Saline Tolerance
Saline Tolerance - Related Videos
01:17
Salinity Tolerance of Alishewanella Species Isolated from Seawall Muddy Water
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2025
Begin with a culture of Alishewanella, a Gram-negative, salt-tolerant bacterium.Next, streak the culture onto agar plates containing increasing concentrations of sodium chloride to simulate varying levels of saline stress.Overlay each plate with a layer of unsolidified medium to prevent oxygen diffusion and maintain the culture in an oxygen-limited environment.Seal and incubate the plates at an optimum temperature to support bacterial growth.During incubation, the bacterium exhibits varying...
03:15
A Hypertonic Saline Injection Technique for Inducing Glaucoma in Rats
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2025
This video demonstrates glaucoma induction in an anesthetized rat by injecting hypertonic saline into the episcleral vein. The saline enters the trabecular meshwork via Schlemm's canal, causing tissue scarring, which blocks aqueous humor outflow and raises intraocular pressure. The elevated pressure damages retinal ganglion cells, leading to glaucoma.
07:23
Assessment of Morphine-induced Hyperalgesia and Analgesic Tolerance in Mice Using Thermal and Mechanical Nociceptive Modalities
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Cited by 41 •
2014
We describe a protocol to examine the development of opioid-induced hyperalgesia and tolerance in mice. Based on the measurement of thermal and mechanical nociceptive responses of naïve and morphine-treated animals, it allows to quantify the increase in pain sensitivity (hyperalgesia) and decrease in analgesia (tolerance) associated with chronic opiate administration.
08:22
Remotely Supervised Transcranial Direct Current Stimulation: An Update on Safety and Tolerability
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Cited by 52 •
2017
This manuscript provides an updated remote supervision protocol that enables participation in transcranial direct current stimulation (tDCS) clinical trials while receiving treatment sessions from home. The protocol has been successfully piloted in both patients with multiple sclerosis and Parkinson's disease.
06:59
Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
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Cited by 7 •
2016
The goal of this protocol is to present a standard method to perform intravenous glucose tolerance tests (IVGTTs) to assess glycemic control in nonhuman primates and assess their metabolic status from healthy to dysmetabolic.
FAQs
Osmotic stress acts early by limiting water uptake, whereas ion toxicity develops when sodium and chloride accumulate inside tissues or cells. A tolerant organism must therefore address both water-balance and ion-balance problems. Studying these effects separately helps explain why one response may preserve hydration while another protects cellular components from harmful salt concentrations.
Saline tolerance depends on several complementary transport strategies. Ion exclusion limits the entry or movement of sodium and chloride, selective transport favors useful ion distributions, and cellular sequestration stores excess ions away from sensitive sites. Comparing these strategies clarifies that tolerance is not a single pathway, but a coordinated set of controls over where salt moves and accumulates.
Compatible solutes help maintain cellular stability during salt exposure without disrupting normal biochemical functions. Their protective role extends to proteins and membranes, allowing cells to withstand the stress associated with elevated salinity. This mechanism complements ion regulation: transport processes control salt distribution, while compatible solutes help preserve the structures and molecules that salt stress can threaten.
When comparing saline tolerance across organisms, researchers can examine how each handles water uptake, sodium and chloride accumulation, ion movement, and protection of proteins and membranes. These features connect survival and function with underlying mechanisms. Comparisons can include plants and microorganisms, helping identify whether tolerance relies mainly on exclusion, sequestration, selective transport, compatible solutes, or combinations.
Saline tolerance research supports crop improvement by highlighting genes and traits associated with stress resilience. Those biological features can guide efforts to develop crops better suited to salt-affected conditions and support stress-resilient agriculture. The emphasis is not only on survival, but also on maintaining function when elevated salinity limits water uptake or promotes ion accumulation.
Studying saline tolerance helps explain how plants and microorganisms persist in coastal soils, saline waters, and changing ecosystems. The same mechanisms that protect cells from osmotic stress and ion toxicity can influence which organisms remain functional as salinity changes. This ecological context connects cellular responses with broader questions about adaptation and ecosystem change.