Ethylene signaling induces gelatinous layers with typical features of tension wood in hybrid aspen

Ethylene signaling induces gelatinous layers with typical features of tension wood in hybrid aspen

© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 218(2018), 3 vom: 01. Mai, Seite 999-1014
1. Verfasser: Felten, Judith (VerfasserIn)
Weitere Verfasser: Vahala, Jorma, Love, Jonathan, Gorzsás, András, Rüggeberg, Markus, Delhomme, Nicolas, Leśniewska, Joanna, Kangasjärvi, Jaakko, Hvidsten, Torgeir R, Mellerowicz, Ewa J, Sundberg, Björn
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't cell wall ethylene signaling gelatinous layer (G-layer) hybrid aspen tension wood transcriptome Amino Acids, Cyclic Ethylenes mehr... Water 059QF0KO0R 1-aminocyclopropane-1-carboxylic acid 3K9EJ633GL Cellulose 9004-34-6 ethylene 91GW059KN7
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520 |a The phytohormone ethylene impacts secondary stem growth in plants by stimulating cambial activity, xylem development and fiber over vessel formation. We report the effect of ethylene on secondary cell wall formation and the molecular connection between ethylene signaling and wood formation. We applied exogenous ethylene or its precursor 1-aminocyclopropane-1-carboxylic acid (ACC) to wild-type and ethylene-insensitive hybrid aspen trees (Populus tremula × tremuloides) and studied secondary cell wall anatomy, chemistry and ultrastructure. We furthermore analyzed the transcriptome (RNA Seq) after ACC application to wild-type and ethylene-insensitive trees. We demonstrate that ACC and ethylene induce gelatinous layers (G-layers) and alter the fiber cell wall cellulose microfibril angle. G-layers are tertiary wall layers rich in cellulose, typically found in tension wood of aspen trees. A vast majority of transcripts affected by ACC are downstream of ethylene perception and include a large number of transcription factors (TFs). Motif-analyses reveal potential connections between ethylene TFs (Ethylene Response Factors (ERFs), ETHYLENE INSENSITIVE 3/ETHYLENE INSENSITIVE3-LIKE1 (EIN3/EIL1)) and wood formation. G-layer formation upon ethylene application suggests that the increase in ethylene biosynthesis observed during tension wood formation is important for its formation. Ethylene-regulated TFs of the ERF and EIN3/EIL1 type could transmit the ethylene signal 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a cell wall 
650 4 |a ethylene signaling 
650 4 |a gelatinous layer (G-layer) 
650 4 |a hybrid aspen 
650 4 |a tension wood 
650 4 |a transcriptome 
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700 1 |a Vahala, Jorma  |e verfasserin  |4 aut 
700 1 |a Love, Jonathan  |e verfasserin  |4 aut 
700 1 |a Gorzsás, András  |e verfasserin  |4 aut 
700 1 |a Rüggeberg, Markus  |e verfasserin  |4 aut 
700 1 |a Delhomme, Nicolas  |e verfasserin  |4 aut 
700 1 |a Leśniewska, Joanna  |e verfasserin  |4 aut 
700 1 |a Kangasjärvi, Jaakko  |e verfasserin  |4 aut 
700 1 |a Hvidsten, Torgeir R  |e verfasserin  |4 aut 
700 1 |a Mellerowicz, Ewa J  |e verfasserin  |4 aut 
700 1 |a Sundberg, Björn  |e verfasserin  |4 aut 
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