1
|
Gao RF, Wang Y, Wang Y, Wang ZW, Zhang GM. Genome insights from the identification of a novel Pandoraea sputorum isolate and its characteristics. PLoS One 2022; 17:e0272435. [PMID: 35930552 PMCID: PMC9355198 DOI: 10.1371/journal.pone.0272435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 07/19/2022] [Indexed: 11/18/2022] Open
Abstract
In this study, we sequenced a bacteria isolate Pandoraea sp. 892iso isolated from a Phytophthora rubi strain which is an important plant pathogenic oomycete, identified through genome and combined the data with existing genomic data from other 28 the genus of Pandoraea species. Next, we conducted a comparative genomic analysis of the genome structure, evolutionary relationships, and pathogenic characteristics of Pandoraea species. Our results identified Pandoraea sp. 892iso as Pandoraea sputorum at both the genome and gene levels. At the genome level, we carried out phylogenetic analysis of single-copy, gene co-linearity, ANI (average nucleotide identity) and AAI (average amino acid identity) indices, rpoB similarity, MLSA phylogenetic analysis, and genome-to-genome distance calculator calculations to identify the relationship between Pandoraea sp. 892iso and P. sputorum. At the gene level, the quorum sensing genes ppnI and ppnR and the OXA-159 gene were assessed. It is speculated that Pandoraea sp. 892iso is the endosymbiont of the Oomycetes strain of Phytophthora rubi.
Collapse
Affiliation(s)
- Rui-Fang Gao
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
- * E-mail:
| | - Ying Wang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
| | - Ying Wang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
| | | | - Gui-Ming Zhang
- Animal & Plant Inspection and Quarantine Technology Center of Shenzhen Customs District P.R. China, Shenzhen, China
- Shenzhen Key Laboratory for Research & Development on Detection Technology of Alien Pests, Shenzhen Academy of Inspection and Quarantine, Shenzhen, China
| |
Collapse
|
2
|
Metagenome-assembled genome of a Chitinophaga sp. and its potential in plant biomass degradation, as well of affiliated Pandoraea and Labrys species. World J Microbiol Biotechnol 2021; 37:162. [PMID: 34448059 DOI: 10.1007/s11274-021-03128-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/12/2021] [Indexed: 12/23/2022]
Abstract
The prospection of new degrading enzymes of the plant cell wall has been the subject of many studies and is fundamental for industries, due to the great biotechnological importance of achieving a more efficient depolymerization conversion from plant polysaccharides to fermentable sugars, which are useful not only for biofuel production but also for various bioproducts. Thus, we explored the shotgun metagenome data of a bacterial community (CB10) isolated from sugarcane bagasse and recovered three metagenome-assembled genomes (MAGs). The genomic distance analyses, along with phylogenetic analysis, revealed the presence of a putative novel Chitinophaga species, a Pandoraea nosoerga, and Labrys sp. isolate. The isolation process for each one of these bacterial lineages from the community was carried out in order to relate them with the MAGs. The recovered draft genomes have reasonable completeness (72.67-100%) and contamination (0.26-2.66%) considering the respective marker lineage for Chitinophaga (Bacteroidetes), Pandoraea (Burkholderiales), and Labrys (Rhizobiales). The in-vitro assay detected cellulolytic activity (endoglucanases) only for the isolate Chitinophaga, and its genome analysis revealed 319 CAZymes, of which 115 are classified as plant cell wall degrading enzymes, which can act in fractions of hemicellulose and pectin. Our study highlights the potential of this Chitinophaga isolate provides several plant-polysaccharide-degrading enzymes.
Collapse
|
3
|
Performance and Application of 16S rRNA Gene Cycle Sequencing for Routine Identification of Bacteria in the Clinical Microbiology Laboratory. Clin Microbiol Rev 2020; 33:33/4/e00053-19. [PMID: 32907806 DOI: 10.1128/cmr.00053-19] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
This review provides a state-of-the-art description of the performance of Sanger cycle sequencing of the 16S rRNA gene for routine identification of bacteria in the clinical microbiology laboratory. A detailed description of the technology and current methodology is outlined with a major focus on proper data analyses and interpretation of sequences. The remainder of the article is focused on a comprehensive evaluation of the application of this method for identification of bacterial pathogens based on analyses of 16S multialignment sequences. In particular, the existing limitations of similarity within 16S for genus- and species-level differentiation of clinically relevant pathogens and the lack of sequence data currently available in public databases is highlighted. A multiyear experience is described of a large regional clinical microbiology service with direct 16S broad-range PCR followed by cycle sequencing for direct detection of pathogens in appropriate clinical samples. The ability of proteomics (matrix-assisted desorption ionization-time of flight) versus 16S sequencing for bacterial identification and genotyping is compared. Finally, the potential for whole-genome analysis by next-generation sequencing (NGS) to replace 16S sequencing for routine diagnostic use is presented for several applications, including the barriers that must be overcome to fully implement newer genomic methods in clinical microbiology. A future challenge for large clinical, reference, and research laboratories, as well as for industry, will be the translation of vast amounts of accrued NGS microbial data into convenient algorithm testing schemes for various applications (i.e., microbial identification, genotyping, and metagenomics and microbiome analyses) so that clinically relevant information can be reported to physicians in a format that is understood and actionable. These challenges will not be faced by clinical microbiologists alone but by every scientist involved in a domain where natural diversity of genes and gene sequences plays a critical role in disease, health, pathogenicity, epidemiology, and other aspects of life-forms. Overcoming these challenges will require global multidisciplinary efforts across fields that do not normally interact with the clinical arena to make vast amounts of sequencing data clinically interpretable and actionable at the bedside.
Collapse
|
4
|
Fujioka T, Boivin S. Dialysis as a new pre-treatment technique for online bacterial counting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 714:136768. [PMID: 31982761 DOI: 10.1016/j.scitotenv.2020.136768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/24/2019] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
Real-time bacteriological counting technology is capable of providing an online profile of bacterial removal during the wastewater treatment process, and can enhance the safety of recycled water for potable water reuse. However, autofluorescence emanating from dissolved organic compounds present in treated wastewater interferes with the analysis. In this study, a novel approach is adopted, viz., dialysis treatment for the removal of dissolved interfering substances from treated wastewater, and the efficiency of this treatment protocol is evaluated as a pre-treatment technique for real-time bacteriological counting. Dialysis using membranes having a molecular weight cut-off (MWCO) of 1000 kDa and 6-8 kDa were found to successfully reduce the intensity of autofluorescence emitted from the interfering substances; whereas the courser dialysis membrane having a MWCO of 1000 kDa was found to be more effective in removing the interfering substances. Here we demonstrate for the first time that continuous online dialysis treatment aids in the direct determination of the bacterial counts in ultrafiltration- and membrane bioreactor-treated wastewaters. The results of the study indicate that the dialysis pre-treatment technique is effective for continuously reducing the concentration of interfering substances in treated wastewater, and thus allows for direct online counting of bacteria.
