Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice
Phytohormones are well‐known regulators of the symbiotic Rhizobium–legume association in the plant host. The enod40 nodulin gene is associated with the earliest phases of the nodule organogenesis programme in the legume host and modifying its expression resulted in perturbations of nodule developmen...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2004
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/166814 |
| _version_ | 1855516746310483968 |
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| author | Dey, Moul Complainville, Arnaud Charon, Celine Torrizo, Lina Kondorosi, Adam Crespi, Martin Datta, Swapan |
| author_browse | Charon, Celine Complainville, Arnaud Crespi, Martin Datta, Swapan Dey, Moul Kondorosi, Adam Torrizo, Lina |
| author_facet | Dey, Moul Complainville, Arnaud Charon, Celine Torrizo, Lina Kondorosi, Adam Crespi, Martin Datta, Swapan |
| author_sort | Dey, Moul |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Phytohormones are well‐known regulators of the symbiotic Rhizobium–legume association in the plant host. The enod40 nodulin gene is associated with the earliest phases of the nodule organogenesis programme in the legume host and modifying its expression resulted in perturbations of nodule development in Medicago truncatula. Therefore in our pursuit to mimic the initial signal transduction steps of legume nodulation in the alien physiological set‐up of a rice plant, we have expressed the Mtenod40 gene in rice. Molecular data confirm the stable integration, inheritance and transcription of the foreign gene in this non‐legume. We have compared the phytohormonal responses of Mtenod40‐overexpressing and control plants in a homologous legume background (M. truncatula) and in the non‐legume rice. An enod40‐mediated root growth response, induced by inhibition of ethylene biosynthesis, was observed in both plants. On the other hand, a significant differential effect of cytokinins was observed only in rice plants. This suggests that ethylene inhibits enod40 action both in legumes and non‐legumes and reinforces that some of the early signal transduction steps of the nodule developmental programme may function in rice. |
| format | Journal Article |
| id | CGSpace166814 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2004 |
| publishDateRange | 2004 |
| publishDateSort | 2004 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1668142024-12-19T14:11:58Z Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice Dey, Moul Complainville, Arnaud Charon, Celine Torrizo, Lina Kondorosi, Adam Crespi, Martin Datta, Swapan nodulins genes gene expression growth regulators transgenics hygromycin b promoters cytokinins acc avg ethylene inhibition transgenic rice Phytohormones are well‐known regulators of the symbiotic Rhizobium–legume association in the plant host. The enod40 nodulin gene is associated with the earliest phases of the nodule organogenesis programme in the legume host and modifying its expression resulted in perturbations of nodule development in Medicago truncatula. Therefore in our pursuit to mimic the initial signal transduction steps of legume nodulation in the alien physiological set‐up of a rice plant, we have expressed the Mtenod40 gene in rice. Molecular data confirm the stable integration, inheritance and transcription of the foreign gene in this non‐legume. We have compared the phytohormonal responses of Mtenod40‐overexpressing and control plants in a homologous legume background (M. truncatula) and in the non‐legume rice. An enod40‐mediated root growth response, induced by inhibition of ethylene biosynthesis, was observed in both plants. On the other hand, a significant differential effect of cytokinins was observed only in rice plants. This suggests that ethylene inhibits enod40 action both in legumes and non‐legumes and reinforces that some of the early signal transduction steps of the nodule developmental programme may function in rice. 2004-01 2024-12-19T12:56:42Z 2024-12-19T12:56:42Z Journal Article https://hdl.handle.net/10568/166814 en Wiley Dey, Moul; Complainville, Arnaud; Charon, Celine; Torrizo, Lina; Kondorosi, Adam; Crespi, Martin and Datta, Swapan. 2004. Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice. Physiologia Plantarum, Volume 120 no. 1 p. 132-139 |
| spellingShingle | nodulins genes gene expression growth regulators transgenics hygromycin b promoters cytokinins acc avg ethylene inhibition transgenic rice Dey, Moul Complainville, Arnaud Charon, Celine Torrizo, Lina Kondorosi, Adam Crespi, Martin Datta, Swapan Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title | Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title_full | Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title_fullStr | Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title_full_unstemmed | Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title_short | Phytohormonal responses in enod40-overexpressing plants of Medicago truncatula and rice |
| title_sort | phytohormonal responses in enod40 overexpressing plants of medicago truncatula and rice |
| topic | nodulins genes gene expression growth regulators transgenics hygromycin b promoters cytokinins acc avg ethylene inhibition transgenic rice |
| url | https://hdl.handle.net/10568/166814 |
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