Results 1 to 10 of about 38,790 (113)

Analyzing the effect of ion binding to the membrane-surface on regulating the light-induced transthylakoid electric potential (ΔΨm)

open access: yesFrontiers in Plant Science, 2022
The transthylakoid membrane potential (ΔΨm) is essential because it can drive the ATP synthesis through the CF0–CF1 type of ATP-synthase in chloroplasts as an energetic equivalent similar to ΔpH.
Hui Lyu, Dušan Lazár
doaj   +1 more source

Deciphering the Role of Ion Channels in Early Defense Signaling against Herbivorous Insects

open access: yesCells, 2021
Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them.
Akanksha Gandhi   +5 more
doaj   +1 more source

A Novel Cryptic Clostridial Peptide That Kills Bacteria by a Cell Membrane Permeabilization Mechanism

open access: yesMicrobiology Spectrum, 2022
This work reports detailed characteristics of the antimicrobial peptide Intestinalin (P30), which is derived from the LysC enzyme of Clostridium intestinale strain URNW. The peptide shows a broader antibacterial spectrum than the parental enzyme, showing
Monika Szadkowska   +14 more
doaj   +1 more source

Mitochondrial membrane potential [PDF]

open access: yesAnalytical Biochemistry, 2018
The mitochondrial membrane potential (ΔΨm) generated by proton pumps (Complexes I, III and IV) is an essential component in the process of energy storage during oxidative phosphorylation. Together with the proton gradient (ΔpH), ΔΨm forms the transmembrane potential of hydrogen ions which is harnessed to make ATP.
Ljubava D, Zorova   +11 more
openaire   +2 more sources

Different resting membrane potentials in posterior parietal cortex and prefrontal cortex in the view of recurrent synaptic strengths and neural network dynamics

open access: yesFrontiers in Cellular Neuroscience, 2023
In this study, we introduce the importance of elevated membrane potentials (MPs) in the prefrontal cortex (PFC) compared to that in the posterior parietal cortex (PPC), based on new observations of different MP levels in these areas. Through experimental
Minsu Yoo   +4 more
doaj   +1 more source

Calcium‐ and voltage‐driven atrial alternans: Insight from [Ca]i and Vm asynchrony

open access: yesPhysiological Reports, 2023
Cardiac alternans is defined as beat‐to‐beat alternations in contraction strength, action potential duration (APD), and Ca transient (CaT) amplitude. Cardiac excitation–contraction coupling relies on the activity of two bidirectionally coupled excitable ...
G. Kanaporis   +2 more
doaj   +1 more source

Lipophilic Cations Rescue the Growth of Yeast under the Conditions of Glycolysis Overflow

open access: yesBiomolecules, 2020
Chemicals inducing a mild decrease in the ATP/ADP ratio are considered as caloric restriction mimetics as well as treatments against obesity. Screening for such chemicals in animal model systems requires a lot of time and labor. Here, we present a system
Svyatoslav S. Sokolov   +7 more
doaj   +1 more source

Effect of sodium humate on membrane potential in internodal cells of Nitellopsis obtusa

open access: yesActa Societatis Botanicorum Poloniae, 2014
Membrane potential and resistance changes in Nitellopsis obtusa induced by Na-humate as a function of external pH were investigated. The administration of Na-humate at concentrations of 12.5, 25, 50 and 100 mg dm-3 brought about a hyperpolarization of ...
Maria Zientara
doaj   +1 more source

Effects of Matrix pH on Spontaneous Transient Depolarization and Reactive Oxygen Species Production in Mitochondria

open access: yesFrontiers in Cell and Developmental Biology, 2021
Reactive oxygen species (ROS) oxidize surrounding molecules and thus impair their functions. Since mitochondria are a major source of ROS, suppression of ROS overproduction in the mitochondria is important for cells.
Jannatul Aklima   +9 more
doaj   +1 more source

Light/Clock Influences Membrane Potential Dynamics to Regulate Sleep States

open access: yesFrontiers in Neurology, 2021
The circadian rhythm is a fundamental process that regulates the sleep–wake cycle. This rhythm is regulated by core clock genes that oscillate to create a physiological rhythm of circadian neuronal activity.
Masashi Tabuchi   +3 more
doaj   +1 more source

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