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Morphology, histochemistry and ultrastructure of the floral glandular trichomes in three Doronicum species (Asteraceae).
Protoplasma
January 2025
Laboratory of Plant Anatomy and Morphology, Komarov Botanical Institute of the Russian Academy of Sciences, Professor Popov Street, 2, 197376, St. Petersburg, Russia.
Previously, it was found that four types of glandular trichomes (GTs) are developed on the surface of all aerial organs in Doronicum species. A detailed study of leaves had shown that only two types of GTs form in them. Nothing was known about any differences of GTs on vegetative and reproductive organs.
View Article and Find Full Text PDF1950s-1990s: The pioneering era of insect neuroscience in Uruguay.
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January 2025
Departamento de Neurofisiología Celular y Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay. Electronic address:
Insect research has significantly advanced neuroscience by addressing fundamental questions, with groundbreaking discoveries emerging from research carried out in Uruguay. Powered by technological advances, the field has seen milestones in ultrastructure, neuronal and synaptic structure, and complex behavioral findings. Key contributions include the first formal description of chemical synapses, the identification of synaptic vesicle origins in the endoplasmic reticulum, and pioneering work on eye induction and development.
View Article and Find Full Text PDFAberrant acetylation caused by a CDYL splicing mutation contributes to thin mid-piece related asthenoteratozoospermia and male infertility.
Andrology
January 2025
Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
Objectives: Acetylated tubulin is a hallmark of flagellar stability in spermatozoa, and studies have demonstrated the ability of CDYL to function as a tubulin acetyltransferase in spermatozoa. Of note, germline conditional knockout of Cdyl can lead to asthenoteratozoospermia and infertility in male mice. However, the role of CDYL gene in human fertility remains uncharacterized.
View Article and Find Full Text PDFA Case Report of an Immature Pituitary-Specific Transcription Factor 1 (PIT1)-Lineage Pituitary Neuroendocrine Tumor Along With Its Cytology and Ultrastructural Studies.
Cureus
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Department of Pathology, Section of Oncopathology and Morphological Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, JPN.
Immature pituitary-specific transcription factor 1 (PIT1)-lineage pituitary neuroendocrine tumors are composed of PIT1-lineage cells with cytological atypia and limited differentiation. These tumors are rare and no cytological features of this neoplasm have been reported. This study is the first to report the cytological features of an immature PIT1-lineage tumor.
View Article and Find Full Text PDFElectron Tomography of Organelles and Vesicles in the Investigation of SNARE Function and Localization.
Methods Mol Biol
January 2025
Cambridge Institute for Medical Research (CIMR) and Department of Clinical Biochemistry, University of Cambridge School of Clinical Medicine, Cambridge, UK.
Electron tomography can provide additional morphological information not easily obtained by conventional transmission electron microscopy of thin sections. It uses a goniometer stage in the electron microscope to tilt the specimen and collect a series of 2D images from different orientations, which are combined to provide a 3D volume tomogram and a colored reconstruction of the morphological feature(s) of interest. Here we describe the protocols for its use in visualizing changes in organelle morphology after depletion of the SNARE proteins VAMP7 and VAMP8 and to study VAMP7 localization on endolysosomes/lysosomes.
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