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Molecular Mechanism

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Molecular Mechanism - Free Register to Access Experts & Abstracts

Michele Parrinello - One of the best experts on this subject based on the ideXlab platform.

Narjes Ansari - One of the best experts on this subject based on the ideXlab platform.

Tarak Karmakar - One of the best experts on this subject based on the ideXlab platform.

Shen Xiao - One of the best experts on this subject based on the ideXlab platform.

  • Research on the Physiological and Molecular Mechanism of Stress Acclimation in Plants
    Plant Physiology, 2014
    Co-Authors: Shen Xiao
    Abstract:

    Plants are confronted with various biotic and abiotic stresses during their growth and development processes. Nowadays, many researches on plant dealing with stresses have been performed. In nature, all kinds of environmental stress factors are more likely to affect plants in a gradual and cumulative way, and meanwhile plants cope with them by acclimation. Although there are some reports that acclimation can increase plant tolerance to abiotic stresses, the physiological and Molecular Mechanism of acclimation is unclear. In this review we introduced four stress acclimation processes, including disease, cold, heat and salt. We also summarized the physiological and Molecular Mechanism of acclimation, such as the accumulation of inactivated signal molecules, epigenetic modif ication and so on.

Dominique Derome - One of the best experts on this subject based on the ideXlab platform.

  • Molecular Mechanism of moisture induced transition in amorphous cellulose
    ACS Macro Letters, 2014
    Co-Authors: Karol Kulasinski, Sergey V Churakov, Richard A Guyer, Sinan Keten, Jan Carmeliet, Dominique Derome
    Abstract:

    We investigate the influence of adsorbed water on amorphous cellulose structure and properties, within the full range of moisture content from the dry state to saturation, by Molecular dynamics simulation. Increasing water content results in overall swelling, a substantial decrease in stiffness, and higher diffusivity of the water molecules. The obtained sorption curve as well as the range of swelling and weakening are confirmed by experiments. The measured properties undergo a noticeable change at about 10% of moisture content, which suggests that a transition occurs in the porous system, indicating that the sorption process is stepwise. Our analysis of water network formation reveals that the onset of percolation coincides with the moisture content at which a transition in the material properties is observed. An in-depth analysis of the Molecular Mechanism of hydrogen bonding, van der Waals interactions, and water network in the two regimes enhances the understanding of the adsorption process.