A5066599706- Plant Molecular Biology Research
- Plant Reproductive Biology
- Polysaccharides and Plant Cell Walls
- Chromosomal and Genetic Variations
- Microtubule and mitosis dynamics
- Tree Root and Stability Studies
- Plant tissue culture and regeneration
- Cellular Mechanics and Interactions
- Light effects on plants
- Evolution and Genetic Dynamics
- Magnetic and Electromagnetic Effects
- Photosynthetic Processes and Mechanisms
- Bioenergy crop production and management
- CRISPR and Genetic Engineering
- Plant Gene Expression Analysis
- Genetic Mapping and Diversity in Plants and Animals
- Biocrusts and Microbial Ecology
- Species Distribution and Climate Change
- Elasticity and Material Modeling
- Greenhouse Technology and Climate Control
- Plant nutrient uptake and metabolism
- Cell Image Analysis Techniques
- Insect and Arachnid Ecology and Behavior
- Leaf Properties and Growth Measurement
- Slime Mold and Myxomycetes Research
University of Silesia in Katowice
2013-2024
University of Bern
2014-2016
Nara Institute of Science and Technology
2015
Morpho (United States)
2015
Morphogenesis emerges from complex multiscale interactions between genetic and mechanical processes. To understand these processes, the evolution of cell shape, proliferation gene expression must be quantified. This quantification is usually performed either in full 3D, which computationally expensive technically challenging, or on 2D planar projections, introduces geometrical artifacts highly curved organs. Here we present MorphoGraphX (www.MorphoGraphX.org), a software that bridges this...
Abstract Plant architecture is shaped by the continuous production of new organs, most which emerge post-embryonically. This process includes formation lateral branches along existing shoots. Shoot branching fundamental to plant development, plant-environment interactions, and vegetative propagation. Current empirical evidence supports a “detached meristem” model as cellular basis shoot initiation. In this model, small number undifferentiated cells are “sampled” from periphery apical...
Cortical microtubules (CMTs) are often aligned in a particular direction individual cells or even groups of and play central role the definition growth anisotropy. How CMTs themselves is not well known, but two hypotheses have been proposed. According to first hypothesis, align perpendicular maximal direction, and, according second, parallel stress direction. Since both were formulated on basis mainly qualitative assessments, link between CMT organization, organ geometry, cell revisited...
Genetic improvement of native crops is a new and promising strategy to combat hunger in the developing world. Tef major staple food crop for approximately 50 million people Ethiopia. As an indigenous cereal, it well adapted diverse climatic soil conditions; however, its productivity extremely low mainly due susceptibility lodging. has tall weak stem, liable lodge (or fall over), which aggravated by wind, rain, or application nitrogen fertilizer. To circumvent this problem, first semi-dwarf...
Abstract Plant architecture is shaped by the production of new organs, most which emerge postembryonically. This process includes formation lateral branches along existing shoots. Current evidence supports a detached-meristem model as cellular basis shoot initiation. In this model, small number undifferentiated cells are sampled from periphery apical meristem (SAM) to act precursors for axillary buds, eventually develop into Repeated branching thus creates bottlenecks (i.e. somatic drift)...
Background and Aims The arrangement of flowers in inflorescence shoots Arabidopsis thaliana represents a regular spiral Fibonacci phyllotaxis. However, the cuc2 cuc3 double mutant, flower pedicels are fused to stem, phyllotaxis is aberrant mature shoot regions. This study examined causes this altered development, particular whether mutant phenotype consequence defects at apex, or post-meristematic events involved. Methods distribution vascular traces was cross-sections shoots; sequential...
Abstract Age and longevity are key parameters for demography life-history evolution of organisms. In clonal species, a widespread life history among animals, plants, algae fungi, the sexually produced offspring (the genet) grows indeterminately by producing iterative modules, or ramets. The age large genets often remains elusive, while estimates based on their spatial extent as proxy unreliable. Here, we present method estimation using molecular clock accumulation fixed somatic genetic...
Epidermal peels isolated from sunflower hypocotyls provide a convenient model to study the relationship between cortical microtubule orientation and strain rate. Extension of can be modulated using chemical treatment mechanical stress, i.e., by adding incubation medium applying load exceeding yield threshold for irreversible (plastic) strain. In this study, were pre-incubated ca. 12 h (long-term pre-incubation) or 1 (short-term pre-incubation). long-term peels, fusicoccin applied neither...
A hypothesis exists that external and internal factors affect the orientation of cortical microtubules in as much these lead to changes cell elongation rate. Factors stimulate are proposed transverse microtubule orientation, whereas inhibit longitudinal orientation. The rate is equal irreversible strain walls. Incubated epidermis peeled from sunflower hypocotyls does not extend unless it stretched by loading pH incubation medium appropriately low. Thus, peels provide a convenient model...
The epidermis of Helianthus hypocotyl can be peeled off and, in the form detached strips used as a model system to study effect on cortical microtubule (cMTs) orientation these factors, which are difficult manipulated situ, such apoplastic pH or applied stress. In first step, however, and reorientation cMTs situ must described. under epidermal wall at different positions along its opposite sides were studied by means immunostaining, using epi-fluorescence microscopy. angle λ that parallel...
This article is a Commentary on Owens et al . (2024), 243 : 423–439