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Showing 1 to 12 of 58 entries
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Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling.

Frontiers in plant science

Pottosin I, Shabala S.
PMID: 24795739
Front Plant Sci. 2014 Apr 23;5:154. doi: 10.3389/fpls.2014.00154. eCollection 2014.

Polyamines are unique polycationic metabolites, controlling a variety of vital functions in plants, including growth and stress responses. Over the last two decades a bulk of data was accumulated providing explicit evidence that polyamines play an essential role in...

Phenotypic and Genomic Properties of Chitinispirillum alkaliphilum gen. nov., sp. nov., A Haloalkaliphilic Anaerobic Chitinolytic Bacterium Representing a Novel Class in the Phylum Fibrobacteres.

Frontiers in microbiology

Sorokin DY, Rakitin AL, Gumerov VM, Beletsky AV, Sinninghe Damsté JS, Mardanov AV, Ravin NV.
PMID: 27065971
Front Microbiol. 2016 Mar 31;7:407. doi: 10.3389/fmicb.2016.00407. eCollection 2016.

Anaerobic enrichment from sediments of hypersaline alkaline lakes in Wadi el Natrun (Egypt) with chitin resulted in the isolation of a fermentative haloalkaliphilic bacterium, strain ACht6-1, growing exclusively with insoluble chitin as the substrate in a sodium carbonate-based medium...

Cancer as a channelopathy: ion channels and pumps in tumor development and progression.

Frontiers in cellular neuroscience

Litan A, Langhans SA.
PMID: 25852478
Front Cell Neurosci. 2015 Mar 17;9:86. doi: 10.3389/fncel.2015.00086. eCollection 2015.

Increasing evidence suggests that ion channels and pumps not only regulate membrane potential, ion homeostasis, and electric signaling in excitable cells but also play important roles in cell proliferation, migration, apoptosis and differentiation. Consistent with a role in cell...

Electron transport phosphorylation in rumen butyrivibrios: unprecedented ATP yield for glucose fermentation to butyrate.

Frontiers in microbiology

Hackmann TJ, Firkins JL.
PMID: 26157432
Front Microbiol. 2015 Jun 24;6:622. doi: 10.3389/fmicb.2015.00622. eCollection 2015.

From a genomic analysis of rumen butyrivibrios (Butyrivibrio and Pseudobutyrivibrio sp.), we have re-evaluated the contribution of electron transport phosphorylation (ETP) to ATP formation in this group. This group is unique in that most (76%) genomes were predicted to...

Effect of temperature on water and ion transport in soybean and broccoli systems.

Plant physiology

Markhart AH, Fiscus EL, Naylor AW, Kramer PJ.
PMID: 16660920
Plant Physiol. 1979 Jul;64(1):83-7. doi: 10.1104/pp.64.1.83.

Steady-state flow rates and exudate osmotic potentials were measured from complete root systems from warm- (28/23 C) or cold-(17/11 C) grown soybean or broccoli (Brassica oleracea) plants at various pressures or different temperatures.In warm-grown soybean roots systems, a break...

Chlorophyll-Derivative Modulation of Rhodopsin Signaling Properties through Evolutionarily Conserved Interaction Pathways.

Frontiers in molecular biosciences

Woods KN, Pfeffer J, Klein-Seetharaman J.
PMID: 29312953
Front Mol Biosci. 2017 Dec 12;4:85. doi: 10.3389/fmolb.2017.00085. eCollection 2017.

Retinal is the light-absorbing chromophore that is responsible for the activation of visual pigments and light-driven ion pumps. Evolutionary changes in the intermolecular interactions of the retinal with specific amino acids allow for adaptation of the spectral characteristics, referred...

Ancient Living Organisms Escaping from, or Imprisoned in, the Vents?.

Life (Basel, Switzerland)

Jackson JB.
PMID: 28914790
Life (Basel). 2017 Sep 15;7(3). doi: 10.3390/life7030036.

We have recently criticised the natural pH gradient hypothesis which purports to explain how the difference in pH between fluid issuing from ancient alkali vents and the more acidic Hadean ocean could have driven molecular machines that catalyse reactions...

EDEn-Electroceutical Design Environment: Ion Channel Tissue Expression Database with Small Molecule Modulators.

iScience

Churchill CDM, Winter P, Tuszynski JA, Levin M.
PMID: 30590250
iScience. 2019 Jan 25;11:42-56. doi: 10.1016/j.isci.2018.12.003. Epub 2018 Dec 11.

The emerging field of bioelectricity has revealed numerous new roles for ion channels beyond the nervous system, which can be exploited for applications in regenerative medicine. Developing such biomedical interventions for birth defects, cancer, traumatic injury, and bioengineering first...

Light-Driven Active Ion Transport.

Chemistry (Weinheim an der Bergstrasse, Germany)

Yang J, Liu P, Li L, Tang Z.
PMID: 32428265
Chemistry. 2020 Nov 02;26(61):13748-13753. doi: 10.1002/chem.202001929. Epub 2020 Sep 17.

Solar energy can be harvested by biological systems to regulate the directional transport of protons and ions across cells and organelles. Structural and functional bio-mimic photo-active ion nanofluidic conductors, usually in the forms of ion channels and ion pumps,...

Measurements of the self-sustained enhancement of field emission by carbon fiber microemitters.

Ultramicroscopy

Mousa MS, Hagmann MJ, Brugat M, Sheshin EP.
PMID: 12535554
Ultramicroscopy. 2003 May-Jun;95(1):119-24. doi: 10.1016/s0304-3991(02)00306-6.

Two types of self-sustained enhancement in field emission by carbon fibers are described. In the first, the field is increased until the emission current switches from zero to between 1 and 10 microA. Next the field is reduced, but...

General and specific interactions of the phospholipid bilayer with P-type ATPases.

Biophysical reviews

Hossain KR, Clarke RJ.
PMID: 31073955
Biophys Rev. 2019 Jun;11(3):353-364. doi: 10.1007/s12551-019-00533-2. Epub 2019 May 09.

Protein structure and function are modulated via interactions with their environment, representing both the surrounding aqueous media and lipid membranes that have an active role in shaping the structural topology of membrane proteins. Compared to a decade ago, there...

Polymeric Ion Pumps: Using an Oscillating Stimulus To Drive Solute Transport in Reactive Membranes.

Langmuir : the ACS journal of surfaces and colloids

Benavides S, Qu S, Gao F, Phillip WA.
PMID: 29533638
Langmuir. 2018 Apr 17;34(15):4503-4514. doi: 10.1021/acs.langmuir.8b00193. Epub 2018 Apr 03.

The development of membranes that separate molecules on the basis of chemical factors, rather than physical factors, is one promising approach to meeting the demand for membranes that are more selective. In this study, the design of multifunctional, pH-responsive...

Showing 1 to 12 of 58 entries