Collapse
Affiliation(s)
- Takahiro Fujioka
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Sandrine Boivin
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| |
Collapse
|
5
|
Isolation and Identification of Endophytic Bacteria from Mycorrhizal Tissues of Terrestrial Orchids from Southern Chile. DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020055] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Endophytic bacteria are relevant symbionts that contribute to plant growth and development. However, the diversity of bacteria associated with the roots of terrestrial orchids colonizing Andean ecosystems is limited. This study identifies and examines the capabilities of endophytic bacteria associated with peloton-containing roots of six terrestrial orchid species from southern Chile. To achieve our goals, we placed superficially disinfected root fragments harboring pelotons on oatmeal agar (OMA) with no antibiotic addition and cultured them until the bacteria appeared. Subsequently, they were purified and identified using molecular tools and examined for plant growth metabolites production and antifungal activity. In total, 168 bacterial strains were isolated and assigned to 8 OTUs. The orders Pseudomonadales, Burkholderiales, and Xanthomonadales of phylum Proteobacteria were the most frequent. The orders Bacillales and Flavobacteriales of the phylla Firmicutes and Bacteroidetes were also obtained. Phosphate solubilization was detected in majority of isolates; however, it was significantly higher in Collimonas pratensis and Chryseobacterium sp. (PSI = 1.505 ± 0.09 and 1.405 ± 0.24, respectively). Siderophore production was recorded only for C. pratensis (0.657 ± 0.14 mm day−1), Dyella marensis (0.131 ± 0.02 mm day−1), and Luteibacter rhizovicinus (0.343 ± 0.12 mm day−1). Indole acetic acid production was highly influenced by the isolate identity; however, the significantly higher activity was recorded for Pseudomonas spp. (ranging from 5.507 ± 1.57 µg mL−1 to 7.437 ± 0.99 µg mL−1). Additionally, six bacterial isolates were able to inhibit the growth of some potential plant pathogenic fungi. Our findings demonstrate the potential for plant growth promoting capabilities and some antifungal activities of endophytic bacteria inhabiting the mycorrhizal tissue of terrestrial orchids, which may contribute especially at early developmental stages of orchid seedlings.
Collapse
|
6
|
Peeters C, De Canck E, Cnockaert M, De Brandt E, Snauwaert C, Verheyde B, Depoorter E, Spilker T, LiPuma JJ, Vandamme P. Comparative Genomics of Pandoraea, a Genus Enriched in Xenobiotic Biodegradation and Metabolism. Front Microbiol 2019; 10:2556. [PMID: 31781066 PMCID: PMC6851202 DOI: 10.3389/fmicb.2019.02556] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 10/23/2019] [Indexed: 01/31/2023] Open
Abstract
Comparative analysis of partial gyrB, recA, and gltB gene sequences of 84 Pandoraea reference strains and field isolates revealed several clusters that included no taxonomic reference strains. The gyrB, recA, and gltB phylogenetic trees were used to select 27 strains for whole-genome sequence analysis and for a comparative genomics study that also included 41 publicly available Pandoraea genome sequences. The phylogenomic analyses included a Genome BLAST Distance Phylogeny approach to calculate pairwise digital DNA–DNA hybridization values and their confidence intervals, average nucleotide identity analyses using the OrthoANIu algorithm, and a whole-genome phylogeny reconstruction based on 107 single-copy core genes using bcgTree. These analyses, along with subsequent chemotaxonomic and traditional phenotypic analyses, revealed the presence of 17 novel Pandoraea species among the strains analyzed, and allowed the identification of several unclassified Pandoraea strains reported in the literature. The genus Pandoraea has an open pan genome that includes many orthogroups in the ‘Xenobiotics biodegradation and metabolism’ KEGG pathway, which likely explains the enrichment of these species in polluted soils and participation in the biodegradation of complex organic substances. We propose to formally classify the 17 novel Pandoraea species as P. anapnoica sp. nov. (type strain LMG 31117T = CCUG 73385T), P. anhela sp. nov. (type strain LMG 31108T = CCUG 73386T), P. aquatica sp. nov. (type strain LMG 31011T = CCUG 73384T), P. bronchicola sp. nov. (type strain LMG 20603T = ATCC BAA-110T), P. capi sp. nov. (type strain LMG 20602T = ATCC BAA-109T), P. captiosa sp. nov. (type strain LMG 31118T = CCUG 73387T), P. cepalis sp. nov. (type strain LMG 31106T = CCUG 39680T), P. commovens sp. nov. (type strain LMG 31010T = CCUG 73378T), P. communis sp. nov. (type strain LMG 31110T = CCUG 73383T), P. eparura sp. nov. (type strain LMG 31012T = CCUG 73380T), P. horticolens sp. nov. (type strain LMG 31112T = CCUG 73379T), P. iniqua sp. nov. (type strain LMG 31009T = CCUG 73377T), P. morbifera sp. nov. (type strain LMG 31116T = CCUG 73389T), P. nosoerga sp. nov. (type strain LMG 31109T = CCUG 73390T), P. pneumonica sp. nov. (type strain LMG 31114T = CCUG 73388T), P. soli sp. nov. (type strain LMG 31014T = CCUG 73382T), and P. terrigena sp. nov. (type strain LMG 31013T = CCUG 73381T).
Collapse
Affiliation(s)
- Charlotte Peeters
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Evelien De Canck
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Margo Cnockaert
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Evie De Brandt
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Cindy Snauwaert
- BCCM/LMG Bacteria Collection, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Bart Verheyde
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Eliza Depoorter
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Theodore Spilker
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, United States
| | - John J LiPuma
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium.,BCCM/LMG Bacteria Collection, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| |
Collapse
|
7
|
Lin C, Luo N, Xu Q, Zhang J, Cai M, Zheng G, Yang P. Pneumonia due to Pandoraea Apista after evacuation of traumatic intracranial hematomas:a case report and literature review. BMC Infect Dis 2019; 19:869. [PMID: 31640582 PMCID: PMC6805617 DOI: 10.1186/s12879-019-4420-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/28/2019] [Indexed: 11/21/2022] Open
Abstract
Background Pandoraea species is a newly described genus, which is multidrug resistant and difficult to identify. Clinical isolates are mostly cultured from cystic fibrosis (CF) patients. CF is a rare disease in China, which makes Pandoraea a total stranger to Chinese physicians. Pandoraea genus is reported as an emerging pathogen in CF patients in most cases. However, there are few pieces of evidence that confirm Pandoraea can be more virulent in non-CF patients. The pathogenicity of Pandoraea genus is poorly understood, as well as its treatment. The incidence of Pandoraea induced infection in non-CF patients may be underestimated and it’s important to identify and understand these organisms. Case presentation We report a 44-years-old man who suffered from pneumonia and died eventually. Before his condition deteriorated, a Gram-negative bacilli was cultured from his sputum and identified as Pandoraea Apista by matrix-assisted laser desorption ionization–time-of-flight mass spectrometry (MALDI-TOF MS). Conclusion Pandoraea spp. is an emerging opportunistic pathogen. The incidences of Pandoraea related infection in non-CF patients may be underestimated due to the difficulty of identification. All strains of Pandoraea show multi-drug resistance and highly variable susceptibility. To better treatment, species-level identification and antibiotic susceptibility test are necessary.
