Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 94 for “"Vacuoles"”.
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Chloroquine accumulation in Plasmodium falciparum isolated digestive vacuoles
… intact Plasmodium falciparum isolated digestive vacuoles, the site of chloroquine accumulation and action. Marker enzymes and gel electrophoresis were used to demonstrate purity, and electron microscopy to verify integrity of isolated vacuoles. Using this method, vacuoles were isolated in a yield …
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Analysis of the maturation of Rhodococcus equi-containing vacuoles in macrophages
… foal alveolar macrophages, R.equi-containing vacuoles (RCVs) do not mature into phagolysosomes. However, most of the intracellular events during R.equi infection have not been investigated in detail. The aim of this study was to elucidate the intracellular compartmentation of R.equi and the …
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Expression of the P-glycoprotein Homologue1 on food vacuoles isolated from Chloroquine-sensitive and resistant Plasmodium falciparum strains
… homologue1 (Pgh1), was quantified on food vacuoles, the site of action of chloroquine. Chloroquine susceptibility was determined in 8 different P. falciparum strains. Food vacuoles were isolated from trophozoites of two chloroquine-sensitive (307 and D10) and three chloroquine-resistant …
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The regulation of yeast homotypic membrane fusion by class C ABC transporters
… Fusion priming does not involve contact between vacuoles but includes the disassembly of complexes of SNAREs on the same membrane (cis) by Sec18p (NSF) and its cochaperone Sec17p (a-SNAP). Tethering requires Ypt7p (a Rab GTPase) and the HOPS effecter complex. SNARE complexes, including one R …
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Separation of abnormal spermatozoa from semen produced by bulls with impaired testicular thermoregulation
… for all techniques and spermatozoa with nuclear vacuoles on normal shaped heads were enriched; however, head abnormalities were removed with increasing frequency as the severity of the head distortion increased. In Study 3, frozen-thawed ejaculates with a high concentration of spermatozoa with …
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Mechanisms and ecological implications of resistance to predation by heterotrophic ciliates expressed by marine bacteria
… organisms led to expulsion of Shewanella-filled vacuoles into the external milieu. The role of intracellular survival as an environmental persistence mechanism for Shewanella sp. cp20 was investigated. Bottom-up environmental controls, specifically phosphorus starvation, played a role in the …
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The regulation of yeast homotypic vacuole fusion and membrane trafficking events by sphingolipids, ergosterol, and lipid rafts
… proteins enrich in the vertex ring domain of vacuoles that are in the process of tethering and docking together, which can be visualized with microscopic techniques. While there has been significant progress made in the studies of glycerophospholipids as regulatory lipids, there are few such …
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The Structure and Replication of Semliki Forest Virus, A Mosquito-Borne Animal Virus
… plasma membrane, or to the membranes of certain vacuoles, where complete virus particles are formed by a budding process. An envelope, consisting of a portion of the membrane covered with projections, encloses the nucleocapsid as it is extruded into the extracellular space or the interior of a …
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The role of the Dgk1 and Pah1 in lipid interconversion on saccharomyces cerevisiae vacuole physiology, homeostasis, protein sorting and fusion
… The double deletion showed highly fragmented vacuoles, much like Pah1 deletion, though these vacuoles were able to reform after osmotic shock, similar to the wild type background, but unlike either single deletion strain. This strain displayed reduced fusion and, interestingly, what appeared …
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Analysis of AtNHX1-expressing transgenic cotton under high salt conditions and in the field
… is to increase the solute concentration in the vacuoles of plant cells by sequestering sodium ion (Na+) into the vacuoles of plant cells. Consequently, it would reduce the toxicity of high Na+ in the cytoplasm and increase the vacuolar osmotic pressure with the concomitant generation of more …
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Osmoregulation in Trypanosoma Cruzi: The Role of the Acidocalcisome
… rate of volume recovery. Isolated contractile vacuoles were enriched in alkaline phosphatase, aquaporin, and some acidocalcisomal markers.
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The regulation of yeast homotypic vacuole fusion by phosphatidic acid and diacylglycerol
… regulatory lipids localize to the site of fusing vacuoles termed the “vertex ring” implying an important role for them throughout the fusion process. It has been shown that the minimal membrane lipid content necessary for fusion to occur includes ergosterol, phosphatidic acid (PA), diacylglycerol …
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Characterization of Bacteria From the Sea Ice of Antarctica
… group are filamentous rods which also form gas vacuoles. These organisms belong to the order Cytophagales and represent a new genus in the poorly defined taxon of Cytophaga-like bacteria.
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Stretched to the limit : leaf tensile properties and lignin content of resurrection plants
… plants on drying: cell-wall folding, packing vacuoles with non-aqueous solute or a combination of the two. Tensile strength in C. wilmsii ( dicot) increased when naturally-dried but decreased when flash-dried, possibly due to the nature of the drying mechanisms (wall folding). The, leaf …
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Apoptotic markers in ejaculated human spermatozoa
… chromatin network, presence of vacuoles in the nuclear chromatin, membranous bodies within the vacuoles of the chromatin, partially disrupted nuclear membranes, plasma membrane protuberances and apoptotic bodies containing cytoplasmic vacuoles and dense masses. This study has …
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Συσχέτιση ιστολογικών, βιοχημικών και αιματολογικών ευρημάτων μετά από χορήγηση LPS P. aeruginosa σε επίμυες wistar: Πειραματική μελέτη
… necrosis, bridging fibrosis (IR) and cytoplasmic vacuoles in hepatocytes. Adrenals with cytoplasmic vacuoles mainly in cells of the fascicular zone, and kidneys with necrosis of epithelial cells of the proximal convoluted tubules. Ultrastractural examination of the liver showed swollen …
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Pathogenic mechanisms of Photobacterium damselae subspecies piscicida in hybrid striped bass
… of bacteria within spacious, clear vacuoles in the macrophages. Using acid phosphatase as a lysosomal marker, it was shown that P. damselae inhibits phagolysosomal fusion. Invasion and replication of P. damselae within epithelioma papillosum carpio (EPC), channel catfish ovary (CCO), …
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Distinguishing cyanobacteria from algae using bio-optical remote sensing
… of the effects of intracellular gas vacuoles on the optics of phytoplankton using a two-layered sphere model. The results demonstrate how gas vacuoles impart distinctive bio-optical features to cyanobacteria and cause backscattering to be enhanced. An advanced inversion algorithm is …
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ΜΕΛΕΤΗ ΤΟΥ ΦΛΟΙΩΜΑΤΟΣ ΣΤΟ ΑΓΡΩΣΤΩΔΕΣ ΦΥΤΟ AEGILOPS COMOSA VAR THESSALICA ΣΕ ΕΠΙΠΕΔΟ ΟΠΤΙΚΗΣ ΚΑΙ ΗΛΕΚΤΡΟΝΙΚΗΣ ΜΙΚΡΟΣΚΟΠΙΑΣ
… RIBOSOMES, DICTYOSOMES, MICROTUBULES AND VACUOLES.
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Development and application of a high throughput cell based assay to identify apoptosis inducing proteins, and functional characterization of the candidate Vacuole Membrane Protein 1 (Vmp1)
… Vacuole Membrane Protein 1 (Vmp1), which forms vacuoles in cells and subsequently induces apoptosis when overexpressed, has been functionally characterized in detail. It has been reported that VMP1 mRNA is differentially expressed in cancer, acute pancreatitis and kidney ischemia and that the …
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