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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/nph.13152
|2 doi
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|a pubmed25n0811.xml
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|a (NLM)25388807
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Mizrachi, Eshchar
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Investigating the molecular underpinnings underlying morphology and changes in carbon partitioning during tension wood formation in Eucalyptus
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|c 2015
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 01.02.2016
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|a Date Revised 21.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2014 University of Pretoria New Phytologist © 2014 New Phytologist Trust.
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|a Tension wood has distinct physical and chemical properties, including altered fibre properties, cell wall composition and ultrastructure. It serves as a good system for investigating the genetic regulation of secondary cell wall biosynthesis and wood formation. The reference genome sequence for Eucalyptus grandis allows investigation of the global transcriptional reprogramming that accompanies tension wood formation in this global wood fibre crop. We report the first comprehensive analysis of physicochemical wood property changes in tension wood of Eucalyptus measured in a hybrid (E. grandis × Eucalyptus urophylla) clone, as well as genome-wide gene expression changes in xylem tissues 3 wk post-induction using RNA sequencing. We found that Eucalyptus tension wood in field-grown trees is characterized by an increase in cellulose, a reduction in lignin, xylose and mannose, and a marked increase in galactose. Gene expression profiling in tension wood-forming tissue showed corresponding down-regulation of monolignol biosynthetic genes, and differential expression of several carbohydrate active enzymes. We conclude that alterations of cell wall traits induced by tension wood formation in Eucalyptus are a consequence of a combination of down-regulation of lignin biosynthesis and hemicellulose remodelling, rather than the often proposed up-regulation of the cellulose biosynthetic pathway
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Eucalyptus
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|a RNA-seq
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|a cellulose
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| 650 |
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|a hemicellulose
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| 650 |
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|a lignin
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| 650 |
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|a tension wood
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|a transcriptome
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|a xylan
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|a Carbohydrates
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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| 650 |
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|a Cellulose
|2 NLM
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| 650 |
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|a 9004-34-6
|2 NLM
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| 650 |
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|a Lignin
|2 NLM
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| 650 |
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|a 9005-53-2
|2 NLM
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| 700 |
1 |
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|a Maloney, Victoria J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Silberbauer, Janine
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hefer, Charles A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Berger, Dave K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mansfield, Shawn D
|e verfasserin
|4 aut
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| 700 |
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|a Myburg, Alexander A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1990
|g 206(2015), 4 vom: 12. Juni, Seite 1351-63
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:206
|g year:2015
|g number:4
|g day:12
|g month:06
|g pages:1351-63
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| 856 |
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|u http://dx.doi.org/10.1111/nph.13152
|3 Volltext
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