Collapse
Affiliation(s)
- Chuanzhong Lin
- Department of Pharmacy, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou, China.,Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China
| | - Ning Luo
- Department of Pharmacy, Huadu District People's Hospital of Guangzhou, Southern Medical University, Guangzhou, China
| | - Qiang Xu
- Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China
| | - Jianjun Zhang
- Department of Pharmacy, Zhejiang provincial hospital of TCM, Hangzhou, China
| | - Mengting Cai
- Department of Pharmacy, Meizhou People's Hospital, Meizhou, China
| | - Guanhao Zheng
- Department of Pharmacy, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Ping Yang
- Department of Pharmacy, The First Affiliated Hospital of Medicine School, Zhejiang University, Hangzhou, China.
| |
Collapse
|
8
|
Wang X, Chen J, Ji R, Liu Y, Su Y, Guo R. Degradation of Bisphenol S by a Bacterial Consortium Enriched from River Sediments. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:630-635. [PMID: 31486911 DOI: 10.1007/s00128-019-02699-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/23/2019] [Indexed: 06/10/2023]
Abstract
The widespread use of bisphenol S (BPS) as a bisphenol A substitute increases its potential of release into the aquatic environments. However, the degradation of BPS in aquatic systems is largely unknown, which will dictate its fate and toxicity. In this study, a bacterial consortium was enriched from river sediments and the dynamic changes of community structure during bacterial acclimation were studied. BPS degrading bacterial strains isolated from the consortium were identified by 16S rRNA analysis. The efficiency of the consortium and strains for BPS degradation were further evaluated. After 28 days of acclimation, the microbial diversity decreased significantly and four bacterial genera Hyphomicrobium, Pandoraea, Rhodococcus, and Cupriavidus with relative abundances of 5.1%-52.8% became dominant in the consortium. Total of two pure strains including Terrimonas pekingensis and Pseudomonas sp. were isolated from the consortium, using BPS as the sole carbon source. The consortium was highly efficient to degrade BPS, and 99% of BPS with an initial concentration of 50 mg/L was removed within 10 days at pH 7 and 30°C. In comparison with the consortium, a single strain cultures had lower BPS degradation efficiency. These findings indicate that BPS will degrade rapidly under aerobic conditions in river sediments and have implication for BPS-contaminated site remediation using the enriched consortium.
Collapse
Affiliation(s)
- Xingwang Wang
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Jianqiu Chen
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Yanhua Liu
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Yu Su
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
| | - Ruixin Guo
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China.
| |
Collapse
|
9
|
Chua KO, See-Too WS, Ee R, Lim YL, Yin WF, Chan KG. In silico Analysis Reveals Distribution of Quorum Sensing Genes and Consistent Presence of LuxR Solos in the Pandoraea Species. Front Microbiol 2019; 10:1758. [PMID: 31447806 PMCID: PMC6691176 DOI: 10.3389/fmicb.2019.01758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/16/2019] [Indexed: 01/11/2023] Open
Abstract
The most common quorum sensing (QS) system in Gram-negative bacteria consists of signaling molecules called N-acyl-homoserine lactones (AHLs), which are synthesized by an enzyme AHL synthase (LuxI) and detected by a transcriptional regulator (LuxR) that are usually located in close proximity. However, many recent studies have also evidenced the presence of LuxR solos that are LuxR-related proteins in Proteobacteria that are devoid of a cognate LuxI AHL synthase. Pandoraea species are opportunistic pathogens frequently isolated from sputum specimens of cystic fibrosis (CF) patients. We have previously shown that P. pnomenusa strains possess QS activity. In this study, we examined the presence of QS activity in all type strains of Pandoraea species and acquired their complete genome sequences for holistic bioinformatics analyses of QS-related genes. Only four out of nine type strains (P. pnomenusa, P. sputorum, P. oxalativorans, and P. vervacti) showed QS activity, and C8-HSL was the only AHL detected. A total of 10 canonical luxIs with adjacent luxRs were predicted by bioinformatics from the complete genomes of aforementioned species and publicly available Pandoraea genomes. No orphan luxI was identified in any of the genomes. However, genes for two LuxR solos (LuxR2 and LuxR3 solos) were identified in all Pandoraea genomes (except two draft genomes with one LuxR solo gene), and P. thiooxydans was the only species that harbored no QS-related activity and genes. Except the canonical LuxR genes, LuxIs and LuxR solos of Pandoraea species were distantly related to the other well-characterized QS genes based on phylogenetic clustering. LuxR2 and LuxR3 solos might represent two novel evolutionary branches of LuxR system as they were found exclusively only in the genus. As a few luxR solos were located in close proximity with prophage sequence regions in the genomes, we thus postulated that these luxR solos could be transmitted into genus Pandoraea by transduction process mediated by bacteriophage. The bioinformatics approach developed in this study forms the basis for further characterization of closely related species. Overall, our findings improve the current understanding of QS in Pandoraea species, which is a potential pharmacological target in battling Pandoraea infections in CF patients.
