Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase.
In plants, root system architecture is determined by the activity of root apical meristems, which control the root growth rate, and by the formation of lateral roots. In legumes, an additional root lateral organ can develop: the symbiotic nitrogen-fixing nodule. We identified in Medicago truncatula...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2014-12-01
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| Series: | PLoS Genetics |
| Online Access: | http://europepmc.org/articles/PMC4270686?pdf=render |
| _version_ | 1818217597731078144 |
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| author | Emeline Huault Carole Laffont Jiangqi Wen Kirankumar S Mysore Pascal Ratet Gérard Duc Florian Frugier |
| author_facet | Emeline Huault Carole Laffont Jiangqi Wen Kirankumar S Mysore Pascal Ratet Gérard Duc Florian Frugier |
| author_sort | Emeline Huault |
| collection | DOAJ |
| description | In plants, root system architecture is determined by the activity of root apical meristems, which control the root growth rate, and by the formation of lateral roots. In legumes, an additional root lateral organ can develop: the symbiotic nitrogen-fixing nodule. We identified in Medicago truncatula ten allelic mutants showing a compact root architecture phenotype (cra2) independent of any major shoot phenotype, and that consisted of shorter roots, an increased number of lateral roots, and a reduced number of nodules. The CRA2 gene encodes a Leucine-Rich Repeat Receptor-Like Kinase (LRR-RLK) that primarily negatively regulates lateral root formation and positively regulates symbiotic nodulation. Grafting experiments revealed that CRA2 acts through different pathways to regulate these lateral organs originating from the roots, locally controlling the lateral root development and nodule formation systemically from the shoots. The CRA2 LRR-RLK therefore integrates short- and long-distance regulations to control root system architecture under non-symbiotic and symbiotic conditions. |
| first_indexed | 2024-12-12T07:10:24Z |
| format | Article |
| id | doaj.art-b3c2164694fc42ac93a71371076f39d0 |
| institution | Directory Open Access Journal |
| issn | 1553-7390 1553-7404 |
| language | English |
| last_indexed | 2024-12-12T07:10:24Z |
| publishDate | 2014-12-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Genetics |
| spelling | doaj.art-b3c2164694fc42ac93a71371076f39d02022-12-22T00:33:38ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042014-12-011012e100489110.1371/journal.pgen.1004891Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase.Emeline HuaultCarole LaffontJiangqi WenKirankumar S MysorePascal RatetGérard DucFlorian FrugierIn plants, root system architecture is determined by the activity of root apical meristems, which control the root growth rate, and by the formation of lateral roots. In legumes, an additional root lateral organ can develop: the symbiotic nitrogen-fixing nodule. We identified in Medicago truncatula ten allelic mutants showing a compact root architecture phenotype (cra2) independent of any major shoot phenotype, and that consisted of shorter roots, an increased number of lateral roots, and a reduced number of nodules. The CRA2 gene encodes a Leucine-Rich Repeat Receptor-Like Kinase (LRR-RLK) that primarily negatively regulates lateral root formation and positively regulates symbiotic nodulation. Grafting experiments revealed that CRA2 acts through different pathways to regulate these lateral organs originating from the roots, locally controlling the lateral root development and nodule formation systemically from the shoots. The CRA2 LRR-RLK therefore integrates short- and long-distance regulations to control root system architecture under non-symbiotic and symbiotic conditions.http://europepmc.org/articles/PMC4270686?pdf=render |
| spellingShingle | Emeline Huault Carole Laffont Jiangqi Wen Kirankumar S Mysore Pascal Ratet Gérard Duc Florian Frugier Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. PLoS Genetics |
| title | Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. |
| title_full | Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. |
| title_fullStr | Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. |
| title_full_unstemmed | Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. |
| title_short | Local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor-like kinase. |
| title_sort | local and systemic regulation of plant root system architecture and symbiotic nodulation by a receptor like kinase |
| url | http://europepmc.org/articles/PMC4270686?pdf=render |
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