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Belaid K, Swanson E, Carré-Mlouka A, Hocher V, Svistoonoff S, Gully D, Simpson S, Morris K, Thomas WK, Amrani S, Tisa LS, Gherbi H. Draft Genome Sequence of the Symbiotic Frankia sp. strain B2 isolated from root nodules of Casuarina cunninghamiana found in Algeria. J Genomics 2020; 8:11-15. [PMID: 32064004 PMCID: PMC7019079 DOI: 10.7150/jgen.38461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/22/2019] [Indexed: 11/05/2022] Open
Abstract
Frankia sp. strain B2 was isolated from Casuarina cunninghamiana nodules. Here, we report the 5.3-Mbp draft genome sequence of Frankia sp. strain B2 with a G+C content of 70.1 % and 4,663 candidate protein-encoding genes. Analysis of the genome revealed the presence of high numbers of secondary metabolic biosynthetic gene clusters.
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Affiliation(s)
- Kathia Belaid
- Laboratoire de Biologie du Sol, Faculté des Sciences Biologiques, Université des Sciences et de la Technologies Houari Boumediene (USTHB), BP32 El Alia - Bab Ezzouar Algiers, Algeria.,Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France
| | - Erik Swanson
- University of New Hampshire, 46 College Rd., Durham, New Hampshire, USA, 03824-2617
| | - Alyssa Carré-Mlouka
- Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France.,Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM) UMR 7245 CNRS-MNHN), Museum national d'Histoire naturelle, Centre National de la Recherche Scientifique (CNRS), CP 54, 57 rue Cuvier, 75005 Paris, France
| | - Valérie Hocher
- Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France
| | - Sergio Svistoonoff
- Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France
| | - Djamel Gully
- Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France
| | - Stephen Simpson
- University of New Hampshire, 46 College Rd., Durham, New Hampshire, USA, 03824-2617
| | - Krystalynne Morris
- University of New Hampshire, 46 College Rd., Durham, New Hampshire, USA, 03824-2617
| | - W Kelley Thomas
- University of New Hampshire, 46 College Rd., Durham, New Hampshire, USA, 03824-2617
| | - Said Amrani
- Laboratoire de Biologie du Sol, Faculté des Sciences Biologiques, Université des Sciences et de la Technologies Houari Boumediene (USTHB), BP32 El Alia - Bab Ezzouar Algiers, Algeria
| | - Louis S Tisa
- University of New Hampshire, 46 College Rd., Durham, New Hampshire, USA, 03824-2617
| | - Hassen Gherbi
- Laboratoire des Symbioses Tropicales et Méditerranéennes (IRD/INRA/CIRAD/Université de Montpellier/Supagro), 34398 Montpellier Cedex 5, France
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2
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Gtari M, Nouioui I, Sarkar I, Ghodhbane-Gtari F, Tisa LS, Sen A, Klenk HP. An update on the taxonomy of the genus Frankia Brunchorst, 1886, 174 AL. Antonie van Leeuwenhoek 2018; 112:5-21. [PMID: 30232679 DOI: 10.1007/s10482-018-1165-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/14/2018] [Indexed: 12/30/2022]
Abstract
Since the recognition of the name Frankia in the Approved Lists of bacterial names (1980), few amendments have been given to the genus description. Successive editions of Bergey's Manual of Systematics of Archaea and Bacteria have broadly conflicting suprageneric treatments of the genus without any advances for subgeneric classification. This review focuses on recent results from taxongenomics and phenoarray approaches to the positioning and the structuring of the genus Frankia. Based on phylogenomic analyses, Frankia should be considered the single member of the family Frankiaceae within the monophyletic order, Frankiales. A polyphasic strategy incorporating genome to genome data and omniLog® phenoarrays, together with classical approaches, has allowed the designation and an amended description of a type strain of the type species Frankia alni, and the recognition of at least 10 novel species covering symbiotic and non symbiotic taxa within the genus. Genome to phenome data will be shortly incorporated in the scheme for proposing novel species including those recalcitrant to isolation in axenic culture.
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Affiliation(s)
- Maher Gtari
- Institut National des Sciences Appliquées et de Technologie, Université Carthage, Centre Urbain Nord, BP 676-1080, Tunis Cedex, Tunisia.