Collapse
Affiliation(s)
- Kah-Ooi Chua
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Wah-Seng See-Too
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Yan-Lue Lim
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,International Genome Centre, Jiangsu University, Zhenjiang, China
| |
Collapse
|
10
|
Kenna DTD, Coward A, Perry C, Pike R, Schaefer U, Turton J, Green H, Jones AM, Bright-Thomas RJ, Burns P, Narayan O, Wilkinson S, Turton JF. Investigation of a Pandoraea apista cluster common to adult and paediatric cystic fibrosis patients attending two hospitals in the same city. J Med Microbiol 2019; 68:1081-1095. [DOI: 10.1099/jmm.0.001010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Dervla T. D. Kenna
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Amy Coward
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Claire Perry
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Rachel Pike
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - Ulf Schaefer
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | | | - Heather Green
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Andrew M. Jones
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Rowland J. Bright-Thomas
- Manchester Adult Cystic Fibrosis Centre, Wythenshawe Hospital, Manchester University Hospitals NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
| | - Phillipa Burns
- Royal Manchester Children’s Hospital, Manchester M13 9WL, UK
| | - Omendra Narayan
- Royal Manchester Children’s Hospital, Manchester M13 9WL, UK
| | | | - Jane F. Turton
- National Infection Service, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| |
Collapse
|
11
|
See-Too WS, Ambrose M, Malley R, Ee R, Mulcahy E, Manche E, Lazenby J, McEwan B, Pagnon J, Chen JW, Chan KG, Turnbull L, Whitchurch CB, Roddam LF. Pandoraea fibrosis sp. nov., a novel Pandoraea species isolated from clinical respiratory samples. Int J Syst Evol Microbiol 2019; 69:645-651. [DOI: 10.1099/ijsem.0.003147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Wah Seng See-Too
- 1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Mark Ambrose
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
| | - Roslyn Malley
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
- 3Department of Pathology, Royal Hobart Hospital, Tasmania 7001, Australia
| | - Robson Ee
- 1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Emily Mulcahy
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
- 3Department of Pathology, Royal Hobart Hospital, Tasmania 7001, Australia
| | - Emily Manche
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
| | - James Lazenby
- 4The ithree Institute, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - Belinda McEwan
- 5Department of Microbiology and Infectious Disease, Royal Hobart Hospital, Tasmania 7001, Australia
| | - Joanne Pagnon
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
| | - Jian Woon Chen
- 1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Kok Gan Chan
- 1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
- 6International Genome Centre, Jiangsu University, Zhenjiang, PR China
| | - Lynne Turnbull
- 4The ithree Institute, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - Cynthia B. Whitchurch
- 4The ithree Institute, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - Louise F. Roddam
- 2School of Medicine, Faculty of Health, University of Tasmania, Tasmania 7001, Australia
| |
Collapse
|
12
|
|
13
|
Kumar M, Verma S, Gazara RK, Kumar M, Pandey A, Verma PK, Thakur IS. Genomic and proteomic analysis of lignin degrading and polyhydroxyalkanoate accumulating β-proteobacterium Pandoraea sp. ISTKB. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:154. [PMID: 29991962 PMCID: PMC5987411 DOI: 10.1186/s13068-018-1148-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/17/2018] [Indexed: 05/06/2023]
Abstract
BACKGROUND Lignin is a major component of plant biomass and is recalcitrant to degradation due to its complex and heterogeneous aromatic structure. The biomass-based research mainly focuses on polysaccharides component of biomass and lignin is discarded as waste with very limited usage. The sustainability and success of plant polysaccharide-based biorefinery can be possible if lignin is utilized in improved ways and with minimal waste generation. Discovering new microbial strains and understanding their enzyme system for lignin degradation are necessary for its conversion into fuel and chemicals. The Pandoraea sp. ISTKB was previously characterized for lignin degradation and successfully applied for pretreatment of sugarcane bagasse and polyhydroxyalkanoate (PHA) production. In this study, genomic analysis and proteomics on aromatic polymer kraft lignin and vanillic acid are performed to find the important enzymes for polymer utilization. RESULTS Genomic analysis of Pandoraea sp. ISTKB revealed the presence of strong lignin degradation machinery and identified various candidate genes responsible for lignin degradation and PHA production. We also applied label-free quantitative proteomic approach to identify the expression profile on monoaromatic compound vanillic acid (VA) and polyaromatic kraft lignin (KL). Genomic and proteomic analysis simultaneously discovered Dyp-type peroxidase, peroxidases, glycolate oxidase, aldehyde oxidase, GMC oxidoreductase, laccases, quinone oxidoreductase, dioxygenases, monooxygenases, glutathione-dependent etherases, dehydrogenases, reductases, and methyltransferases and various other recently reported enzyme systems such as superoxide dismutases or catalase-peroxidase for lignin degradation. A strong stress response and detoxification mechanism was discovered. The two important gene clusters for lignin degradation and three PHA polymerase spanning gene clusters were identified and all the clusters were functionally active on KL-VA. CONCLUSIONS The unusual aerobic '-CoA'-mediated degradation pathway of phenylacetate and benzoate (reported only in 16 and 4-5% of total sequenced bacterial genomes), peroxidase-accessory enzyme system, and fenton chemistry based are the major pathways observed for lignin degradation. Both ortho and meta ring cleavage pathways for aromatic compound degradation were observed in expression profile. Genomic and proteomic approaches provided validation to this strain's robust machinery for the metabolism of recalcitrant compounds and PHA production and provide an opportunity to target important enzymes for lignin valorization in future.
Collapse
Affiliation(s)
- Madan Kumar
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sandhya Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Rajesh Kumar Gazara
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Manish Kumar
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, 31 MG Marg, Lucknow, 226 001 India
| | - Praveen Kumar Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067 India
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| |
Collapse
|
14
|
Chen WM, Xie PB, Hsu MY, Sheu SY. Parvibium lacunae gen. nov., sp. nov., a new member of the family Alcaligenaceae isolated from a freshwater pond. Int J Syst Evol Microbiol 2018; 68:1291-1299. [PMID: 29498621 DOI: 10.1099/ijsem.0.002667] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A bacterial strain designated KMB9T was isolated from a freshwater pond in Taiwan and characterized using a polyphasic taxonomy approach. Cells of strain KMB9T were Gram-stain-negative, aerobic, poly-β-hydroxybutyrate-accumulating, motile by means of a monopolar flagellum, non-spore-forming and rods surrounded by a thick capsule and forming white-coloured colonies. Growth occurred at 20-40 °C (optimum, 25-37 °C), at pH 6.5-7.5 (optimum, pH 7.0) and with 0-0.5 % NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene and four housekeeping gene sequences (recA, rpoA, rpoB and atpD) showed that strain KMB9T forms a distinct phyletic line within the family Alcaligenaceae, and the levels of 16S rRNA gene sequence similarity to its closest relatives with validly published names were less than 93.3 %. The predominant fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C18 : 1ω7c. The major isoprenoid quinone was Q-8. The major polyamine was putrescine. The polar lipid profile revealed the presence of phosphatidylethanolamine, phosphatidylglycerol and several uncharacterized aminophospholipids, aminolipids, phospholipids and lipids. The genomic DNA G+C content of strain KMB9T was 54.5 mol%. On the basis of the genotypic and phenotypic data, strain KMB9T represents a novel species of a new genus in the family Alcaligenaceae, for which the name Parvibium lacunae gen. nov., sp. nov. is proposed. The type strain is KMB9T (=BCRC 81053T=LMG 30055T=KCTC 52814T).
