Auxin is required for the long coleoptile trait in japonica rice under submergence

© 2020 The Authors New Phytologist © 2020 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 229(2021), 1 vom: 15. Jan., Seite 85-93
1. Verfasser: Nghi, Khac Nhu (VerfasserIn)
Weitere Verfasser: Tagliani, Andrea, Mariotti, Lorenzo, Weits, Daan A, Perata, Pierdomenico, Pucciariello, Chiara
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Oryza sativa auxin coleoptile hypoxia rice submergence Indoleacetic Acids
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520 |a Rice coleoptile elongation under submergence guarantees fast seedling establishment in the field. We investigated the role of auxin in influencing the capacity of rice to produce a long coleoptile under water. In order to explore the complexity of auxin's role in coleoptile elongation, we used gene expression analysis, confocal microscopy of an auxin-responsive fluorescent reporter, gas chromatography coupled to tandem mass spectrometry (GC-MS/MS), and T-DNA insertional mutants of an auxin transport protein. We show that a higher auxin availability in the coleoptile correlates with the final coleoptile length under submergence. We also identified the auxin influx carrier AUX1 as a component influencing this trait under submergence. The coleoptile tip is involved in the final length of rice varieties harbouring a long coleoptile. Our experimental results indicate that auxin biosynthesis and transport underlies the differential elongation between short and long coleoptile-harbouring japonica rice varieties 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Oryza sativa 
650 4 |a auxin 
650 4 |a coleoptile 
650 4 |a hypoxia 
650 4 |a rice 
650 4 |a submergence 
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700 1 |a Tagliani, Andrea  |e verfasserin  |4 aut 
700 1 |a Mariotti, Lorenzo  |e verfasserin  |4 aut 
700 1 |a Weits, Daan A  |e verfasserin  |4 aut 
700 1 |a Perata, Pierdomenico  |e verfasserin  |4 aut 
700 1 |a Pucciariello, Chiara  |e verfasserin  |4 aut 
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