Results 31 to 40 of about 117,397 (279)

Cell-compatible isotonic freezing media enabled by thermo-responsive osmolyte-adsorption/exclusion polymer matrices

open access: yesCommunications Chemistry, 2023
During the long-term storage of cells, it is necessary to inhibit ice crystal formation by adding cryoprotectants. Non-cell-permeable cryoprotectants have high osmotic pressure which dehydrates cells, indirectly suppressing intracellular ice crystal ...
Yui Kato   +13 more
doaj   +1 more source

Metabolomics demonstrates divergent responses of two Eucalyptus species to water stress [PDF]

open access: yes, 2011
Past studies of water stress in Eucalyptus spp. generally highlighted the role of fewer than five “important” metabolites, whereas recent metabolomic studies on other genera have shown tens of compounds are affected.
Cano, Francisco J. (R18662)   +9 more
core   +2 more sources

Root Osmotic Adjustment under Osmotic Stress in Maize Seedlings 1. Transient Change of Growth and Water Relations in Roots in Response to Osmotic Stress

open access: yesPlant Production Science, 2006
The transient changes in seminal root elongation rate, osmotic potential, water potential, and turgor pressure in maize after the onset of stress treatments were examined using polyethylene glycol 6000 to evaluate the process of osmotic adjustment in ...
Atsushi Ogawa, Akira Yamauchi
doaj   +1 more source

Speed effects in gliding motility assays due to surface passivation, water isotope, and osmotic stress. [PDF]

open access: yes, 2010
The molecular motor kinesin-1, an ATPase, and the substrate it walks along, microtubules, are vital components of eukaryotic cells. Kinesin converts chemical energy to linear motion as its two motor domains step along microtubules in a process similar to
Steven J. Koch   +2 more
core   +2 more sources

Effects of osmotic pressure on motility, plasma membrane integrity and viability in fresh and frozen-thawed buffalo spermatozoa

open access: yesAnimal, 2008
In the first experiment, osmotic pressure of semen and seminal plasma in a semen sample from each of the 20 mature Nili-Ravi buffalo bulls was determined. In the second experiment, effects of osmotic pressure on motility (%), plasma membrane integrity (%)
M.I.R. Khan, A. Ijaz
doaj   +1 more source

Measuring very negative water potentials with polymer tensiometers: principles, performance and applications [PDF]

open access: yes, 2009
In recent years, a polymer tensiometer (POT) was developed and tested to directly measure matric potentials in dry soils. By extending the measurement range to wilting point (a 20-fold increase compared to conventional, water-filled tensiometers), a ...
van der Ploeg, Martine J.   +25 more
core   +1 more source

Increased xerotolerance of Saccharomyces cerevisiae during an osmotic pressure ramp over several generations

open access: yesMicrobial Biotechnology, 2021
Summary Although mechanisms involved in response of Saccharomyces cerevisiae to osmotic challenge are well described for low and sudden stresses, little is known about how cells respond to a gradual increase of the osmotic pressure (reduced water ...
Stéphane Guyot   +11 more
doaj   +1 more source

Membrane Permeability Threshold for Osmotic Power Plant Efficiency

open access: yesJournal of Contemporary Urban Affairs, 2017
In a context of ever-growing electricity consumption and need for less polluting sources of energy, salinity gradient power (SGP) based on osmosis is a promising technology. Salinity difference between two solutions separated by a semi-permeable membrane
A Berger   +4 more
doaj   +1 more source

The Balance of Fluid and Osmotic Pressures across Active Biological Membranes with Application to the Corneal Endothelium. [PDF]

open access: yesPLoS ONE, 2015
The movement of fluid and solutes across biological membranes facilitates the transport of nutrients for living organisms and maintains the fluid and osmotic pressures in biological systems. Understanding the pressure balances across membranes is crucial
Xi Cheng, Peter M Pinsky
doaj   +1 more source

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