Collapse
Affiliation(s)
- Wen-Ming Chen
- Department of Seafood Science, Laboratory of Microbiology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| | - Pei-Bei Xie
- Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| | - Ming-Yuan Hsu
- Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| | - Shih-Yi Sheu
- Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| |
Collapse
|
15
|
Kostygov AY, Butenko A, Nenarokova A, Tashyreva D, Flegontov P, Lukeš J, Yurchenko V. Genome of Ca. Pandoraea novymonadis, an Endosymbiotic Bacterium of the Trypanosomatid Novymonas esmeraldas. Front Microbiol 2017; 8:1940. [PMID: 29046673 PMCID: PMC5632650 DOI: 10.3389/fmicb.2017.01940] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 09/21/2017] [Indexed: 12/22/2022] Open
Abstract
We have sequenced, annotated, and analyzed the genome of Ca. Pandoraea novymonadis, a recently described bacterial endosymbiont of the trypanosomatid Novymonas esmeraldas. When compared with genomes of its free-living relatives, it has all the hallmarks of the endosymbionts’ genomes, such as significantly reduced size, extensive gene loss, low GC content, numerous gene rearrangements, and low codon usage bias. In addition, Ca. P. novymonadis lacks mobile elements, has a strikingly low number of pseudogenes, and almost all genes are single copied. This suggests that it already passed the intensive period of host adaptation, which still can be observed in the genome of Polynucleobacter necessarius, a certainly recent endosymbiont. Phylogenetically, Ca. P. novymonadis is more related to P. necessarius, an intracytoplasmic bacterium of free-living ciliates, than to Ca. Kinetoplastibacterium spp., the only other known endosymbionts of trypanosomatid flagellates. As judged by the extent of the overall genome reduction and the loss of particular metabolic abilities correlating with the increasing dependence of the symbiont on its host, Ca. P. novymonadis occupies an intermediate position P. necessarius and Ca. Kinetoplastibacterium spp. We conclude that the relationships between Ca. P. novymonadis and N. esmeraldas are well-established, although not as fine-tuned as in the case of Strigomonadinae and their endosymbionts.
Collapse
Affiliation(s)
- Alexei Y Kostygov
- Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.,Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia
| | - Anzhelika Butenko
- Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.,Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia
| | - Anna Nenarokova
- Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia.,Faculty of Sciences, University of South Bohemia, České Budějovice, Czechia
| | - Daria Tashyreva
- Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia
| | - Pavel Flegontov
- Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.,Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia.,Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, Russia
| | - Julius Lukeš
- Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia.,Faculty of Sciences, University of South Bohemia, České Budějovice, Czechia
| | - Vyacheslav Yurchenko
- Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.,Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice, Czechia.,Institute of Environmental Technologies, Faculty of Science, University of Ostrava, Ostrava, Czechia
| |
Collapse
|
16
|
Tirado-Torres D, Acevedo-Sandoval O, Rodríguez-Pastrana BR, Gayosso-Canales M. Phylogeny and polycyclic aromatic hydrocarbons degradation potential of bacteria isolated from crude oil-contaminated site. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:897-904. [PMID: 28463567 DOI: 10.1080/10934529.2017.1316170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study employed the use of 16S rRNA gene sequence analysis to identify three of four native bacterial strains isolated from crude oil-contaminated site in Poza Rica, Veracruz, Mexico. The identified bacteria were Ochrobactrum intermedium, Pandoraea pnomenusa and Ochrobactrum sp., but SA2-09 strain was not identified. The ability of the isolates to degrade polycyclic aromatic hydrocarbons (PAHs) was evaluated at 31.61 and 54.52 mg/kg PAHs in soil, when used as crude oil in soil microcosm during 80 days of incubation at 30°C. The results demonstrated that O. intermedium biodegraded many PAHs, including the high molecular weight (HMW) PAHs fluoranthene (100% equivalent 0.24 mg/kg), benzo [b] fluoranthene (81.8% equal 0.18 mg/kg), Benzo[a]pyrene (87.0%, 0.20 mg/kg) and Benzo[g,h,i]perylene (52.7%, 0.39 mg/kg). P. pnomenusa had a degradation profile of HMW PAHs, which was similar to O. intermedium, while Ochrobactrum sp. and the strain SA-09 exhibited lower degradation rates of HMW.
Collapse
Affiliation(s)
- David Tirado-Torres
- a Institute of Basic Sciences and Engineering, Autonomous University of Hidalgo (UAEH) , Pahuca, Hidalgo , Mexico
| | - Otilio Acevedo-Sandoval
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
| | - Blanca R Rodríguez-Pastrana
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
| | - Martha Gayosso-Canales
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
| |
Collapse
|
17
|
Formosimonas limnophila gen. nov., sp. nov., a new member of the family Burkholderiaceae isolated from a freshwater lake. Int J Syst Evol Microbiol 2017; 67:17-24. [DOI: 10.1099/ijsem.0.001561] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
18
|
Yong D, Tee KK, Yin WF, Chan KG. Characterization and Comparative Overview of Complete Sequences of the First Plasmids of Pandoraea across Clinical and Non-clinical Strains. Front Microbiol 2016; 7:1606. [PMID: 27790203 PMCID: PMC5064223 DOI: 10.3389/fmicb.2016.01606] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/26/2016] [Indexed: 11/25/2022] Open
Abstract
To date, information on plasmid analysis in Pandoraea spp. is scarce. To address the gap of knowledge on this, the complete sequences of eight plasmids from Pandoraea spp. namely Pandoraea faecigallinarum DSM 23572T (pPF72-1, pPF72-2), Pandoraea oxalativorans DSM 23570T (pPO70-1, pPO70-2, pPO70-3, pPO70-4), Pandoraea vervacti NS15 (pPV15) and Pandoraea apista DSM 16535T (pPA35) were studied for the first time in this study. The information on plasmid sequences in Pandoraea spp. is useful as the sequences did not match any known plasmid sequence deposited in public databases. Replication genes were not identified in some plasmids, a situation that has led to the possibility of host interaction involvement. Some plasmids were also void of par genes and intriguingly, repA gene was also not discovered in these plasmids. This further leads to the hypothesis of host-plasmid interaction. Plasmid stabilization/stability protein-encoding genes were observed in some plasmids but were not established for participating in plasmid segregation. Toxin-antitoxin systems MazEF, VapBC, RelBE, YgiT-MqsR, HigBA, and ParDE were identified across the plasmids and their presence would improve plasmid maintenance. Conjugation genes were identified portraying the conjugation ability amongst Pandoraea plasmids. Additionally, we found a shared region amongst some of the plasmids that consists of conjugation genes. The identification of genes involved in replication, segregation, toxin-antitoxin systems and conjugation, would aid the design of drugs to prevent the survival or transmission of plasmids carrying pathogenic properties. Additionally, genes conferring virulence and antibiotic resistance were identified amongst the plasmids. The observed features in the plasmids shed light on the Pandoraea spp. as opportunistic pathogens.
