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Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions
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| Zeitschriftentitel: | Molecular Plant-Microbe Interactions® |
|---|---|
| Personen und Körperschaften: | , , , , , , , , , , , , , , , , , |
| In: | Molecular Plant-Microbe Interactions®, 17, 2004, 3, S. 292-303 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Scientific Societies
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| Schlagwörter: |
| author_facet |
Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques |
|---|---|
| author |
Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques |
| spellingShingle |
Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques Molecular Plant-Microbe Interactions® Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions Agronomy and Crop Science General Medicine Physiology |
| author_sort |
becker, anke |
| spelling |
Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques 0894-0282 1943-7706 Scientific Societies Agronomy and Crop Science General Medicine Physiology http://dx.doi.org/10.1094/mpmi.2004.17.3.292 <jats:p> Sinorhizobium meliloti is an α-proteobacterium that alternates between a free-living phase in bulk soil or in the rhizosphere of plants and a symbiotic phase within the host plant cells, where the bacteria ultimately differentiate into nitrogen-fixing organelle-like cells, called bacteroids. As a step toward understanding the physiology of S. meliloti in its free-living and symbiotic forms and the transition between the two, gene expression profiles were determined under two sets of biological conditions: growth under oxic versus microoxic conditions, and in free-living versus symbiotic state. Data acquisition was based on both macro- and microarrays. Transcriptome profiles highlighted a profound modification of gene expression during bacteroid differentiation, with 16% of genes being altered. The data are consistent with an overall slow down of bacteroid metabolism during adaptation to symbiotic life and acquisition of nitrogen fixation capability. A large number of genes of unknown function, including potential regulators, that may play a role in symbiosis were identified. Transcriptome profiling in response to oxygen limitation indicated that up to 5% of the genes were oxygen regulated. However, the microoxic and bacteroid transcriptomes only partially overlap, implying that oxygen contributes to a limited extent to the control of symbiotic gene expression. </jats:p> Global Changes in Gene Expression in <i>Sinorhizobium meliloti</i> 1021 under Microoxic and Symbiotic Conditions Molecular Plant-Microbe Interactions® |
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| title |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_unstemmed |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_full |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_fullStr |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_full_unstemmed |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_short |
Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_sort |
global changes in gene expression in <i>sinorhizobium meliloti</i> 1021 under microoxic and symbiotic conditions |
| topic |
Agronomy and Crop Science General Medicine Physiology |
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http://dx.doi.org/10.1094/mpmi.2004.17.3.292 |
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2004 |
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292-303 |
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<jats:p> Sinorhizobium meliloti is an α-proteobacterium that alternates between a free-living phase in bulk soil or in the rhizosphere of plants and a symbiotic phase within the host plant cells, where the bacteria ultimately differentiate into nitrogen-fixing organelle-like cells, called bacteroids. As a step toward understanding the physiology of S. meliloti in its free-living and symbiotic forms and the transition between the two, gene expression profiles were determined under two sets of biological conditions: growth under oxic versus microoxic conditions, and in free-living versus symbiotic state. Data acquisition was based on both macro- and microarrays. Transcriptome profiles highlighted a profound modification of gene expression during bacteroid differentiation, with 16% of genes being altered. The data are consistent with an overall slow down of bacteroid metabolism during adaptation to symbiotic life and acquisition of nitrogen fixation capability. A large number of genes of unknown function, including potential regulators, that may play a role in symbiosis were identified. Transcriptome profiling in response to oxygen limitation indicated that up to 5% of the genes were oxygen regulated. However, the microoxic and bacteroid transcriptomes only partially overlap, implying that oxygen contributes to a limited extent to the control of symbiotic gene expression. </jats:p> |
