• Accumulation of soluble leaf carbohydrate in water stressed leaves may help mite injured leaves maintain cell turgor pressure through an osmotic adjustment (osmoregulation) mechanism. (uspest.org)
  • As confirmed in the present research, PRD not only induced osmotic adjustment, whereby the leaf turgor potential maintained higher than usual, but also strengthened the tomato plant resistance to leaf blights. (wflpublisher.com)
  • Response of coleoptiles to water deficit: growth, turgor maintenance and osmotic adjustment in barley plants (Hordeum vulgare L. (scirp.org)
  • Open-grown dipterocarps that experience greater water deficiency develop drought-adapted leaves that are capable of maintaining positive turgor through osmotic adjustment. (elsevierpure.com)
  • This is crucial during drought stress because healthy turgor pressure is necessary for plant and cell structure. (utkarshbitla.com)
  • We examined the predicted leaf water potential at the turgor loss point to estimate drought tolerance among several species of hickories and pecans adapted to growing in northern climates in the United States. (ashs.org)
  • The leaf water relations of well watered and shaded small seedlings in nursery and exposed trees of some dipterocarps were studied to assess tolerance and adaptability to drought using the pressure-volume technique. (elsevierpure.com)
  • The pressure-volume (P-V) curve analysis showed that the osmotic potential in symplasm at fully turgid status was lower and consequently the leaf turgor potential was higher in tomato leaves of PRD-treated plants than in the control plants. (wflpublisher.com)
  • Predicted mean leaf turgor loss measured in summer across species was −3.38 MPa. (ashs.org)
  • exhibited the lowest mean summer leaf turgor loss point −3.64 MPa), whereas pignut hickory [ Carya glabra (Mill. (ashs.org)
  • Leaf water potential at which leaf cells lose turgor initially and osmotic potential at full turgor were lower in the exposed trees than in the nursery seedlings. (elsevierpure.com)
  • Moreover, the turgor pressure of a plant cell is regulated by the amount of solute in the cell and the opening and closing of stomata. (sekimo.com)
  • The water to be purified is placed in a chamber and put under an amount of pressure greater than the osmotic pressure exerted by the water and the solutes dissolved in it. (wikipedia.org)
  • The potential of water to absorb solutes is known as osmotic potential (Pss). (sekimo.com)
  • On the other hand, increasing the tissue's osmotic pressure enables the explant to intake water, all solutes and growth regulators from the growth medium which results in high-frequency shoot regeneration. (intechopen.com)
  • This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic. (wikidoc.org)
  • The concentration of chemicals inside the bacterial cytoplasm generates an osmotic pressure, termed turgor, which inflates the cell. (biofizika.hr)
  • The Ps of surrounding solution and cytoplasm are determined by physical pressure, which impacts the direction of water movement. (sekimo.com)
  • Jacobus van 't Hoff found a quantitative relationship between osmotic pressure and solute concentration, expressed in the following equation: Π = i c R T {\displaystyle \Pi =icRT} where Π {\displaystyle \Pi } is osmotic pressure, i is the dimensionless van 't Hoff index, c is the molar concentration of solute, R is the ideal gas constant, and T is the absolute temperature (usually in kelvins). (wikipedia.org)
  • Potential osmotic pressure is the maximum osmotic pressure that could develop in a solution if it were separated from its pure solvent by a semipermeable membrane. (wikipedia.org)
  • The compartment containing the pure solvent has a chemical potential of μ 0 ( p ) {\displaystyle \mu ^{0}(p)} , where p {\displaystyle p} is the pressure. (wikipedia.org)
  • Within membrane bound volume of mass, build up and break down mechanism through anabolism and catabolism of metabolic energy causes a change in the amount of mass per unit volume at particular instant leading to contraction out of gravitational potential energy and relaxation due to inertia plus kinetic energy of metabolic activity, develops pressure with gain or release of temperature. (webmedcentral.com)
  • Yet, ITV remains rarely quantified for many ecophysiological traits typically assessed for species means, such as pressure volume (PV) curve parameters including osmotic potential at full turgor and modulus of elasticity, which are important in plant water relations. (nsf.gov)
  • A higher turgor potential would enhance water uptaking by a plant cell. (sekimo.com)
  • The presence of a low water potential affects the cell's turgor pressure, resulting in reduced water uptake. (sekimo.com)
  • The turgor potential of a plant cell can be increased to enhance water uptake. (sekimo.com)
  • A plant cell's osmotic potential is important for the proper growth of a plant. (sekimo.com)
  • A low osmotic potential is detrimental to plant growth. (sekimo.com)
  • Both osmotic potential and relative water content at the point of incipient plasmolysis were lower, suggesting a higher stress resistance, in tomato leaves in PRD treatment. (wflpublisher.com)
  • These results indicate that the capacity of leaves to maintain positive turgor is relatively low in nursery seedlings. (elsevierpure.com)
  • As a result of the high turgor pressure, water and sugars move into the sink tissues (e.g. the roots, growing tips of stems and leaves, flowers and fruits). (studynavigators.com)
  • The concentration of sugars in the solution decreases as the water influx from the xylem drops, resulting in low pressure in the phloem at the sink. (studynavigators.com)
  • The blue dots represent particles driving the osmotic gradient. (knowpia.com)
  • A technique called atomic force microscope (AFM) can measure the turgor pressure of various organisms. (sekimo.com)
  • Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. (wikipedia.org)
  • 물의 유입으로 원형질막(plasma membrane)이 세포벽(cell wall)을 누르게 되는데 이때 발생하는 힘을 팽압(turgor pressure)이라고 합니다. (jove.com)
  • In bacteria, these channels directly sense the increased membrane tension caused by the enhanced turgor levels upon hypoosmotic shock. (bvsalud.org)
  • [8] Osmotic pressure is defined as the external pressure required to be applied so that there is no net movement of solvent across the membrane. (knowpia.com)
  • Assuming the membrane does not break, this net flow will slow and finally stop as the pressure on the solution side becomes such that the movement in each direction is equal: dynamic equilibrium. (wikidoc.org)
  • In Escherichia coli, a sudden increase in external concentration causes a pressure drop across the cell envelope, followed by an active recovery. (biofizika.hr)
  • The linear relation between the pressure measured with this device and the sucrose concentration were the experimental impetus for deriving vant Hoffs law. (tutordale.com)
  • 4. By means of aphid stylets, Weatherley (1959) found that sieve tubes contained a concentrated solution of organic substances under a pressure. (biologydiscussion.com)
  • Chelated boron and other minerals fortify cell walls, improving the plant's capacity to endure fluctuations in turgor pressure brought on by stress. (utkarshbitla.com)
  • Used for storage (water, oil), maintains osmotic balance and cell shape. (kembrel.com)
  • Some kinds of osmotic flow have been observed since ancient times, e.g., on the construction of Egyptian pyramids. (knowpia.com)
  • A pressure flow hypothesis explains the next step, the translocation of photoassimilates. (studynavigators.com)
  • I will then move on to look at the cell volume and shape recovery that follows the pressure drop. (biofizika.hr)
  • He noted that the volume in the wine chamber increased and, if this chamber was closed, a pressure developed. (tutordale.com)
  • This increases the total volume of water inside the cell, which exerts outward pressure. (sekimo.com)