Collapse
Affiliation(s)
- Delicia Yong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Kok Keng Tee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| |
Collapse
|
19
|
Sheu SY, Li YS, Chen WM. Piscinibacterium candidicorallinum gen. nov., sp. nov., a member of the order Burkholderiales isolated from a fish pond. Int J Syst Evol Microbiol 2016; 66:5260-5267. [PMID: 27665758 DOI: 10.1099/ijsem.0.001505] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A bacterial strain designated LYH-15T was isolated from a freshwater fish pond in Taiwan and characterized using a polyphasic taxonomy approach. Cells of LYH-15T were Gram-staining-negative, aerobic, motile by means of a single polar flagellum, poly-β-hydroxybutyrate-containing, non-spore forming, straight rods and formed light-coral-colored colonies. Growth occurred at 15-40 °C (optimum, 30 °C), at pH 5.0-9.0 (optimum, pH 7.0) and with 0-0.5 % NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that LYH-15T forms a distinct phyletic line within the order Burkholderiales, with less than 94 % sequence similarity to its closest relatives with validly published names. The predominant fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C18 : 1ω7c. The major isoprenoid quinone was Q-8 and the DNA G+C content was 63.8 mol%. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and several uncharacterized lipids. The major polyamines were 2-hydroxyputrescine and putrescine. On the basis of the genotypic and phenotypic data, LYH-15T represents a novel species of a new genus in the order Burkholderiales, for which the name Piscinibacterium candidicorallinum gen. nov., sp. nov. is proposed. The type strain is LYH-15T (=BCRC 80969T=LMG 29480T=KCTC 52168T).
Collapse
Affiliation(s)
- Shih-Yi Sheu
- Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd, Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| | - Yi-Shu Li
- Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd, Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| | - Wen-Ming Chen
- Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd, Nan-Tzu, Kaohsiung City 811, Taiwan, ROC
| |
Collapse
|
20
|
Jeong SE, Lee HJ, Jia B, Jeon CO. Pandoraea terrae sp. nov., isolated from forest soil, and emended description of the genus Pandoraea Coenye et al. 2000. Int J Syst Evol Microbiol 2016; 66:3524-3530. [PMID: 27267599 DOI: 10.1099/ijsem.0.001229] [Citation(s) in RCA: 17] [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 Gram-staining-negative, facultatively aerobic, white-colony-forming bacterium, designated strain SE-S21T, was isolated from forest soil of Jeju Island in Korea. Cells were motile rods with a single polar flagellum, showing catalase- and oxidase-positive reactions. Growth was observed at 10-40 °C (optimum, 30 °C), pH 4.0-10.0 (optimum, pH 7.0-7.5) and with 0-4.0 % (w/v) NaCl (optimum, 0-2 %). Only ubiquinone-8 was detected as the isoprenoid quinone, and C16 : 0, C17 : 0 cyclo, C19 : 1ω8c cyclo and summed feature 2 (comprising C12 : 0 aldehyde and/or unknown) were found to be the major fatty acids. Phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, an unknown aminophospholipid, an unknown aminolipid and an unknown lipid were detected as the major polar lipids. Putrescine and 2-hydroxyputrescine were the predominant polyamines. The DNA G+C content was 61.0 mol%. Phylogenetic analyses based on 16S rRNA and DNA gyrase B gene sequences revealed that strain SE-S21T formed a phyletic lineage within the genus Pandoraea. Strain SE-S21T was most closely related to Pandoraea faecigallinarum KOxT and Pandoraea pnomenusa CCUG 38742T with 98.8 % and 98.7 % 16S rRNA gene sequence similarities, respectively. However, the DNA-DNA relatedness values between strain SE-S21T and the type strains of P. faecigallinarum and P. pnomenusa were 26.6±5.7 % and 20.5±3.7 %, respectively. On the basis of phenotypic, chemotaxonomic and molecular features, strain SE-S21T clearly represents a novel species of the genus Pandoraea, for which the name Pandoraea terrae sp. nov. is proposed. The type strain is SE-S21T (=KACC 18127T=JCM 30137T). An emended description of the genus Pandoraea is also proposed.
Collapse
Affiliation(s)
- Sang Eun Jeong
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hyo Jung Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Baolei Jia
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Che Ok Jeon
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| |
Collapse
|
21
|
Abstract
We describe a novel symbiotic association between a kinetoplastid protist, Novymonas esmeraldas gen. nov., sp. nov., and an intracytoplasmic bacterium, “Candidatus Pandoraea novymonadis” sp. nov., discovered as a result of a broad-scale survey of insect trypanosomatid biodiversity in Ecuador. We characterize this association by describing the morphology of both organisms, as well as their interactions, and by establishing their phylogenetic affinities. Importantly, neither partner is closely related to other known organisms previously implicated in eukaryote-bacterial symbiosis. This symbiotic association seems to be relatively recent, as the host does not exert a stringent control over the number of bacteria harbored in its cytoplasm. We argue that this unique relationship may represent a suitable model for studying the initial stages of establishment of endosymbiosis between a single-cellular eukaryote and a prokaryote. Based on phylogenetic analyses, Novymonas could be considered a proxy for the insect-only ancestor of the dixenous genus Leishmania and shed light on the origin of the two-host life cycle within the subfamily Leishmaniinae. The parasitic trypanosomatid protist Novymonas esmeraldas gen. nov., sp. nov. entered into endosymbiosis with the bacterium “Ca. Pandoraea novymonadis” sp. nov. This novel and rather unstable interaction shows several signs of relatively recent establishment, qualifying it as a potentially unique transient stage in the increasingly complex range of eukaryotic-prokaryotic relationships.
