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Pollen-pistil interaction in Mauritia flexuosa: structural and cytological aspects provide insight into the reproductive success of a dioecious palm with supra-annual flowering in a semiarid environment.
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Laboratório de Ecologia Vegetal, Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Brazil.
The success of pollen-pistil interaction in Mauritia flexuosa (buriti), a palm adapted to the humid ecosystems, 'veredas', within the Cerrado, is influenced by intrinsic and environmental factors. Its supra-annual flowering, dioecy, and adverse climate conditions pose challenges for fertilization, therefore information on floral biology is essential. This study aimed to ascertain stigma receptivity, and elucidate structural, cytochemical, and ultrastructural aspects of the pollen-pistil relationship.
View Article and Find Full Text PDFCellular and biochemical alterations induced by diesel oil in the brown alga Sargassum cymosum var. stenophyllum cultured in vitro.
Chemosphere
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Plant Morphogenesis and Biochemistry Laboratory, Federal University of Santa Catarina, P. O. Box 476, 88049-900, Florianopolis, SC, Brazil. Electronic address:
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View Article and Find Full Text PDFMorphological and cytochemical characterization of the peripheral blood cells in .
Heliyon
September 2024
Lab of Pathology and Immunology of Aquatic Animals, Jiangsu Ocean University, Lianyungang, 222005, China.
The flounder () is a highly nutritious, cultured bony fish with a high economic value. The health of the fish is closely related to its blood cells, which are critical for oxygen transport, natural defense, and immunity. The microstructures, classification, counting and size of peripheral blood cells in .
View Article and Find Full Text PDFComparative electron microscopic visualization of the lung alveolar epithelial glycocalyx with different staining and labeling methods.
J Anat
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Institute of Functional Anatomy, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Article Synopsis
- * The study aimed to improve visualization techniques for this glycocalyx using chemical fixation and various staining methods in mice, comparing agents like alcian blue, ruthenium red, and lanthanum nitrate.
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Malformation of the endoplasmic reticulum system evolving into giant inclusions and Auer bodies in acute promyelocytic leukemia: an ultrastructural study of 6 cases.
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Department of Histopathology, Christie NHS Foundation Trust, Manchester, UK.
The endoplasmic reticulum（ER）is the largest membranous network serving as a region for protein, lipid and steroid synthesis, transport and storage. Detailed information about ER-cisternae, ER-tubules and rough endoplasmic reticulum (rER) is scarce in human blood cells. This study describes a series of giant inclusions and Auer bodies in promyeloblasts in six patients with acute promyelocytic leukemia (APL), by light microscopy, transmission electron microscopy (TEM) and cytochemical stains.
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