|
1
|
Penttinen P, Greco D, Muntyan V, Terefework Z, De Lajudie P, Roumiantseva M, Becker A, Auvinen P, Lindström K. Divergent genes in potential inoculant Sinorhizobium strains are related to DNA replication, recombination, and repair. J Basic Microbiol 2016; 56:680-5. [PMID: 26879331 DOI: 10.1002/jobm.201500592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/17/2016] [Indexed: 11/07/2022]
Abstract
To serve as inoculants of legumes, nitrogen-fixing rhizobium strains should be competitive and tolerant of diverse environments. We hybridized the genomes of symbiotically efficient and salt tolerant Sinorhizobium inoculant strains onto the Sinorhizobium meliloti Rm1021 microarray. The number of variable genes, that is, divergent or putatively multiplied genes, ranged from 503 to 1556 for S. meliloti AK23, S. meliloti STM 1064 and S. arboris HAMBI 1552. The numbers of divergent genes affiliated with the symbiosis plasmid pSymA and related to DNA replication, recombination and repair were significantly higher than expected. The variation was mainly in the accessory genome, implying that it was important in shaping the adaptability of the strains.
Collapse
Affiliation(s)
- Petri Penttinen
- Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland.,Department of Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Dario Greco
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland.,Unit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Victoria Muntyan
- All-Russian Research Institute for Agricultural Microbiology, Saint-Petersburg-Pushkin, Russia
| | - Zewdu Terefework
- Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland.,MRC-ET Molecular Diagnostics, Addis Ababa, Ethiopia
| | - Philippe De Lajudie
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes, UMR LSTM, Montpellier, France
| | - Marina Roumiantseva
- All-Russian Research Institute for Agricultural Microbiology, Saint-Petersburg-Pushkin, Russia
| | - Anke Becker
- LOEWE Center for Synthetic Microbiology and Department of Biology, Philipps-Universität Marburg, Marburg, Germany
| | - Petri Auvinen
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Kristina Lindström
- Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland.,Department of Environmental Sciences, University of Helsinki, Helsinki, Finland
| |
Collapse
|
|
2
|
Penttinen P, Räsänen LA, Lortet G, Lindström K. Stable isotope labelling reveals that NaCl stress decreases the production ofEnsifer(Sinorhizobium)arborislipochitooligosaccharide signalling molecules. FEMS Microbiol Lett 2013; 349:117-26. [DOI: 10.1111/1574-6968.12303] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/13/2013] [Accepted: 10/14/2013] [Indexed: 11/29/2022] Open
Affiliation(s)
- Petri Penttinen
- Department of Food and Environmental Sciences; University of Helsinki; Helsinki Finland
| | - Leena A. Räsänen
- Department of Food and Environmental Sciences; University of Helsinki; Helsinki Finland
| | - Gilles Lortet
- Department of Food and Environmental Sciences; University of Helsinki; Helsinki Finland
| | - Kristina Lindström
- Department of Food and Environmental Sciences; University of Helsinki; Helsinki Finland
| |
Collapse
|