Collapse
|
22
|
Ohshima S, Sato Y, Fujimura R, Takashima Y, Hamada M, Nishizawa T, Narisawa K, Ohta H. Mycoavidus cysteinexigens gen. nov., sp. nov., an endohyphal bacterium isolated from a soil isolate of the fungus Mortierella elongata. Int J Syst Evol Microbiol 2016; 66:2052-2057. [PMID: 26920389 DOI: 10.1099/ijsem.0.000990] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An endohyphal bacterium (strain B1-EBT) living in association with the fungus Mortierella elongata FMR23-6 I-B1 was isolated from a fungal cell homogenate and studied for its taxonomic allocation. Cells were Gram-stain-negative, rod-shaped, non-spore-forming, non-motile, and negative for oxidase and catalase. Strain B1-EBT required cysteine for growth and grew at temperatures between 4 and 35 °C. A comparative analysis of 16S rRNA gene sequences revealed that strain B1-EBT forms a distinct clade in the family Burkholderiaceae, encompassing a group of endosymbionts associated with several soil isolates of M. elongata. The most closely related genus is 'Candidatus Glomeribacter gigasporarum', an endosymbiont of the arbuscular mycorrhizal fungus Gigaspora margarita. The major cellular fatty acids of strain B1-EBT were C16 : 0, summed feature 3 (C16 : 1ω7c and C16 : 1ω6c) and summed feature 8 (C18 : 1ω7c or C18 : 1ω6c). Ubiquinone Q-8 was the only quinone detected. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an unknown aminophospholipid and two unknown aminolipids. The DNA G+C content was 49.8 mol%. On the basis of phenotypic, chemotaxonomic, and phylogenetic characteristics, strain B1-EBT represents a novel genus and novel species in the family Burkholderiaceae, for which the name Mycoavidus cysteinexigens gen. nov., sp. nov. is proposed. The type strain is B1-EBT ( = JCM 30646T = LMG 28693T = NBRC 110909T).
Collapse
Affiliation(s)
- Shoko Ohshima
- Ibaraki University College of Agriculture,3-21-1 Chuo, Ami-machi, Ibaraki 300-0393,Japan
| | - Yoshinori Sato
- National Research Institute for Cultural Properties,Tokyo, 13-43 Ueno-park, Taito-ku, Tokyo 110-8713,Japan
| | - Reiko Fujimura
- Atmosphere and Ocean Research Institute, The University of Tokyo,5-1-5, Kashiwanoha, Kashiwa-shi, Chiba 277-8564,Japan
| | - Yusuke Takashima
- Ibaraki University College of Agriculture,3-21-1 Chuo, Ami-machi, Ibaraki 300-0393,Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology,3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509,Japan
| | - Moriyuki Hamada
- Biological Resource Center, National Institute of Technology and Evaluation (NBRC),2-5-8 Kazusakamatari, Kisarazu-shi, Chiba 292-0818,Japan
| | - Tomoyasu Nishizawa
- Ibaraki University College of Agriculture,3-21-1 Chuo, Ami-machi, Ibaraki 300-0393,Japan
| | - Kazuhiko Narisawa
- Ibaraki University College of Agriculture,3-21-1 Chuo, Ami-machi, Ibaraki 300-0393,Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology,3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509,Japan
| | - Hiroyuki Ohta
- Ibaraki University College of Agriculture,3-21-1 Chuo, Ami-machi, Ibaraki 300-0393,Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology,3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509,Japan
| |
Collapse
|
23
|
Lim YL, Ee R, Yong D, Yu CY, Ang GY, Tee KK, Yin WF, Chan KG. Complete Genome Sequence Analysis of Pandoraea pnomenusa Type Strain DSM 16536(T) Isolated from a Cystic Fibrosis Patient. Front Microbiol 2016; 7:109. [PMID: 26903988 PMCID: PMC4744841 DOI: 10.3389/fmicb.2016.00109] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/21/2016] [Indexed: 01/07/2023] Open
Affiliation(s)
- Yan-Lue Lim
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Delicia Yong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Choo-Yee Yu
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Geik-Yong Ang
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Kok-Keng Tee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| |
Collapse
|
24
|
Chan KG, Yong D, Ee R, Lim YL, Yu CY, Tee KK, Yin WF, Ang GY. Complete genome sequence of Pandoraea oxalativorans DSM 23570(T), an oxalate metabolizing soil bacterium. J Biotechnol 2016; 219:124-5. [PMID: 26742625 DOI: 10.1016/j.jbiotec.2015.12.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 12/23/2015] [Indexed: 11/24/2022]
Abstract
Pandoraea oxalativorans DSM 23570(T) is an oxalate-degrading bacterium that was originally isolated from soil litter near to oxalate-producing plant of the genus Oxalis. Here, we report the first complete genome of P. oxalativorans DSM 23570(T) which would allow its potential biotechnological applications to be unravelled.
Collapse
Affiliation(s)
- Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
| | - Delicia Yong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Yan-Lue Lim
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Choo-Yee Yu
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Kok-Keng Tee
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Geik-Yong Ang
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
25
|
Degand N, Lotte R, Decondé Le Butor C, Segonds C, Thouverez M, Ferroni A, Vallier C, Mély L, Carrère J. Epidemic spread of Pandoraea pulmonicola in a cystic fibrosis center. BMC Infect Dis 2015; 15:583. [PMID: 26705696 PMCID: PMC4691299 DOI: 10.1186/s12879-015-1327-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 12/17/2015] [Indexed: 11/10/2022] Open
Abstract
Background Pandoraea spp. are recently discovered bacteria, mainly recovered from cystic fibrosis (CF) patients, but their epidemiology and clinical significance are not well known. We describe an epidemic spread of Pandoraea pulmonicola from 2009 in our CF center, involving 6 out of 243 CF patients. Methods Bacterial identification used amplified ribosomal DNA restriction analysis (ARDRA), MALDI-TOF mass spectrometry (MALDI-TOF MS) and 16S rDNA gene sequencing. The clonal link between strains was assessed with pulsed field gel electrophoresis (PFGE) using XbaI. Clinical data were gathered for all patients. Results The index case was chronically colonized since 2000. The main hypothesis for this bacterial spread was a droplet cross-transmission, due to preventive measures not being strictly followed. Antibiotic susceptibility testing revealed resistance to beta-lactams, ciprofloxacin and colistin. However, there was susceptibility to trimethoprim-sulfamethoxazole. All patients were chronically colonized with Pseudomonas aeruginosa, and the acquisition of P. pulmonicola resulted in chronic colonization in all patients. Three patients died, and two patients remained clinically stable, whereas one patient had a decline in lung function. Conclusions This study, which is the first to describe an epidemic spread of P. pulmonicola, notes the potential transmissibility of this bacterial species and the need for infection control measures.
