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A Glutamate Receptor-Like Gene AtGLR25 With Its Unusual Splice Variant Has a Role in Mediating Glutamate-Elicited Changes in Arabidopsis Root Architecture.
Plant Cell Environ
January 2025
College of Resources and Environmental Sciences, Department of Plant Nutrition, China Agricultural University, Beijing, Haidian, China.
The occurrence of external L-glutamate at the Arabidopsis root tip triggers major changes in root architecture, but the mechanism of -L-Glu sensing is unknown. Members of the family of GLUTAMATE RECEPTOR-LIKE (GLR) proteins are known to act as amino acid-gated Ca-permeable channels and to have signalling roles in diverse plant processes. To investigate the possible role of GLRs in the root architectural response to L-Glu, we screened a collection of mutants with T-DNA insertions in each of the 20 AtGLR genes.
View Article and Find Full Text PDFSynergistic Cu(II)/Amine-Catalyzed Cyclization of Enynone: Assembly of Tetralone and Tetrahydronaphthylimine.
Org Lett
January 2025
School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
An unprecedented synergistic copper- and amine-catalyzed cyclization of enynone is reported. This reaction features an efficient and straightforward construction of multisubstituted tetralone through an amine-assisted regioselective oxygen atom transfer process and stereoselective intramolecular Michael addition cyclization. Under dehydrative reaction conditions, the synthesis of tetrahydronaphthylimine derivatives with ketone group tolerance is achieved, which could be challenging via traditional methods.
View Article and Find Full Text PDFCu@DPP-SPION: A Novel and Versatile Catalyst for the Synthesis of Thioxo-Tetrahydropyrimidine Derivatives under Mild Reaction Conditions.
Curr Org Synth
January 2025
Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Introduction: The development of efficient and sustainable catalytic methodolo-gies has garnered considerable attention in contemporary organic synthesis.
Methods: Herein, we present a novel approach employing the Cu@DPP-SPION catalyst for the synthesis of ethyl 4-(aryl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate derivatives. This versatile catalytic system incorporates copper nanoparticles supported on 4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzoic acid-functionalized superparamagnetic iron oxide nanoparticles (SPIONs).
Toward Surface Passivation of Black Phosphorus via a Self-Assembled Ferrocene Molecular Layer.
Langmuir
January 2025
School of Physics, East China University of Science and Technology, Shanghai 200237, China.
Black phosphorus (BP), a promising two-dimensional material, faces significant challenges for its applications due to its instability in air and water. Herein, molecular dynamics simulations reveal that a self-assembled ferrocene (FeCp) molecular layer can form on BP surfaces and remain stable in aqueous environments, predicting its effectiveness for passivation. This theoretical finding is corroborated by X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy, and optical microscopy observations.
View Article and Find Full Text PDFDevelopment and Validation of a Stressor-Coping Style Scale for Students in a Public Medical School.
Acta Med Philipp
December 2024
College of Medicine, University of the Philippines Manila.
Background: The medical curriculum is one of the most stressful academic curricula worldwide. Studies indicate that great levels of stress, that encompass academics to personal life, may be connected to a number of worrying statistics for the mental health of Philippine medical students.
Objectives: To develop a validated stressor-coping style scale for students in a public medical school.
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