| | - Imen Nouioui
- School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK
| | - Indrani Sarkar
- NBU Bioinformatics Facility, Department of Botany, University of North Bengal, Siliguri, 734013, India
| | - Faten Ghodhbane-Gtari
- Institut National des Sciences Appliquées et de Technologie, Université Carthage, Centre Urbain Nord, BP 676-1080, Tunis Cedex, Tunisia.,Laboratoire Microorganismes et Biomolécules Actives, Université Tunis El Manar, 2092, Tunis, Tunisia
| | - Louis S Tisa
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, 46 College Road, Durham, NH, 03824-2617, USA
| | - Arnab Sen
- NBU Bioinformatics Facility, Department of Botany, University of North Bengal, Siliguri, 734013, India
| | - Hans-Peter Klenk
- School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK
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Mansour S, Swanson E, McNutt Z, Pesce C, Harrington K, Abebe-Alele F, Simpson S, Morris K, Thomas WK, Tisa LS. Permanent Draft Genome sequence for Frankia sp . strain CcI49, a Nitrogen-Fixing Bacterium Isolated from Casuarina cunninghamiana that Infects Elaeagnaceae. J Genomics 2017; 5:119-123. [PMID: 28943973 PMCID: PMC5607709 DOI: 10.7150/jgen.22138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/31/2017] [Indexed: 01/22/2023] Open
Abstract
Frankia sp. strain CcI49 was isolated from Casuarina cunninghamiana nodules. However the strain was unable to re-infect Casuarina, but was able to infect other actinorhizal plants including Elaeagnaceae. Here, we report the 9.8-Mbp draft genome sequence of Frankia sp. strain CcI49 with a G+C content of 70.5 % and 7,441 candidate protein-encoding genes. Analysis of the genome revealed the presence of a bph operon involved in the degradation of biphenyls and polychlorinated biphenyls.
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Affiliation(s)
| | - Erik Swanson
- University of New Hampshire, Durham, New Hampshire, USA
| | | | - Céline Pesce
- University of New Hampshire, Durham, New Hampshire, USA
| | | | | | | | | | | | - Louis S Tisa
- University of New Hampshire, Durham, New Hampshire, USA
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4
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Ktari A, Nouioui I, Furnholm T, Swanson E, Ghodhbane-Gtari F, Tisa LS, Gtari M. Permanent draft genome sequence of Frankia sp. NRRL B-16219 reveals the presence of canonical nod genes, which are highly homologous to those detected in Candidatus Frankia Dg1 genome. Stand Genomic Sci 2017; 12:51. [PMID: 28878862 PMCID: PMC5584510 DOI: 10.1186/s40793-017-0261-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 08/22/2017] [Indexed: 01/24/2023] Open
Abstract
Frankia sp. NRRL B-16219 was directly isolated from a soil sample obtained from the rhizosphere of Ceanothus jepsonii growing in the USA. Its host plant range includes members of Elaeagnaceae species. Phylogenetically, strain NRRL B-16219 is closely related to "Frankia discariae" with a 16S rRNA gene similarity of 99.78%. Because of the lack of genetic tools for Frankia, our understanding of the bacterial signals involved during the plant infection process and the development of actinorhizal root nodules is very limited. Since the first three Frankia genomes were sequenced, additional genome sequences covering more diverse strains have helped provide insight into the depth of the pangenome and attempts to identify bacterial signaling molecules like the rhizobial canonical nod genes. The genome sequence of Frankia sp. strain NRRL B-16219 was generated and assembled into 289 contigs containing 8,032,739 bp with 71.7% GC content. Annotation of the genome identified 6211 protein-coding genes, 561 pseudogenes, 1758 hypothetical proteins and 53 RNA genes including 4 rRNA genes. The NRRL B-16219 draft genome contained genes homologous to the rhizobial common nodulation genes clustered in two areas. The first cluster contains nodACIJH genes whereas the second has nodAB and nodH genes in the upstream region. Phylogenetic analysis shows that Frankia nod genes are more deeply rooted than their sister groups from rhizobia. PCR-sequencing suggested the widespread occurrence of highly homologous nodA and nodB genes in microsymbionts of field collected Ceanothus americanus.
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Affiliation(s)
- Amir Ktari
- Laboratoire Microorganismes et Biomolécules Actives, Université Tunis El Manar (FST) & Université de Carthage (INSAT), 2092 Tunis, Tunisia
| | - Imen Nouioui
- Laboratoire Microorganismes et Biomolécules Actives, Université Tunis El Manar (FST) & Université de Carthage (INSAT), 2092 Tunis, Tunisia
| | - Teal Furnholm
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, 289 Rudman Hall, 46 college Road, Durham, NH 03824-2617 USA
| | - Erik Swanson
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, 289 Rudman Hall, 46 college Road, Durham, NH 03824-2617 USA
| | - Faten Ghodhbane-Gtari
- Laboratoire Microorganismes et Biomolécules Actives, Université Tunis El Manar (FST) & Université de Carthage (INSAT), 2092 Tunis, Tunisia
| | - Louis S Tisa
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, 289 Rudman Hall, 46 college Road, Durham, NH 03824-2617 USA
| | - Maher Gtari
- Laboratoire Microorganismes et Biomolécules Actives, Université Tunis El Manar (FST) & Université de Carthage (INSAT), 2092 Tunis, Tunisia
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5
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Oshone R, Ngom M, Chu F, Mansour S, Sy MO, Champion A, Tisa LS. Genomic, transcriptomic, and proteomic approaches towards understanding the molecular mechanisms of salt tolerance in Frankia strains isolated from Casuarina trees. BMC Genomics 2017; 18:633. [PMID: 28821232 PMCID: PMC5563000 DOI: 10.1186/s12864-017-4056-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/11/2017] [Indexed: 11/10/2022] Open
