A micro RNA mediates shoot control of root branching
Abstract Plants extract mineral nutrients from the soil, or from interactions with mutualistic soil microbes via their root systems. Adapting root architecture to nutrient availability enables efficient resource utilization, particularly in patchy and dynamic environments. Root growth responses to s...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-43738-6 |
| _version_ | 1797397870633025536 |
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| author | Moritz Sexauer Hemal Bhasin Maria Schön Elena Roitsch Caroline Wall Ulrike Herzog Katharina Markmann |
| author_facet | Moritz Sexauer Hemal Bhasin Maria Schön Elena Roitsch Caroline Wall Ulrike Herzog Katharina Markmann |
| author_sort | Moritz Sexauer |
| collection | DOAJ |
| description | Abstract Plants extract mineral nutrients from the soil, or from interactions with mutualistic soil microbes via their root systems. Adapting root architecture to nutrient availability enables efficient resource utilization, particularly in patchy and dynamic environments. Root growth responses to soil nitrogen levels are shoot-mediated, but the identity of shoot-derived mobile signals regulating root growth responses has remained enigmatic. Here we show that a shoot-derived micro RNA, miR2111, systemically steers lateral root initiation and nitrogen responsiveness through its root target TML (TOO MUCH LOVE) in the legume Lotus japonicus, where miR2111 and TML were previously shown to regulate symbiotic infections with nitrogen fixing bacteria. Intriguingly, systemic control of lateral root initiation by miR2111 and TML/HOLT (HOMOLOGUE OF LEGUME TML) was conserved in the nonsymbiotic ruderal Arabidopsis thaliana, which follows a distinct ecological strategy. Thus, the miR2111-TML/HOLT regulon emerges as an essential, conserved factor in adaptive shoot control of root architecture in dicots. |
| first_indexed | 2024-03-09T01:17:29Z |
| format | Article |
| id | doaj.art-4ccbb4cf6c684380979a830c0964aab7 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-09T01:17:29Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-4ccbb4cf6c684380979a830c0964aab72023-12-10T12:23:16ZengNature PortfolioNature Communications2041-17232023-12-011411910.1038/s41467-023-43738-6A micro RNA mediates shoot control of root branchingMoritz Sexauer0Hemal Bhasin1Maria Schön2Elena Roitsch3Caroline Wall4Ulrike Herzog5Katharina Markmann6Eberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsEberhard-Karls-University, Centre for Molecular Biology of PlantsAbstract Plants extract mineral nutrients from the soil, or from interactions with mutualistic soil microbes via their root systems. Adapting root architecture to nutrient availability enables efficient resource utilization, particularly in patchy and dynamic environments. Root growth responses to soil nitrogen levels are shoot-mediated, but the identity of shoot-derived mobile signals regulating root growth responses has remained enigmatic. Here we show that a shoot-derived micro RNA, miR2111, systemically steers lateral root initiation and nitrogen responsiveness through its root target TML (TOO MUCH LOVE) in the legume Lotus japonicus, where miR2111 and TML were previously shown to regulate symbiotic infections with nitrogen fixing bacteria. Intriguingly, systemic control of lateral root initiation by miR2111 and TML/HOLT (HOMOLOGUE OF LEGUME TML) was conserved in the nonsymbiotic ruderal Arabidopsis thaliana, which follows a distinct ecological strategy. Thus, the miR2111-TML/HOLT regulon emerges as an essential, conserved factor in adaptive shoot control of root architecture in dicots.https://doi.org/10.1038/s41467-023-43738-6 |
| spellingShingle | Moritz Sexauer Hemal Bhasin Maria Schön Elena Roitsch Caroline Wall Ulrike Herzog Katharina Markmann A micro RNA mediates shoot control of root branching Nature Communications |
| title | A micro RNA mediates shoot control of root branching |
| title_full | A micro RNA mediates shoot control of root branching |
| title_fullStr | A micro RNA mediates shoot control of root branching |
| title_full_unstemmed | A micro RNA mediates shoot control of root branching |
| title_short | A micro RNA mediates shoot control of root branching |
| title_sort | micro rna mediates shoot control of root branching |
| url | https://doi.org/10.1038/s41467-023-43738-6 |
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