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Ethylene signaling ...
Ethylene signaling induces gelatinous layers with typical features of tension wood in hybrid aspen
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- Lundberg-Felten, Judith (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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Vahala, Jorma (author)
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- Love, Jonathan (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Gorzsás, András (author)
- Umeå universitet,Kemiska institutionen,Umeå University
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Ruggeberg, Markus (author)
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- Delhomme, Nicolas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Lesniewska, Joanna (author)
- University of Białystok
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Kangasjarvi, Jaakko (author)
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- Hvidsten, Torgeir R., 1975- (author)
- Umeå universitet,Umeå Plant Science Centre (UPSC),Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences,Ås, Norway
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- Mellerowicz, Ewa (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Sundberg, Björn (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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(creator_code:org_t)
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- 2018-03-12
- 2018
- English.
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In: New Phytologist. - : Wiley. - 0028-646X .- 1469-8137. ; 218:3, s. 999-1014
- Related links:
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https://urn.kb.se/re...
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Abstract
Subject headings
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- 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 tremulaxtremuloides) 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.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
- NATURVETENSKAP -- Biologi -- Cellbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Cell Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Keyword
- cell wall
- ethylene signaling
- gelatinous layer (G-layer)
- hybrid aspen
- tension wood
- transcriptome
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Lundberg-Felten, ...
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Vahala, Jorma
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Love, Jonathan
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Gorzsás, András
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Ruggeberg, Marku ...
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Delhomme, Nicola ...
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show more...
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Lesniewska, Joan ...
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Kangasjarvi, Jaa ...
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Hvidsten, Torgei ...
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Mellerowicz, Ewa
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Sundberg, Björn
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Botany
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Cell Biology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Biochemistry and ...
- Articles in the publication
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New Phytologist
- By the university
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Umeå University
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Swedish University of Agricultural Sciences