Abstract
Background Soil salinization is a worldwide problem that is intensifying because of the effects of climate change. An effective method for the reclamation of salt-affected soils involves initiating plant succession using fast growing, nitrogen fixing actinorhizal trees such as the Casuarina. The salt tolerance of Casuarina is enhanced by the nitrogen-fixing symbiosis that they form with the actinobacterium Frankia. Identification and molecular characterization of salt-tolerant Casuarina species and associated Frankia is imperative for the successful utilization of Casuarina trees in saline soil reclamation efforts. In this study, salt-tolerant and salt-sensitive Casuarina associated Frankia strains were identified and comparative genomics, transcriptome profiling, and proteomics were employed to elucidate the molecular mechanisms of salt and osmotic stress tolerance. Results Salt-tolerant Frankia strains (CcI6 and Allo2) that could withstand up to 1000 mM NaCl and a salt-sensitive Frankia strain (CcI3) which could withstand only up to 475 mM NaCl were identified. The remaining isolates had intermediate levels of salt tolerance with MIC values ranging from 650 mM to 750 mM. Comparative genomic analysis showed that all of the Frankia isolates from Casuarina belonged to the same species (Frankia casuarinae). Pangenome analysis revealed a high abundance of singletons among all Casuarina isolates. The two salt-tolerant strains contained 153 shared single copy genes (most of which code for hypothetical proteins) that were not found in the salt-sensitive(CcI3) and moderately salt-tolerant (CeD) strains. RNA-seq analysis of one of the two salt-tolerant strains (Frankia sp. strain CcI6) revealed hundreds of genes differentially expressed under salt and/or osmotic stress. Among the 153 genes, 7 and 7 were responsive to salt and osmotic stress, respectively. Proteomic profiling confirmed the transcriptome results and identified 19 and 8 salt and/or osmotic stress-responsive proteins in the salt-tolerant (CcI6) and the salt-sensitive (CcI3) strains, respectively. Conclusion Genetic differences between salt-tolerant and salt-sensitive Frankia strains isolated from Casuarina were identified. Transcriptome and proteome profiling of a salt-tolerant strain was used to determine molecular differences correlated with differential salt-tolerance and several candidate genes were identified. Mechanisms involving transcriptional and translational regulation, cell envelop remodeling, and previously uncharacterized proteins appear to be important for salt tolerance. Physiological and mutational analyses will further shed light on the molecular mechanism of salt tolerance in Casuarina associated Frankia isolates. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-4056-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rediet Oshone
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, 46 College Rd, Durham, NH, 03824-2617, USA
| | - Mariama Ngom
- Laboratoire Mixte International Adaptation des Plantes et microorganismes associés aux Stress Environnementaux, Centre de Recherche de Bel-Air, Dakar, Sénégal.,Laboratoire Campus de Biotechnologies Végétales, Département de Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Sénégal.,Laboratoire Commun de Microbiologie Institut de Recherche pour le Développement/Institut Sénégalais de Recherches Agricoles/Université Cheikh Anta Diop, Centre de Recherche de Bel-Air, Dakar, Sénégal
| | - Feixia Chu
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, 46 College Rd, Durham, NH, 03824-2617, USA
| | - Samira Mansour
- Faculty of Science, Suez Canal University, Ismalia, Egypt
| | - Mame Ourèye Sy
- Laboratoire Mixte International Adaptation des Plantes et microorganismes associés aux Stress Environnementaux, Centre de Recherche de Bel-Air, Dakar, Sénégal.,Laboratoire Campus de Biotechnologies Végétales, Département de Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Sénégal
| | - Antony Champion
- Laboratoire Mixte International Adaptation des Plantes et microorganismes associés aux Stress Environnementaux, Centre de Recherche de Bel-Air, Dakar, Sénégal.,UMR DIADE, Institut de Recherche pour le Développement, Montpellier, France
| | - Louis S Tisa
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, 46 College Rd, Durham, NH, 03824-2617, USA.
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Pesce C, Swanson E, Simpson S, Morris K, Thomas WK, Tisa LS, Sellstedt A. Draft Genome Sequence of the Symbiotic Frankia Sp. Strain KB5 Isolated from Root Nodules of Casuarina equisetifolia. J Genomics 2017; 5:64-67. [PMID: 28698736 PMCID: PMC5504825 DOI: 10.7150/jgen.20887] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 05/29/2017] [Indexed: 01/27/2023] Open
Abstract
Frankia sp. strain KB5 was isolated from Casuarina equisetifolia and previous studies have shown both nitrogenase and uptake hydrogenase activities under free-living conditions. Here, we report 5.5-Mbp draft genome sequence with a G+C content of 70.03 %, 4,958 candidate protein-encoding genes, and 2 rRNA operons.
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Affiliation(s)
- Céline Pesce
- University of New Hampshire, Durham, New Hampshire, USA
| | - Erik Swanson
- University of New Hampshire, Durham, New Hampshire, USA
| | | | | | | | - Louis S Tisa
- University of New Hampshire, Durham, New Hampshire, USA
| | - Anita Sellstedt
- UPSC, Department of Plant physiology, Umeå University, S-90187 Umeå, Sweden
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