Non-electrolyte permeability as a tool for studying membrane fluidity

Zoelen, E.J.J. van; Jesus, C. Henriques de; Jonge, Ed de; Mulder, MN Monique; Blok, M.C.; Gier, J. De

doi:10.1016/0005-2736(78)90271-7

Cited by 25 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Salt stress induces alterations in the PM permeability, which varying greatly between cultivars differing in salt tolerance (Zongli et al 1987;Mansour et al 1993;Mansour and Stadelmann 1994;Mansour 1995Mansour , 1997. PM permeability measurement probes alterations in PM lipid composition/structure (van Zoelen et al 1978;Stadelmann and Lee-Stadelmann 1989;Russell 1989;Mansour 1997). The role of PM lipids in salt tolerance comes from the fact that membrane lipids have great impact on the membrane functions either by changing the membrane fluidity and/or by direct interaction with the transport systems (Opekarova and Tanner 2003;Lee 2003).…”

Section: Introductionmentioning

confidence: 99%

NaCl-induced changes in plasma membrane lipids and proteins of Zea mays L. cultivars differing in their response to salinity

et al. 2007

View full text Add to dashboard Cite

Two contrasting maize (Zea mays L.) cultivars, i.e., Giza 2 (salt tolerant) and Trihybrid 321 (salt sensitive), were grown hydroponically to study NaCl effect (100 mM) on root plasma membrane (PM) lipid and protein alterations. The PM total sterols of Trihybrid 321 were decreased while that of Giza 2 was increased in response to salt. Salt imposition had no significant effect on PM total glycolipids and proteins of both cultivars. The PM total phospholipids were increased in Trihybrid 321 but it did not change significantly in Giza 2 after salinity stress. Molecular percentage of PM phospholipids and fatty acids of both cultivars was different in absence (0 mM) and presence (100 mM) of salt. The most abundant phospholipids in untreated Trihybrid 321 PM were phosphatidylglycerol (PG), phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylserine (PS), which changed into PG, PS, phosphatidylinositol (PI) and PC after salt treatment. However, the dominant phospholipids of the control PM of Giza 2 were PC, PE, PS and PG, which changed into PG, PE, PS and diphosphatidylglycerol (DPG) after salt imposition. Over 60% of the total fatty acids were saturated in control and salinized PM of both cultivars, which was increased after salt stress. The predominant fatty acid in the control and salinized PM of Trihybrid 321 was C18:1 and C17:0, respectively. However, in control and treated PM of Giza 2, the predominant fatty acid was C17:0 and C20:0, respectively. Qualitative and quantitative differences in PM protein patterns were found in both cultivars with and without salt. PM lipid changes enhanced membrane integrity, reflected in different ion accumulation (Mansour et al. 2005), and hence salt tolerance of Giza 2.

show abstract

Section: Introductionmentioning

confidence: 99%

NaCl-induced changes in plasma membrane lipids and proteins of Zea mays L. cultivars differing in their response to salinity

et al. 2007

View full text Add to dashboard Cite

show abstract

“…This is more noticeable when water is dragged by a permeant. Water dissolves in kinks affecting the density of the lipid matrix [ 41 , 57 , 72 ] and its dielectric properties due to solute penetration [ 53 , 74 ]. In this sense, both, open and non-autonomous systems are interrelated concepts.…”

Section: Unifying Membrane Approach With Water Colloid Systemsmentioning

confidence: 99%

Water as a Link between Membrane and Colloidal Theories for Cells

Disalvo¹,

Rosa²,

Cejas³

et al. 2022

Molecules

View full text Add to dashboard Cite

This review is an attempt to incorporate water as a structural and thermodynamic component of biomembranes. With this purpose, the consideration of the membrane interphase as a bidimensional hydrated polar head group solution, coupled to the hydrocarbon region allows for the reconciliation of two theories on cells in dispute today: one considering the membrane as an essential part in terms of compartmentalization, and another in which lipid membranes are not necessary and cells can be treated as a colloidal system. The criterium followed is to describe the membrane state as an open, non-autonomous and responsive system using the approach of Thermodynamic of Irreversible Processes. The concept of an open/non-autonomous membrane system allows for the visualization of the interrelationship between metabolic events and membrane polymorphic changes. Therefore, the Association Induction Hypothesis (AIH) and lipid properties interplay should consider hydration in terms of free energy modulated by water activity and surface (lateral) pressure. Water in restricted regions at the lipid interphase has thermodynamic properties that explain the role of H-bonding networks in the propagation of events between membrane and cytoplasm that appears to be relevant in the context of crowded systems.

show abstract

“…The permeation of a solute such as erythritol, glycerol or urea in isotonic conditions produces a water penetration along with the solute diffusion. As a result, a defined amount of water copermeates with the solute [110,111].…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%