When pollen lands on a receptive stigma, it germinates and extends a tube inside the transmitting tissue of the pistil to deliver the sperm cells for double fertilization. The growth of the pollen tube triggers significant alterations in its gene expression. The extent to which these changes occur in the vegetative cell or extend to the sperm cells transported by the tube is unclear but important to determine since sperm cells are believed to acquire a competency for fertilization during pollen-pistil interactions.
View Article and Find Full Text PDFThere is a critical need for novel composite materials for high-performance chemical filtration and detoxification of organophosphonates (OPs) and other harmful compounds found in nerve agents, pesticides, and industrial processes. In this work, rapid hydrolysis of OPs using high-surface-area zirconium-based MOF-aerogel composites is demonstrated. Using a unique surfactant-templated solvothermal synthesis method, mesoporous UiO-66-NH grown on the fibers within a polyacrylonitrile (PAN)/polyvinylpyrrolidone (PVP) nanofibrous sponge can produce a 3D MOF-polymer matrix with a specific surface area of up to 900 m g -almost 2X larger than the highest previously reported values while maintaining robust mechanical integrity.
View Article and Find Full Text PDFMelatonin significantly influences the regulation of plant growth, development, and stress tolerance. However, the regulatory mechanisms underlying melatonin accumulation for drought tolerance in citrus are not fully understood. In this study, we first demonstrated that application of exogenous melatonin resulted in better drought tolerance by reducing water loss and maintaining redox homeostasis.
View Article and Find Full Text PDFBackground: Salt stress is considered to be one of the major abiotic stresses influencing rice growth and productivity. To improve rice crop productivity in saline soils, it is essential to choose a suitable variety for mitigating salt stress and gain a deep understanding of the underlying mechanisms. The current study explored the salt tolerance mechanism of wild rice 'HD96-1 (salt resistive)' and conventional rice 'IR29 (salt sensitive)' by evaluating morph-physiological, transcriptomic, and metabolomic approaches.
View Article and Find Full Text PDFBackground: Gastrointestinal stromal tumors (GISTs) are relatively rare, accounting for approximately 0.1-3% of all gastrointestinal tumors. Their incidence is higher in individuals aged 50 to 70 years, with an equal gender distribution.
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