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 10 of 10 for “"Furrow formation"”.
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Coordination of cellular force-generation during Drosophila ventral furrow formation
… apical forces generated by Drosophila ventral furrow cells undergoing collective apical constriction are coordinated to fold the tissue. In Chapter 2, I investigate how discrete actomyosin contraction events are coordinated in time and between neighboring cells to yield tissue contraction and …
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Rab8 Directs Tubulation and Furrow Ingression During Epithelial Formation in Drosophila Melanogaster
… fundamental changes in cell morphology is the formation of a plasma membrane furrow. The <em>Drosophila</em> embryo undergoes several cycles of rapid furrow ingression during early development, which culminates in the formation of an epithelial sheet. Previous studies have demonstrated the …
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Imaging Drosophila embryo gastrulation to identify stress fields and biomechanical feedback
… that propagate during the first phase of Ventral Furrow Formation (VFF) in the Drosophila melanogaster embryo. Detailed imaging of the underside of the embryo allows us to analyze how morphological aspects of cell clusters change over time. We have used confocal microscopy to take high-resolution …
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Organizing morphogenesis: Mechanisms of actomyosin patterning by RhoGTPase signaling
… question in the context of Drosophila ventral furrow formation, a well-established, simple model of tissue folding. First, we demonstrated how, on the tissue level, combinatorial activation of two transcriptional tissue patterns sets up actomyosin distribution. This tissue-level actomyosin …
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Experiments concerning the mechanism of cytokinesis in Caenorhabditis elegans embryos
… asters and the midzone - to cytokinesis furrow positioning. I developed a UV laser-based severing assay that allows the spatial separation of the region midway between the asters and the spindle midzone. The spindle is severed asymmetrically between one aster and the midzone. I found that …
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Analysis of the function of Drop out, the single homologue of human MAST kinases, in <i>Drosophila</i> cellularisation
… display defects in polarity establishment, furrow formation and the focussing of furrow canal proteins at the leading edge of the invaginating membrane. Additionally, several studies suggest that Dop affects phosphorylation of Dynein and Dynein-dependent transport processes. In this study, …
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Analysis of soil compaction and furrow depth from planter row unit
… for specific row-crop operations, such as furrow formation, seed placement, and soil-conditioning during planting. It affects seed spacing and singulation, root growth, emergence, crop health, yield, and field traffic management. This study analyzes how the planter row unit’s operation …
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Influence of Transplanter Modification and Previous Crop on the Production of No-Till Dark Tobacco
… Tillage shanks were also added to aid in optimal furrow formation. Double-disc opening shoes replaced the original round point shoes and the curved edges of the rear drive wheels were removed, creating a flat surface to increase soil contact. Experimental no-till plots in fescue sod and soybean …
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UNDERSTADING THE ROLE OF PSEUDOKINASE TRB3 IN CANCER PROGRESSION AND CHEMORESISTANCE DURING METABOLIC STRESS
… to play a major role in Drosophila's ventral furrow formation. Further studies revealed that Trb3 is also involved in diabetes, stress-response, and development. Previously, Trb3 upregulation was detected in certain types of cancer but its function remains unknown. The goal of our study is to …
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Active cellular flows: biological networks, cytoplasmic streaming and swimming bacteria
… and C. elegans embryos (including pseudocleavage furrow formation), the pollen tube of seed plants, and plant root hair cells. Our results showcase the elegance and accuracy of asymptotic solutions in capturing the complex flows and stress patterns in diverse biological contexts, reinforcing its …