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The response of photosynthesis parameters, catalase, superoxide dismutase and peroxidase activity, malondialdehyde, proline, chlorophyll, yield and yield components to foliar application of calcium and simulated acid rain in wheat were investigated. Foliar treatment of calcium led to significant increases in the photosynthesis rate, transpiration rate, stomatal conductance, proline, chlorophyll, yield and yield components in plants subjected to acid rain. Antioxidant enzyme activity and lipid peroxidation in the wheat leaves decreased because of calcium foliar application. Calcium hindered degradation of the rubisco subunits under acid rain treatment compared with water-treated plants. Results suggest that acid rain induces the production of free radicals resulting in lipid peroxidation of the cell membrane so that significant increase in antioxidant enzyme activity was observed. In addition, photosynthetic parameters i.e. photosynthesis rate, transpiration rate and stomatal conductance were drastically suppressed by acid rain. The cellular damage caused by free radicals might be reduced or prevented by a protective metabolism including antioxidative enzymes and calcium. We report that foliar application of calcium before acid rain may ameliorate the adverse effects of acid rain in wheat plants.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3656184 | PMC |
http://dx.doi.org/10.1007/s12298-013-0165-7 | DOI Listing |
Elevated acidity from natural and anthropogenic sources can be a significant stressor for plants, affecting essential processes such as nutrient uptake and growth. While low pH (< 4) is generally considered stressful for plants, differential impacts of distinct acid types-organic versus inorganic, strong versus weak-on plant growth and development remain unclear. To address this knowledge gap, we evaluated the responses of two Brassicaceae species to organic (acetic) and inorganic (hydrochloric, sulfuric) acids at three pH levels (pH 2.
View Article and Find Full Text PDFAdv Sci (Weinh)
August 2025
Bioinspired Soft Robotics Laboratory, Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy.
Environmental and distributed monitoring of remote, inaccessible, or polluted areas requires low-maintenance and sustainable solutions. Passive dispersal strategies with (bio)degradable fliers, inspired by plant anemochory, offer an eco-friendly approach to deploy distributed sensors with minimal human intervention. In this work, a degradable flier, inspired by Tipuana tipu samaras, is presented, integrating 3D printed porous cellulose nanocrystal aerogel (CNCa) sensors onto poly(vinyl alcohol) (PVA) wings.
View Article and Find Full Text PDFMethodsX
June 2025
Department of Mathematics, Birla Institute of Technology and Science, Pilani, India.
Air pollution poses a significant challenge to public health and the global environment. The Industrial Revolution, advancing technology and society, led to elevated air pollution levels, contributing to acid rain, smog, ozone depletion, and global warming. Poor air quality increases risks of respiratory inflammation, tuberculosis, asthma, chronic obstructive pulmonary disease (COPD), pneumoconiosis, and lung cancer.
View Article and Find Full Text PDFMaterials (Basel)
July 2025
Department of Engineering "Enzo Ferrari", University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy.
The development of slow-release fertilizers (SRFs) based on production residues is a promising strategy to improve nutrient use efficiency and promote circular economy practices in agriculture. In this study, a series of experimental formulations were designed and tested using pumice scraps, liquid and dried blood, and bone meal, aiming at producing sustainable and low-cost N-P-K SRFs. These were processed through mixing and granulation, both in the laboratory and on a semi-industrial scale.
View Article and Find Full Text PDFISME Commun
January 2025
Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Digital polymerase chain reaction (dPCR) is a DNA quantification technology that offers absolute quantification of DNA templates. In this study, we optimized and validated a chip-based dPCR EvaGreen assay with commonly used 16S rRNA gene primer pairs and compared its performance to quantitative real-time PCR (qPCR). We compared measurements of low amounts of template DNA using a newly designed synthetic DNA standard to assess precision, accuracy, and sensitivity.
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