A5019541264- Plant Reproductive Biology
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Cellular transport and secretion
- Polysaccharides and Plant Cell Walls
- Aluminum toxicity and tolerance in plants and animals
- Plant Stress Responses and Tolerance
- Plant tissue culture and regeneration
- Phytase and its Applications
- Biocrusts and Microbial Ecology
- Biofuel production and bioconversion
- Heavy metals in environment
- Botanical Research and Applications
- Plant Micronutrient Interactions and Effects
- Biomedical Text Mining and Ontologies
- Plant Gene Expression Analysis
- Management and Organizational Studies
- Innovation and Knowledge Management
- Plant Physiology and Cultivation Studies
- Legume Nitrogen Fixing Symbiosis
- Species Distribution and Climate Change
- Banana Cultivation and Research
- Entrepreneurship Studies and Influences
- Lipid Membrane Structure and Behavior
Umeå Plant Science Centre
2011-2024
Swedish University of Agricultural Sciences
2011-2024
KTH Royal Institute of Technology
2012
AlbaNova
2012
Université de Montpellier
2006
Institut National de la Recherche Agronomique
2006
Institut des Sciences des Plantes de Montpellier
2006
Summary The two main features of plant hyper‐accumulator species are the massive translocation heavy metal ions to aerial parts and their tolerance such high concentrations. Recently, several lines evidence have indicated a role for nicotianamine (NA) in homeostasis, through chelation transport NA–metal complexes. function chelates, required loading unloading vessels, has been assigned Yellow Stripe 1 (YSL)‐Like family proteins. We characterized three YSL genes Thlaspi caerulescens context...
Multiple steps of plant growth and development rely on rapid cell elongation during which secretory endocytic trafficking via the trans -Golgi network (TGN) plays a central role. Here, we identify ECHIDNA (ECH) protein from Arabidopsis thaliana as TGN-localized component crucial for TGN function. ECH partially complements loss budding yeast TVP23 function Populus ech mutant, suggesting functional conservation genes. Compared with wild-type, mutant exhibits severely perturbed well defects in...
Abstract The secretion of cell wall polysaccharides through the trans-Golgi network (TGN) is required for plant elongation. However, components mediating post-Golgi pectin and hemicellulose, two major polysaccharides, are largely unknown. We identified evolutionarily conserved YPT/RAB GTPase Interacting Protein 4a (YIP4a) YIP4b (formerly YIP2), which form a TGN-localized complex with ECHIDNA (ECH) in Arabidopsis thaliana. localization YIP4 ECH proteins at TGN interdependent influences VHA-a1...
Plant metal hyperaccumulator species are widely used as models to unravel the heavy tolerance and hyperaccumulation mechanisms. Thlaspi caerulescens is capable of tolerating hyperaccumulating Zn, Cd, Ni. A search for factors involved in cellular Ni, based on yeast screens, led isolation a cDNA encoding functional nicotianamine (NA) synthase (NAS). The T. genome appears contain single copy NAS gene named TcNAS whose expression restricted leaves. analysis dose–response time-course Ni...
Significance Unlike in animals, postembryonic development plants is highly flexible and allows them to modulate their growth patterns response external signals or as part of endogenous developmental programs. Differential cell elongation a widely used program respond signals. Asymmetric distribution the plant hormone indole-acetic acid (auxin) mediated by plasma membrane localized auxin carriers crucial for differential elongation. Our results identify distinct mechanisms trafficking influx...
Abstract The molecular basis of primary wall extension endures as one the central enigmas in plant cell morphogenesis. Classical models suggest that xyloglucan endo-transglycosylase activity is catalyst (together with expansins) controlled loosening through transient cleavage and religation xyloglucan-cellulose cross links. genome Arabidopsis (Arabidopsis thaliana) contains 33 phylogenetically diverse XYLOGLUCAN ENDO-TRANSGLYCOSYLASE/HYDROLASE (XTH) gene products, two which were predicted to...
During cell wall biosynthesis, the Golgi apparatus is platform for matrix biosynthesis and site of packaging, both polysaccharides proteins, into secretory vesicles with correct targeting information. The objective this study was to dissect post-Golgi trafficking using echidna as a vesicle traffic mutant Arabidopsis thaliana pectin-secreting cells seed coat model system. ECHIDNA encodes trans-Golgi network (TGN)-localized protein, which previously shown be required proper structure function...
Root hairs are protrusions from root epidermal cells with crucial roles in plant soil interactions. Although much is known about patterning, polarity and tip growth of hairs, contributions membrane trafficking to hair initiation remain poorly understood. Here, we demonstrate that the trans-Golgi network-localized YPT-INTERACTING PROTEIN 4a 4b (YIP4a/b) contribute activation plasma accumulation Rho-of-plant (ROP) small GTPases during initiation, identifying YIP4a/b as central components...
During early seedling development, the shoot apical meristem is protected from damage as emerges soil by formation of hook. Hook requires differential growth across epidermis below in hypocotyl. The plant hormones ethylene and auxin play key roles during hook development controlling growth. We provide genetic cell biological evidence for role ADP-ribosylation factor 1 (ARF1)-GTPase its effector ARF-guanine-exchange factors (GEFs) Brefeldin A-inhibited GEF (BIG) family GNOM ethylene-...
ABSTRACT The trans-Golgi-network (TGN) has essential housekeeping functions in secretion, endocytosis and protein sorting, but also more specialized plant development. How the robustness of basal TGN function is ensured while are differentially regulated poorly understood. Here, we investigate two key regulators structure function, ECHIDNA Transport Protein Particle II (TRAPPII) tethering complex. An analysis physical, network genetic interactions suggests that communities implicated TRAPPII...
Abstract The trans-Golgi network (TGN), a key compartment in endomembrane trafficking, participates both secretion to and endocytosis from the plasma membrane. Consequently, TGN plays role plant growth development. Understanding how proteins are sorted for or endocytic recycling at is critical elucidating mechanisms of We previously showed that protein ECHIDNA essential phytohormonal control hypocotyl bending because it mediates cell wall components auxin influx carrier AUXIN RESISTANT 1...
Purpose – The aim of this paper is to identify difficulties and tension fields encountered in a Social Accountability (SA) 8000 certification process. based on case study within multinational small–medium enterprise (SME) during the implementation SA8000 standard. Design/methodology/approach In framework study, we adopt cognitivist approach use cognitive maps describe analyze corporate social responsibility (CSR) representations main actors process: owner-manager SME manager. We collected...