Collapse
Affiliation(s)
- Nicolas Degand
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Nice, Hôpital Archet II, Nice, France.
| | - Romain Lotte
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Nice, Hôpital Archet II, Nice, France. .,INSERM 1065-Centre Méditerranéen de Médecine moléculaire, « Toxines microbiennes dans la relation hôte-agents pathogènes », Bâtiment Universitaire Archimed, Nice, France. .,Faculté de Médicine, Université de Nice Sophia-Antipolis, Nice, France.
| | - Célia Decondé Le Butor
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire de Nice, Hôpital Archet II, Nice, France.
| | - Christine Segonds
- Observatoire Burkholderia cepacia, Laboratoire de Bactériologie, Hôpital Purpan, Toulouse, France.
| | | | - Agnès Ferroni
- Laboratoire de Bactériologie, Hôpital Necker-Enfants Malades, Paris, France.
| | | | | | | |
Collapse
|
26
|
Lim YL, Ee R, Yong D, Tee KK, Yin WF, Chan KG. Complete genome of Pandoraea pnomenusa RB-38, an oxalotrophic bacterium isolated from municipal solid waste landfill site. J Biotechnol 2015; 214:83-4. [PMID: 26393955 DOI: 10.1016/j.jbiotec.2015.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 09/16/2015] [Indexed: 10/23/2022]
Abstract
Pandoraea pnomenusa RB-38 is a bacterium isolated from a former sanitary landfill site. Here, we present the complete genome of P. pnomenusa RB38 in which an oxalate utilization pathway was identified. The genome analysis suggested the potential of this strain as an effective biocontrol agent against oxalate-producing phytopathogens.
Collapse
Affiliation(s)
- Yan-Lue Lim
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Robson Ee
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Delicia Yong
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kok-Keng Tee
- Department of Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| |
Collapse
|
27
|
Ee R, Yong D, Lim YL, Yin WF, Chan KG. Complete genome sequence of oxalate-degrading bacterium Pandoraea vervacti DSM 23571(T). J Biotechnol 2015; 204:5-6. [PMID: 25848988 DOI: 10.1016/j.jbiotec.2015.03.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 03/27/2015] [Indexed: 11/17/2022]
Abstract
Pandoraea vervacti DSM 23571(T) is an oxalate metabolizing bacterium isolated from an uncultivated field soil in Mugla, Turkey. Here, we present the first complete genome sequence of P. vervacti DSM 23571(T). A complete pathway for degradation of oxalate was revealed from the genome analysis. These data are important to path new opportunities for genetic engineering in the field of biotechnology.
Collapse
Affiliation(s)
- Robson Ee
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Delicia Yong
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Yan Lue Lim
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Wai-Fong Yin
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
| |
Collapse
|
28
|
Isolation and characterization of oxalotrophic bacteria from tropical soils. Arch Microbiol 2014; 197:65-77. [PMID: 25381572 DOI: 10.1007/s00203-014-1055-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 08/12/2014] [Accepted: 10/24/2014] [Indexed: 10/24/2022]
Abstract
The oxalate-carbonate pathway (OCP) is a biogeochemical set of reactions that involves the conversion of atmospheric CO2 fixed by plants into biomass and, after the biological recycling of calcium oxalate by fungi and bacteria, into calcium carbonate in terrestrial environments. Oxalotrophic bacteria are a key element of this process because of their ability to oxidize calcium oxalate. However, the diversity and alternative carbon sources of oxalotrophs participating to this pathway are unknown. Therefore, the aim of this study was to characterize oxalotrophic bacteria in tropical OCP systems from Bolivia, India, and Cameroon. Ninety-five oxalotrophic strains were isolated and identified by sequencing of the 16S rRNA gene. Four genera corresponded to newly reported oxalotrophs (Afipia, Polaromonas, Humihabitans, and Psychrobacillus). Ten strains were selected to perform a more detailed characterization. Kinetic curves and microcalorimetry analyses showed that Variovorax soli C18 has the highest oxalate consumption rate with 0.240 µM h(-1). Moreover, Streptomyces achromogenes A9 displays the highest metabolic plasticity. This study highlights the phylogenetic and physiological diversity of oxalotrophic bacteria in tropical soils under the influence of the oxalate-carbonate pathway.
Collapse
|
29
|
Costello A, Reen FJ, O'Gara F, Callaghan M, McClean S. Inhibition of co-colonizing cystic fibrosis-associated pathogens by Pseudomonas aeruginosa and Burkholderia multivorans. MICROBIOLOGY-SGM 2014; 160:1474-1487. [PMID: 24790091 DOI: 10.1099/mic.0.074203-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cystic fibrosis (CF) is a recessive genetic disease characterized by chronic respiratory infections and inflammation causing permanent lung damage. Recurrent infections are caused by Gram-negative antibiotic-resistant bacterial pathogens such as Pseudomonas aeruginosa, Burkholderia cepacia complex (Bcc) and the emerging pathogen genus Pandoraea. In this study, the interactions between co-colonizing CF pathogens were investigated. Both Pandoraea and Bcc elicited potent pro-inflammatory responses that were significantly greater than Ps. aeruginosa. The original aim was to examine whether combinations of pro-inflammatory pathogens would further exacerbate inflammation. In contrast, when these pathogens were colonized in the presence of Ps. aeruginosa the pro-inflammatory response was significantly decreased. Real-time PCR quantification of bacterial DNA from mixed cultures indicated that Ps. aeruginosa significantly inhibited the growth of Burkholderia multivorans, Burkholderia cenocepacia, Pandoraea pulmonicola and Pandoraea apista, which may be a factor in its dominance as a colonizer of CF patients. Ps. aeruginosa cell-free supernatant also suppressed growth of these pathogens, indicating that inhibition was innate rather than a response to the presence of a competitor. Screening of a Ps. aeruginosa mutant library highlighted a role for quorum sensing and pyoverdine biosynthesis genes in the inhibition of B. cenocepacia. Pyoverdine was confirmed to contribute to the inhibition of B. cenocepacia strain J2315. B. multivorans was the only species that could significantly inhibit Ps. aeruginosa growth. B. multivorans also inhibited B. cenocepacia and Pa. apista. In conclusion, both Ps. aeruginosa and B. multivorans are capable of suppressing growth and virulence of co-colonizing CF pathogens.
Collapse
Affiliation(s)
- Anne Costello
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
| | - F Jerry Reen
- BIOMERIT Research Centre, Department of Microbiology, University College Cork, Ireland
| | - Fergal O'Gara
- Curtin University, School of Biomedical Sciences, Perth, WA 6845, Australia.,BIOMERIT Research Centre, Department of Microbiology, University College Cork, Ireland
| | - Máire Callaghan
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
| | - Siobhán McClean
- Centre of Microbial Host Interactions, Centre of Applied Science for Health, Institute of Technology Tallaght, Old Blessington Road, Tallaght, Dublin 24, Ireland
| |
Collapse
|