Article
Plant Sciences
David Stuart Thompson, Azharul Islam
Summary: The extensibility of synthetic polymers and plant cell walls can be modulated by plasticizers and water, affecting their hydration and behavior, potentially leading to physiological consequences and strategies to improve crop resilience. Expansins play a role in facilitating rehydration and swelling of these materials, showing that the relationship between water potential and hydration is influenced by composition.
Article
Plant Sciences
Wenlong Li, Sedighe Keynia, Samuel A. Belteton, Faezeh Afshar-Hatam, Daniel B. Szymanski, Joseph A. Turner
Summary: The mechanical properties, size and geometry of cells, and internal turgor pressure play a significant role in cell morphogenesis. This study presents an experimental-computational approach to analyze the elastic bending behavior of Arabidopsis pavement cells and measure turgor pressure under different osmotic conditions. The results reveal the nonuniform distribution of wall modulus and provide insights into the heterogeneity and anisotropy of plant cell walls.
Article
Biochemistry & Molecular Biology
Yintong Chen, Wenlong Li, Joseph A. Turner, Charles T. Anderson
Summary: This study reveals the importance of wall mechanics and turgor pressure in plant cell deformations, with the PLL12 gene playing a crucial role in stomatal dynamics in Arabidopsis thaliana. The findings suggest that PLL12 is essential for maintaining normal wall modulus and turgor pressure during stomatal responses to light, and for regulating calcium crosslinked pectin levels in guard cell walls.
Article
Chemistry, Multidisciplinary
Zhenyu Wang, Junfeng Tang, Liqi Zhu, Yan Feng, Le Yue, Chuanxi Wang, Zhenggao Xiao, Feiran Chen
Summary: This study analyzed the hormonal pathways in tobacco cells exposed to manganese ferrite nanoparticles and nitrogen-doped carbon dots. The results showed that these nanoparticles promoted cell viability and growth through different signaling pathways, affecting cell morphology and hormone levels.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Biochemistry & Molecular Biology
Jongcheol Lee, Juseok Choi, Luyi Feng, Jingyi Yu, Yunzhen Zheng, Qian Zhang, Yen-Ting Lin, Saroj Sah, Ying Gu, Sulin Zhang, Daniel J. Cosgrove, Seong H. Kim
Summary: The regiospecific assembly of cellulose microfibrils (CMFs) in the periclinal wall of plant epidermal cells was investigated, revealing highly aligned CMFs in the cell edge region and mostly isotropic distribution throughout the wall thickness. This subcellular-level heterogeneity provides new insights into the tissue-level anisotropy of cell wall materials and resolves a previous contradiction between spectroscopic and microscopic studies. The findings contribute to a better understanding of cell wall architecture and structure-geometry relationships.
Review
Biochemistry & Molecular Biology
Youssef Chebli, Amir J. Bidhendi, Karuna Kapoor, Anja Geitmann
Summary: The plant cell wall serves as an important extracellular matrix that envelops cells, maintains their shape and structure, interacts with symbionts, and protects against external stresses. The assembly of this matrix is regulated by the cytoskeleton, which also plays a key role in perceiving mechanical cues and mediating intracellular responses related to cell wall structure changes. Delivery processes of cell wall precursors and their structural continuity are crucial for cell wall assembly, with various morphogenetic processes relying on cell wall assembly as a critical element.
Article
Plant Sciences
Aya Yamaguchi, Kouichi Soga, Kazuyuki Wakabayashi, Takayuki Hoson
Summary: The exogenous application of ethylene or ACC decreases the capacity of cell wall extension in plants. The decrease in extensibility is due to the decrease in irreversible extensibility. ACC increases the molecular mass of xyloglucans and decreases the activity of xyloglucan-degrading enzymes. The downregulation of VaXTHS4 expression may be responsible for the increase in xyloglucan molecular mass.
Review
Cell Biology
Celia Municio-Diaz, Elise Muller, Stephanie Drevensek, Antoine Fruleux, Enrico Lorenzetti, Arezki Boudaoud, Nicolas Minc
Summary: The cell wall is a thin and rigid layer that protects plant and fungal cells from mechanical stress. It is made of polysaccharides and proteins, and can change in composition and geometry during growth or infection. Recent studies have shown that the cell wall can detect and measure mechanical stress, and researchers have made progress in understanding how it strengthens to ensure surface integrity. This knowledge has important implications for cell growth and survival.
JOURNAL OF CELL SCIENCE
(2023)
Article
Biology
Alan Crivellaro, Alma Piermattei, Jiri Dolezal, Paul Dupree, Ulf Buentgen
Summary: More than 200 years after von Humboldt's pioneering work on the treeline, our understanding of the cold distribution limit of upright plant growth is still incomplete. Contrary to popular belief, this study shows that the lignification of cell walls in 'woody' herbs can vary greatly, and small plants above the treeline may contain less lignin. The findings suggest that extremely cold temperatures can affect a plant's ability to lignify their secondary cell walls.
COMMUNICATIONS BIOLOGY
(2022)
Article
Biology
Kazuyuki Wakabayashi, Kouichi Soga, Takayuki Hoson, Harue Masuda
Summary: In this study, the effects of Pb on the mechanical and chemical properties of rice coleoptile cell walls and their growth were investigated. The results showed that the inhibition concentration of Pb was higher in air-grown seedlings compared to water-grown ones. Pb treatment significantly decreased the mechanical extensibility of the cell wall in both air- and water-grown seedlings, and the increased cell wall thickness may contribute to the inhibition of coleoptile growth.
Article
Materials Science, Multidisciplinary
Lucas J. Albornoz, Pamela C. Guruciaga, Vincent Jeudy, Javier Curiale, Sebastian Bustingorry
Summary: The study investigates the roughness of domain walls in GdFeCo thin films, finding differences between experimental results and theoretical predictions. The analysis is done within a model considering length-scale crossovers, which successfully bridges the gap between the two. Additionally, the size of depinning avalanches at finite temperatures is quantified.
