Björn Sundberg
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View article: Field testing of transgenic aspen from large greenhouse screening identifies unexpected winners
Field testing of transgenic aspen from large greenhouse screening identifies unexpected winners Open
Summary Trees constitute promising renewable feedstocks for biorefinery using biochemical conversion, but their recalcitrance restricts their attractiveness for the industry. To obtain trees with reduced recalcitrance, large‐scale genetic …
View article: A metabolite roadmap of the wood‐forming tissue in <i>Populus tremula</i>
A metabolite roadmap of the wood‐forming tissue in <i>Populus tremula</i> Open
Summary Wood, or secondary xylem, is the product of xylogenesis, a developmental process that begins with the proliferation of cambial derivatives and ends with mature xylem fibers and vessels with lignified secondary cell walls. Fully mat…
View article: Arabidopsis <i>XTH4</i> and <i>XTH9</i> Contribute to Wood Cell Expansion and Secondary Wall Formation
Arabidopsis <i>XTH4</i> and <i>XTH9</i> Contribute to Wood Cell Expansion and Secondary Wall Formation Open
Xyloglucan is the major hemicellulose of dicotyledon primary cell walls, affecting the load-bearing framework with the participation of xyloglucan endo-transglycosylase/hydrolases (XTHs). We used loss- and gain-of function approaches to st…
View article: Arabidopsis<i>XTH4</i>and<i>XTH9</i>contribute to wood cell expansion and secondary wall formation
Arabidopsis<i>XTH4</i>and<i>XTH9</i>contribute to wood cell expansion and secondary wall formation Open
In dicotyledons, xyloglucan is the major hemicellulose of primary walls affecting the load-bearing framework with participation of XTH enzymes. We used loss- and gain-of function approaches to study functions of abundant cambial region exp…
View article: Ethylene Signaling Is Required for Fully Functional Tension Wood in Hybrid Aspen
Ethylene Signaling Is Required for Fully Functional Tension Wood in Hybrid Aspen Open
Tension wood (TW) in hybrid aspen trees forms on the upper side of displaced stems to generate a strain that leads to uplifting of the stem. TW is characterized by increased cambial growth, reduced vessel frequency and diameter, and the pr…
View article: Cellulose Synthase Stoichiometry in Aspen Differs from Arabidopsis and Norway Spruce
Cellulose Synthase Stoichiometry in Aspen Differs from Arabidopsis and Norway Spruce Open
Cellulose is synthesized at the plasma membrane by cellulose synthase complexes (CSCs) containing cellulose synthases (CESAs). Genetic analysis and CESA isoform quantification indicate that cellulose in the secondary cell walls of Arabidop…
View article: Ethylene-Related Gene Expression Networks in Wood Formation
Ethylene-Related Gene Expression Networks in Wood Formation Open
Thickening of tree stems is the result of secondary growth, accomplished by the meristematic activity of the vascular cambium. Secondary growth of the stem entails developmental cascades resulting in the formation of secondary phloem outwa…
View article: 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 Open
Summary 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 molecul…
View article: 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 Open
Summary Research conducted The phytohormone ethylene impacts secondary stem growth in plants by stimulating cambial activity, xylem development and fiber over vessel formation. Here we report the effect of ethylene on secondary cell wall f…
View article: Evaluating the accuracy of genomic prediction of growth and wood traits in two Eucalyptus species and their F1 hybrids
Evaluating the accuracy of genomic prediction of growth and wood traits in two Eucalyptus species and their F1 hybrids Open
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View article: AspWood: High-Spatial-Resolution Transcriptome Profiles Reveal Uncharacterized Modularity of Wood Formation in <i>Populus tremula</i>
AspWood: High-Spatial-Resolution Transcriptome Profiles Reveal Uncharacterized Modularity of Wood Formation in <i>Populus tremula</i> Open
Trees represent the largest terrestrial carbon sink and a renewable source of ligno-cellulose. There is significant scope for yield and quality improvement in these largely undomesticated species, and efforts to engineer elite varieties wi…
View article: Protein expression in tension wood formation monitored at high tissue resolution in Populus
Protein expression in tension wood formation monitored at high tissue resolution in Populus Open
Tension wood (TW) is a specialized tissue with contractile properties that is formed by the vascular cambium in response to gravitational stimuli. We quantitatively analysed the proteomes of Populus tremula cambium and its xylem cell deriv…
View article: Defense Responses in Aspen with Altered Pectin Methylesterase Activity Reveal the Hormonal Inducers of Tyloses
Defense Responses in Aspen with Altered Pectin Methylesterase Activity Reveal the Hormonal Inducers of Tyloses Open
Tyloses are ingrowths of parenchyma cells into the lumen of embolized xylem vessels, thereby protecting the remaining xylem from pathogens. They are found in heartwood, sapwood, and in abscission zones and can be induced by various stresse…
View article: Evaluating the accuracy of genomic prediction of growth and wood traits in two<i>Eucalyptus</i>species and their F<sub>1</sub>hybrids
Evaluating the accuracy of genomic prediction of growth and wood traits in two<i>Eucalyptus</i>species and their F<sub>1</sub>hybrids Open
Background Genomic prediction is a genomics assisted breeding methodology that can increase genetic gains by accelerating the breeding cycle and potentially improving the accuracy of breeding values. In this study, we used 41,304 informati…