Age-dependent heteroblastic development of leaf hairs in Arabidopsis
© 2019 Zhejiang A&F University. New Phytologist © 2019 New Phytologist Trust.
| Veröffentlicht in: | The New phytologist. - 1984. - 224(2019), 2 vom: 18. Okt., Seite 741-748 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2019
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Arabidopsis thaliana GL1 AP2-like transcription factors miR156-SPLs trichome vegetative phase change Arabidopsis Proteins |
| Zusammenfassung: | © 2019 Zhejiang A&F University. New Phytologist © 2019 New Phytologist Trust. Higher plants progress through a juvenile and an adult phase of development before they enter the reproductive phase. The transition from the juvenile to the adult phase is referred to as vegetative phase change, and this is signified by the production of trichomes on the abaxial side of leaf blades in Arabidopsis; however, the molecular mechanism underlying this process is poorly understood. We identified a dominant mutation (gl1-D) in a forward genetic screen that accelerates abaxial trichome production during shoot development. This phenotype is the result of a G-to-A substitution in the 3' noncoding region in the GLABRA1(GL1) gene. We show that TOE1, an AP2-like transcription factor that acts downstream of the miR156-SPL pathway, represses GL1 expression by directly binding to this site, and that gl1-D prevents TOE1 binding. Our work reveals a molecular link between vegetative phase change and abaxial trichome production in Arabidopsis, and answers a long-standing question of how the vegetative phase change pathway regulates vegetative traits |
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| Beschreibung: | Date Completed 11.05.2020 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/nph.16054 |