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| author | Becker, Anke, Bergès, Hélène, Krol, Elizaveta, Bruand, Claude, Rüberg, Silvia, Capela, Delphine, Lauber, Emmanuelle, Meilhoc, Eliane, Ampe, Frédéric, de Bruijn, Frans J., Fourment, Joëlle, Francez-Charlot, Anne, Kahn, Daniel, Küster, Helge, Liebe, Carine, Pühler, Alfred, Weidner, Stefan, Batut, Jacques |
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| description | <jats:p> Sinorhizobium meliloti is an α-proteobacterium that alternates between a free-living phase in bulk soil or in the rhizosphere of plants and a symbiotic phase within the host plant cells, where the bacteria ultimately differentiate into nitrogen-fixing organelle-like cells, called bacteroids. As a step toward understanding the physiology of S. meliloti in its free-living and symbiotic forms and the transition between the two, gene expression profiles were determined under two sets of biological conditions: growth under oxic versus microoxic conditions, and in free-living versus symbiotic state. Data acquisition was based on both macro- and microarrays. Transcriptome profiles highlighted a profound modification of gene expression during bacteroid differentiation, with 16% of genes being altered. The data are consistent with an overall slow down of bacteroid metabolism during adaptation to symbiotic life and acquisition of nitrogen fixation capability. A large number of genes of unknown function, including potential regulators, that may play a role in symbiosis were identified. Transcriptome profiling in response to oxygen limitation indicated that up to 5% of the genes were oxygen regulated. However, the microoxic and bacteroid transcriptomes only partially overlap, implying that oxygen contributes to a limited extent to the control of symbiotic gene expression. </jats:p> |
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| spelling | Becker, Anke Bergès, Hélène Krol, Elizaveta Bruand, Claude Rüberg, Silvia Capela, Delphine Lauber, Emmanuelle Meilhoc, Eliane Ampe, Frédéric de Bruijn, Frans J. Fourment, Joëlle Francez-Charlot, Anne Kahn, Daniel Küster, Helge Liebe, Carine Pühler, Alfred Weidner, Stefan Batut, Jacques 0894-0282 1943-7706 Scientific Societies Agronomy and Crop Science General Medicine Physiology http://dx.doi.org/10.1094/mpmi.2004.17.3.292 <jats:p> Sinorhizobium meliloti is an α-proteobacterium that alternates between a free-living phase in bulk soil or in the rhizosphere of plants and a symbiotic phase within the host plant cells, where the bacteria ultimately differentiate into nitrogen-fixing organelle-like cells, called bacteroids. As a step toward understanding the physiology of S. meliloti in its free-living and symbiotic forms and the transition between the two, gene expression profiles were determined under two sets of biological conditions: growth under oxic versus microoxic conditions, and in free-living versus symbiotic state. Data acquisition was based on both macro- and microarrays. Transcriptome profiles highlighted a profound modification of gene expression during bacteroid differentiation, with 16% of genes being altered. The data are consistent with an overall slow down of bacteroid metabolism during adaptation to symbiotic life and acquisition of nitrogen fixation capability. A large number of genes of unknown function, including potential regulators, that may play a role in symbiosis were identified. Transcriptome profiling in response to oxygen limitation indicated that up to 5% of the genes were oxygen regulated. However, the microoxic and bacteroid transcriptomes only partially overlap, implying that oxygen contributes to a limited extent to the control of symbiotic gene expression. </jats:p> Global Changes in Gene Expression in <i>Sinorhizobium meliloti</i> 1021 under Microoxic and Symbiotic Conditions Molecular Plant-Microbe Interactions® |
| spellingShingle | Becker, Anke, Bergès, Hélène, Krol, Elizaveta, Bruand, Claude, Rüberg, Silvia, Capela, Delphine, Lauber, Emmanuelle, Meilhoc, Eliane, Ampe, Frédéric, de Bruijn, Frans J., Fourment, Joëlle, Francez-Charlot, Anne, Kahn, Daniel, Küster, Helge, Liebe, Carine, Pühler, Alfred, Weidner, Stefan, Batut, Jacques, Molecular Plant-Microbe Interactions®, Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions, Agronomy and Crop Science, General Medicine, Physiology |
| title | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_full | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_fullStr | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_full_unstemmed | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_short | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| title_sort | global changes in gene expression in <i>sinorhizobium meliloti</i> 1021 under microoxic and symbiotic conditions |
| title_unstemmed | Global Changes in Gene Expression in Sinorhizobium meliloti 1021 under Microoxic and Symbiotic Conditions |
| topic | Agronomy and Crop Science, General Medicine, Physiology |
| url | http://dx.doi.org/10.1094/mpmi.2004.17.3.292 |