
| | - Li-Hua Xu
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
| | - Cheng-Lin Jiang
- The Key Laboratory for Microbial Resources of the Ministry of Education, Institute of Microbiology, Yunnan University, Kunming 650091, Yunnan, China
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