Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Tonicity in Plants00:53

Tonicity in Plants

60.6K
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.
60.6K
Tonicity in Plants01:20

Tonicity in Plants

36.2K
Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
36.2K
Osmotic Pressure01:26

Osmotic Pressure

50
Osmosis is a process where solvent molecules move toward a solution through a semipermeable membrane. As the solution dilutes due to the entry of solvent, it expands. This expansion increases the hydrostatic pressure of the solution. When the hydrostatic pressure equals the osmotic pressure, osmosis stops.Osmotic pressure, denoted by Π, is the minimum pressure needed to prevent the solvent from passing into the solution by osmosis. The van 't Hoff equation calculates the osmotic pressure...
50
Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

972
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
972
Aquaporins01:25

Aquaporins

6.8K
Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
6.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A master equation approach to actin polymerization applied to endocytosis in yeast.

PLoS computational biology·2017
Same author

Membrane bending by actin polymerization.

Current opinion in cell biology·2017
Same author

Actin-Regulator Feedback Interactions during Endocytosis.

Biophysical journal·2016
Same author

How capping protein enhances actin filament growth and nucleation on biomimetic beads.

Physical biology·2015
Same author

Feedback mechanisms in a mechanical model of cell polarization.

Physical biology·2014
Same author

Modeling large-scale dynamic processes in the cell: polarization, waves, and division.

Quarterly reviews of biophysics·2014
Same journal

Tau protein differentially affects Piezo1 and Kir2.1 channels in brain capillary endothelial cells.

Biophysical journal·2026
Same journal

Emergent Intercellular Junction Stability during Cyclic Tissue Loading.

Biophysical journal·2026
Same journal

Enhanced-Sampling Simulations Reveal Distinct Intermediates in SARS-CoV-2 FSE Pseudoknot Interconversion.

Biophysical journal·2026
Same journal

Structure-based simulations of the full Flock House virus capsid reveal pathways and energetics of an infection-critical peptide externalization event.

Biophysical journal·2026
Same journal

Quantifying the Peripheral Surface Information Entropy from Conformational Ensembles of Globular Protein-Peptide Complexes.

Biophysical journal·2026
Same journal

Anisotropic unbinding and location-dependent hovering of a kinesin motor head over microtubule.

Biophysical journal·2026
See all related articles

Related Experiment Video

Updated: Mar 9, 2026

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
08:55

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

Published on: April 24, 2020

3.9K

Local Turgor Pressure Reduction via Channel Clustering.

Jonah K Scher-Zagier1, Anders E Carlsson1

  • 1Department of Physics, Washington University, Saint Louis, Missouri.

Biophysical Journal
|December 22, 2016
PubMed
Summary
This summary is machine-generated.

Localized reduction of turgor pressure, facilitated by solute channels, can promote yeast endocytosis. This process is crucial for cellular function, especially when overcoming high internal pressure.

More Related Videos

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System
09:56

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System

Published on: December 23, 2022

2.2K
An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
04:32

An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

Published on: February 15, 2019

6.2K

Related Experiment Videos

Last Updated: Mar 9, 2026

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
08:55

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

Published on: April 24, 2020

3.9K
Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System
09:56

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System

Published on: December 23, 2022

2.2K
An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
04:32

An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

Published on: February 15, 2019

6.2K

Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • Yeast endocytosis relies on actin polymerization and curvature proteins.
  • These factors may not generate sufficient force to overcome turgor pressure.
  • Localized reduction of turgor pressure could facilitate endocytosis.

Purpose of the Study:

  • To investigate the potential for localized turgor pressure reduction to facilitate yeast endocytosis.
  • To numerically calculate the extent of turgor pressure reduction under specific conditions.
  • To identify key parameters governing turgor pressure reduction.

Main Methods:

  • Numerical calculation of turgor pressure reduction using the diffusion equation.
  • Legendre polynomial expansion for solving the diffusion equation.
  • Development of an approximate analytic theory for explicit formulas.

Main Results:

  • A region of increased permeability (45 nm radius) with 60 channels could reduce turgor pressure by 50%.
  • A key dimensionless parameter, p = P1a/D, was identified.
  • Turgor pressure reduction exceeds 50% when p > 0.44.

Conclusions:

  • Localized solute channel activity can significantly reduce turgor pressure, aiding endocytosis.
  • The findings provide explicit formulas for predicting turgor pressure reduction.
  • These mechanisms may also be relevant to endocytosis in plants.