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Free, publicly-accessible full text available January 1, 2023
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Free, publicly-accessible full text available October 1, 2022
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Free, publicly-accessible full text available September 24, 2022
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Probing Real Time Redox Events in Human Airway Epithelial Cells Exposed to an Environmental PeroxideAir pollutants such as ozone, particulate matter, and secondary organic aerosols (SOA) induce intracellular oxidative stress via the generation of reactive oxygen species (ROS). While ROS play important roles in regulating signaling pathways, supra-physiological levels disrupt redox homeostasis and potentiate inappropriate oxidation of regulatory thiols. We examined the effect of isoprene hydroxy hydroperoxide (ISOPOOH), an environmentally derived peroxide that contributes to SOA, on the interplay between bioenergetics and intracellular redox status. We used live cell imaging of human airway epithelial cells (HAECs) expressing the genetically encoded ratiometric biosensors roGFP, iNAP1, and HyPER, to monitor changes in the glutathione redox potentialmore »Free, publicly-accessible full text available October 1, 2022
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Abstract Irrigation is an important adaptation to reduce crop yield loss due to water stress from both soil water deficit (low soil moisture) and atmospheric aridity (high vapor pressure deficit, VPD). Traditionally, irrigation has primarily focused on soil water deficit. Observational evidence demonstrates that stomatal conductance is co-regulated by soil moisture and VPD from water supply and demand aspects. Here we use a validated hydraulically-driven ecosystem model to reproduce the co-regulation pattern. Specifically, we propose a plant-centric irrigation scheme considering water supply-demand dynamics (SDD), and compare it with soil-moisture-based irrigation scheme (management allowable depletion, MAD) for continuous maize cropping systemsmore »Free, publicly-accessible full text available December 1, 2022
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Free, publicly-accessible full text available September 1, 2022
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Free, publicly-accessible full text available July 1, 2022