A5008813739- Plant Stress Responses and Tolerance
- Plant Molecular Biology Research
- Polysaccharides and Plant Cell Walls
- Plant Reproductive Biology
- Genomics, phytochemicals, and oxidative stress
- Biofuel production and bioconversion
- Agronomic Practices and Intercropping Systems
- Food composition and properties
- Photosynthetic Processes and Mechanisms
- Plant Surface Properties and Treatments
- Plant-Microbe Interactions and Immunity
- Lignin and Wood Chemistry
- Plant Growth and Agriculture Techniques
- Plant Gene Expression Analysis
- Postharvest Quality and Shelf Life Management
- Cassava research and cyanide
- Tree Root and Stability Studies
- Nitrogen and Sulfur Effects on Brassica
Swedish University of Agricultural Sciences
2020-2025
Umeå Plant Science Centre
2020-2024
Norwegian University of Science and Technology
2017-2018
Summary Wood of broad‐leaf tree species is a valued source renewable biomass for biorefinery and target genetic improvement efforts to reduce its recalcitrance. Glucuronoxylan (GX) plays key role in recalcitrance through interactions with cellulose lignin. To recalcitrance, we modified wood GX by expressing GH10 GH11 endoxylanases from Aspergillus nidulans hybrid aspen ( Populus tremula L. × tremuloides Michx.) targeting the enzymes cell wall. The xylanases reduced height, cambial activity...
Xylem cells are surrounded by primary and secondary cell walls. Formation of walls is regulated the wall integrity surveyance system, but it unclear if deposition similarly regulated. To study this question, we introduced to aspen three different enzymes cleaving wall-localized xylan suppressed synthase components either ubiquitously or specifically during formation. When was altered, 95% lines showed reduced growth, whereas when altered deposition, 30% grew better with rest having no growth...
The Calcium-Dependent Protein Kinase (CDPK)-Related family (CRKs) consists of eight members in Arabidopsis. Recently, AtCRK5 was shown to play a direct role the regulation root gravitropic response involving polar auxin transport (PAT). However, limited information is available about function other AtCRK genes. Here, we report comparative analysis Arabidopsis CRK genes, including transcription regulation, intracellular localization, and biological function. transcripts were detectable all...
Isothiocyanates (ITCs), the biologically important glucosinolate breakdown products, can present health-promoting effects, play an role in plant defense and affect cellular mechanisms. Here, we evaluated biological effects of ITCs on Arabidopsis thaliana by assessing growth parameters after long-term exposure to low concentrations aliphatic aromatic ITCs, ranging from 1 1000 µM. Treatment with allylisothiocyanate (allyl-ITC) led a significant reduction root length fresh weight dose-dependent...
Drought is a major factor affecting crops, thus efforts are needed to increase plant resilience this abiotic stress. The overlapping signaling pathways between drought and cell wall integrity maintenance responses create possibility of increasing resistance by modifying walls. Here, using herbaceous woody model species, Arabidopsis hybrid aspen, respectively, we investigated how the xylan in secondary walls affects plants Plants, which was reduced expressing fungal GH10 GH11 xylanases or...
Plants within the Brassicales order generate glucosinolate hydrolysis products that can exert different biological effects on several organisms. Here, we evaluated physiological of one these compounds, benzyl cyanide (phenylacetonitrile), when exogenously applied Arabidopsis thaliana. Treatment with led to a dose-dependent reduction primary root length and total biomass. Further morphological changes like elongated hypocotyls, epinastic cotyledons, increased formation adventitious roots...
Summary Wood is the most important repository of assimilated carbon in biosphere, form large polymers (cellulose, hemicelluloses including glucuronoxylan, and lignin) that interactively a composite, together with soluble extractives phenolic aliphatic compounds. Molecular interactions among these compounds are not fully understood. We have targeted expression fungal α‐glucuronidase to wood cell wall aspen ( Populus tremula L. × tremuloides Michx.) Arabidopsis thaliana (L.) Heynh), decrease...
Stem bending in trees induces flexure wood but its properties and development are poorly understood. Here, we investigated the effects of low-intensity multidirectional stem flexing on growth hybrid aspen, transcriptomic hormonal responses. Glasshouse-grown were either kept stationary or subjected to several daily shakes for 5 wk, after which transcriptomes hormones analyzed cambial region developing tissues, by physical, chemical microscopy techniques. Shaking increased primary secondary...
Abstract Upon tissue damage the plant secondary metabolites glucosinolates can generate various hydrolysis products, including isothiocyanates (ITCs). Their role in defence against insects and pest their potential health benefits have been well documented, but our knowledge regarding endogenous molecular mechanisms of effect plants is limited. Here we investigated allyl-isothiocyanate (AITC) on Arabidopsis thaliana mutants impaired homeostasis low-molecular weight thiol glutathione. We show...
Malectin domain (MD) is a ligand-binding protein motif of pro- and eukaryotes. It particularly abundant in Viridiplantae, where it occurs as either single (MD, PF11721) or tandemly duplicated (PF12819) called malectin-like (MLD). In herbaceous plants, MD- MLD-containing proteins (MD proteins) are known to regulate development, reproduction, resistance various stresses. However, their functions woody plants have not yet been studied. To unravel potential role wood we carried out genome-wide...
Abstract Wood of broad-leaf tree species is a valued source renewable biomass for biorefinery and target genetic improvement efforts to reduce its recalcitrance. Glucuronoxylan (GX) plays key role in recalcitrance through interactions with cellulose lignin. To recalcitrance, we modified wood GX by expressing GH10 GH11 endoxylanases from Aspergillus nidulans hybrid aspen ( Populus tremula L. x tremuloides Michx.) targeting the enzymes cell wall. The xylanases reduced height, cambial activity...
Abstract Background: Malectin domain (MD) is a ligand-binding protein motif of pro- and eukaryotes. It particularly abundant in Viridiplantae , where it occurs as either single (MD, PF1721) or tandemly duplicated (PF12819) called malectin-like (MLD). In herbaceous plants, MD- MLD-containing proteins (MD proteins) are known to regulate development, reproduction, resistance various stresses. However, their functions woody plants have not yet been studied. To unravel potential role wood we...