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.
Results
Showing 1 to 14 of 14 for “"Turgor pressure"”.
-
Melanin-independent accumulation of turgor pressure in appressoria of Phakopsora pachyrhizi
… of some plant pathogenic fungi accumulate turgor pressure that produces a mechanical force enabling the direct penetration of hyphae through the epidermis. Melanin functions as an impermeable barrier to osmolytes, which allows appressoria to accumulate high turgor pressure. Deficiency of …
-
Barley growth, physiology, and forage quality as influenced by defoliation and water stress
… water potential (WP), solute potential (SP) or turgor pressure (TP). Water stress reduced plant height, leaf area, carbon exchange rate (CER) by more than 50%, WP, SP, total DM by more than 11%, and grain yields by more than 45% for all cultivars. It increased WUE and delayed anthesis of all …
-
Fabrication and osmosis-mediated dynamics of a plant-inspired, fluid-filled, soft actuator
… wall, and consequently changing the hydrostatic pressure in the cells. The presence of this hydrostatic pressure, also known as the turgor pressure, imparts structural stiffness to the plant tissue while a systematic control of the turgor pressure drives the macroscale motion. Some examples of …
-
Requirement and regulation of actin polymerization during endocytosis
… in yeast is to overcome the tremendous turgor pressure within the cell. I show that in certain mutants defective in actin polymerization, defects in endocytosis can be rescued by reducing turgor pressure. I also show that the cell wall does not contribute to forces required for endocytic …
-
THE ROLE OF PKS1 MEDIATED SECONDARY METABOLISM IN HOST PENETRATION AND COLONIZATION DURING RICE BLAST DISEASE
… IS FORMED IN THE APPRESSORIUM TO MAINTAIN A HIGH TURGOR PRESSURE THEREIN TO FACILITATE THE HOST PENETRATION. HOWEVER, OTHER MECHANISMS THAT ARE RELATED TO THE APPRESSORIAL PENETRATION REMAIN ELUSIVE. IN THIS STUDY, WE DESCRIBE A PKS1 (POLYKETIDE SYNTHASE) CONTAINING GENE CLUSTER, WHICH IS …
-
Increased expression of NADP malic enzyme in the guard cells of <i>Arabidopsis</i> plants
… malate synthesis within guard cells increases turgor pressure opening the stomata. Stomata close when K<sup>+</sup> and Cl- efflux out, and the cytosolic isoform of NADP ME convert malate to pyruvate. We hypothesize that stomatal closure can be controlled by increased NADP ME activity in guard …
-
Study of wound healing and the involvement of the cytoskeleton in Vaucheria longicaulis variety macounii
… is rapidly extruded from the wound site. Loss of turgor pressure, as observed by the appearance of plasmolysis, is observed along the length of the filament. In Stage 2, the wound healing vesicle is sealed off from the filament by the fusion of the plasma membrane and tonoplast at the wound site. …
-
Identification of novel components that connect cellulose synthases to the cytoskeleton
… determines the direction of growth by directing turgor pressure to points of expansion (Somerville et al., 2004). Hence, cellulose deficient mutants usually show cell and organ swelling due to disturbed anisotropic cell expansion (reviewed in Endler and Persson, 2011). How do cellulose …
-
The response of four ericaceous shrub species to multiple environmental resource variation
… their osmotic potential and water deficit at the turgor loss point seasonally, especially in low water treatments. Low soil water availability also reduced midday conductance and water potential in all four species. Rhododendron maximum and <i>R. catawbiense</i> were very conservative in their …
-
Characterizing the role of central carbon metabolism and cell wall stress responses in Bacillus subtilis cell wall synthesis
… prevents bacterial cell lysis due to internal turgor pressure. Additionally, the cell wall is the first line of defense against various external stresses. The mesh of peptidoglycan is a major component of bacterial cell wall that surrounds the outer membrane. The cell wall of the gram-positive …
-
Molecular mechanisms of salt and osmotic stress tolerance in Frankia strains isolated from Casuarina trees
… the ability of cells to maintain optimal turgor pressure and intracellular ionic concentration for growth and functioning. The nitrogen-fixing soil actinobacterium Frankia shows marked variability in its tolerance to salinity. When in a symbiotic association with actinorhizal plants, …
-
Impacts of Salinity on Germination, Growth, Oxalate and Inorganic Ion Relations
… increased stomatal resistance, and maintained turgor pressure. It also responded to soil-induced water stress by decreased plant water potential and increased stomatal resistance. The Saskatchewan populations had similar water relations in response to soil-induced or atmosphere-induced water …
-
A Multi-level Mechanical Study of Hypocotyl Growth in the Dark
… successfully simulated behaviours of cell size, turgor pressure and yield stress over time and it responded to simulated parameter changes (representing physical factors) reasonably well. The model performance was compared to experimental manipulations. A concept of ‘bond energy distribution’ was …
-
Elektrophysiologische Untersuchungen an einzelligen marinen Riesenalgen
… der Zellen wichtige hydrostatische Innendruck (Turgor) ständig kontrolliert werden. Die Applikation eines Ladungspulses resultierte bei Valonia utricularis und Ventricaria ventricosa in einer biphasischen Relaxation des Gesamt-membranpotentials, die durch die Summe zweier Exponentialfunktionen …