Article
Materials Science, Multidisciplinary
L. J. Albornoz, E. E. Ferrero, A. B. Kolton, V Jeudy, S. Bustingorry, J. Curiale
Summary: Experimental measurements allow the direct determination of the velocity and correlation length exponents of depinning transition in a ferrimagnetic GdFeCo thin film with perpendicular magnetic anisotropy. The whole family of exponents characterizing the transition is deduced, indicating that the depinning of magnetic domain walls is better described by the quenched Edwards-Wilkinson universality class.
Article
Materials Science, Multidisciplinary
T. Xing, N. Vernier, X. Y. Zhang, Y. G. Zhang, W. S. Zhao
Summary: We conducted a statistical study on the transit time of a magnetic domain wall passing through a laser spot on a two-dimensional magnetic thin film. The velocity of the domain wall measured in this way is consistent with other methods, but the transit time itself is not reproducible and exhibits a significant distribution. We explained this distribution by assuming the movement occurs through jumps governed by a Poisson process. By fitting this distribution, we obtained the number of jumps required to reverse magnetization in the small area under the laser spot. This important parameter can enhance our understanding of the creep regime.
Article
Nuclear Science & Technology
Radan Sedlacek, Dietmar Deuble
Summary: A thin wall mechanical framework is proposed for calculating stresses, strains, and displacements in fuel rod cladding deformed plastically. The standard thin wall approximation is extended to consider displacement boundary conditions at inner or outer radius. Analytical solutions and FEM simulations are used to assess the proposed approach.
NUCLEAR ENGINEERING AND DESIGN
(2021)
Article
Agronomy
Nana Fan, Wuwu Wen, Li Gao, Aimin Lv, Liantai Su, Peng Zhou, Yuan An
Summary: This study investigates the role of the polygalacturonase gene MsPG4 in regulating cell wall extensibility and alfalfa resistance to aluminum (Al) stress. The results show that MsPG4 effectively increases cell wall extensibility and Al resistance in alfalfa through hydrolysis of pectins in the cell wall.
Correction
Plant Sciences
Pawel Zajdel, Mariusz Pietruszka, Aleksandra Haduch-Sendecka
ACTA PHYSIOLOGIAE PLANTARUM
(2016)
Article
Plant Sciences
Mariusz Pietruszka, Aleksandra Haduch-Sendecka
ACTA PHYSIOLOGIAE PLANTARUM
(2016)
Article
Neurosciences
Mariusz Pietruszka, Marcin Lipowczan
Article
Biophysics
Marcin Lipowczan, Mariusz Pietruszka
JOURNAL OF BIOLOGICAL PHYSICS
(2017)
Article
Multidisciplinary Sciences
Mariusz Pietruszka, Monika Olszewska, Lukasz Machura, Edward Rowinski
SCIENTIFIC REPORTS
(2018)
Article
Plant Sciences
Mariusz A. Pietruszka
JOURNAL OF PLANT GROWTH REGULATION
(2020)
Article
Biophysics
Mariusz Pietruszka, Monika Olszewska
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS
(2020)
Article
Multidisciplinary Sciences
Mariusz A. Pietruszka
Summary: Temperature control is essential for survival in biological systems, with individual physiological temperatures influenced by various factors. By analyzing extracellular ionic fluxes, it was found that a specific temperature is encoded by dynamic entropy, indicating a phase transition. The study also revealed critical scaling of dynamic measures for covariates such as spectral signature and Lyapunov exponent.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Mariusz A. Pietruszka
Summary: This study explores the role of pH and temperature in the expansive growth of plant coleoptile/hypocotyl non-meristematic zone or plant and fungal cells. By examining the chemical bond statistics, a relationship between growth and pH is analyzed. The study confirms the acid growth hypothesis at a semi-empirical and microscopic level, and identifies the importance of pH and temperature-dependent chemical potential in growth events across scales.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Multidisciplinary Sciences
Mariusz A. Pietruszka
Summary: This article explores the role of blood in animals and notes the unusual emergent phase in human blood. The optimal functioning of the body is influenced by various chemical and physical conditions, but the regulatory mechanism for temperature has not been identified. Through experimental methods and mathematical physics tools, a reference temperature necessary for achieving homeostasis can be established.
SCIENTIFIC REPORTS
(2021)
Article
Biology
Mariusz A. Pietruszka
Summary: This study demonstrates the existence of collective excitations similar to those in superconductors and superfluids in human blood. The occurrence of order and dynamic Meissner effect indicates the presence of a superconducting ion environment. The findings have potential applications in medicine for health assessment.
Article
Metallurgy & Metallurgical Engineering
E. Rowinski, M. Pietruszka
ARCHIVES OF METALLURGY AND MATERIALS
(2019)
Article
Biology
Mariusz Pietruszka, Marcin Lipowczan
Summary: This article discusses the origin of canonical and aberrant DNA mutations and the contribution of protons to genetic stability. The empirical results suggest that the concentration ratio of canonical and tautomeric base pairs in the DNA environment can be altered by the pressure exerted by protons through changes in pH. It is anticipated that deviation from a specific temperature and occurrence of critical pH in the cellular system could lead to tautomerization and point mutations.
Article
Biochemistry & Molecular Biology
Monika Olszewska, Aleksandra Haduch-Sendecka, Mariusz Pietruszka
GENERAL PHYSIOLOGY AND BIOPHYSICS
(2018)
Article
Plant Sciences
Monika Olszewska, Adam Konefal, Mariusz Pietruszka
ACTA PHYSIOLOGIAE PLANTARUM
(2017)