Molecular Mechanisms of Tungsten Toxicity Differ for Glycine max Depending on Nitrogen Regime.

ABSTRACT: Tungsten (W) finds increasing application in military, aviation and household appliance industry, opening new paths into the environment. Since W shares certain chemical properties with the essential plant micronutrient molybdenum (Mo), it is proposed to inhibit enzymatic activity of molybdoenzymes [e.g., nitrate reductase (NR)] by replacing the Mo-ion bound to the co-factor. Recent studies suggest that W, much like other heavy metals, also exerts toxicity on its own. To create a comprehensive picture of tungsten stress, this study investigated the effects of W on growth and metabolism of soybean (Glycine max), depending on plant nitrogen regime [nitrate fed (N fed) vs. symbiotic N₂ fixation (N fix)] by combining plant physiological data (biomass production, starch and nu

SUBMITTER: Preiner J 

PROVIDER: S-EPMC6454624 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature