Membrane Fatty Acid Replacements and their Effect on Growth and
comprise over 45% of the fatty acids in the phospholipids. The fatty acid ... fluidity in a membrane-related process. ... plicating membrane fluidity in a physiological process. ... about 10% of the exogenous fatty acid added to the growth medium.
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Membrane Disruption by Antimicrobial Fatty Acids Releases Low
Apr 30, 2012 ... gosine, and acyl-amines blocked growth by the same mechanisms. Nontoxic 18: 1 9 ... fluidity due to the incorporation in unsaturated fatty acids in phospholipid ... porates exogenous fatty acids into membrane phospholipids (1, 3,. 4, 41) and that ... impact of extracellular fatty acids on S. aureus physiology.
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Effect of supplementation with exogenous fatty acid on the biological
the growth medium with cis-unsaturated fatty acids but not trans-unsaturated ones ... fluidity of the cell membrane the fatty acids used in the study varied in their chain .... presented in table 3 indicate that phospholipid content is very low in cells ...
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Effect of cis and trans unsaturated fatty acids on the transport - IAS
Protein: phospholipid ratio of the membrane also varies significantly ... carried out to investigate the effect of membrane fluidity on membrane function ... transport of exogenous uridine is very much dependant on the fatty acid composi- ... membrane has been altered by supplying different fatty acids to the growth media of.
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Full Text (PDF)
3115-3119, August 1974. Membrane Fatty Acid Replacements and Their Effect on Growth and ... comprise over 45% of the fatty acids in the phospholipids. The fatty acid ... exogenous supply of selected lipids, particularly those that are not favorable ... brane lipid composition and for assessing the role of fluidity in membrane ...
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unsaturated fatty acid for growth has made possible - Europe PMC
The effect of exogenous unsaturated fatty acids on the fatty acid composition of ... membrane lipids and proteins and their interactions which are essential for mem- ... fatty acid composition of phospholipids of OL2 when growth of the auxotroph ..... compensate for changes in fluidity or packing of the unsaturated fatty acid.
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Thermal regulation of membrane lipid fluidity by a twocomponent
fatty acid composition in bacteria by a decrease in growth temperature. We take advantage of the well ... Keywords: Cold shock, transcriptional regulation, membrane fluidity, signal transduction. ... increasing the fraction of unsaturated phospholipid (PL) .... When the effect of exogenous fatty acids on des expres- sion was ...
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The Effects of Membrane Fatty Acid Modification of Clonal
composition of the cells was modified by growth in the ... analysis of total phospholipid fatty acid composition. ... the effects of exogenous fatty acids on the membrane lipid ...... phospholipid fatty acyl composition and membrane fluidity in.
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Bacterial membranes and lipid packing theory - The Journal of Lipid
that are either natural fatty acid auxotrophs or utilize exogenous fatty acids when ... class composition is also affected by growth temperature in both groups of ... Supplementary key wodn phospholipids gram-negative bacteria .... and the effects of these lipids on the phase behavior of ..... The control of membrane fluidity in.
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Membrane fluidity and its roles in the perception of environmental
The effects of changes in temperature on membrane fluidity have been ... When phospholipid vesicles were exposed to hyperosmotic stress that was due to the ... Thus, the unsaturation of fatty acids increases membrane fluidity, and such an ... of a small portion of plasma-membrane lipids at the optimal growth temperature ...
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A System for Manipulating the Membrane Fatty Acid Composition of
BASIC PARAMETERS AND EFFECTS ON CELL GROWTH. Received for ... poration of large amounts of exogenous fatty acids into membrane lipids, although cells .... 3 Abbreviations: NL, neutral lipids; PL, phospholipids; GL, glycolipids;. RPTLC ...... variation in membrane fluidity was tolerable, as it has been shown in other ...
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Perspectivesin CancerResearch Biological and Therapeutic
The membrane fatty acid composition of cancer cells can be modified either in culture or during ... of the neoplastic cell may change sufficiently to alter its growth . Received 3/19/87; ... phospholipid fatty acid composition can be produced in Ehrlich ..... contrast, no plasma membrane fluidity effects were observed when EL -4 ...
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Growth-Environment Dependent Modulation of - bioRxiv
Apr 5, 2016 ... branched-chain fatty acids (BCFAs), which increase membrane fluidity ... determined by the fatty acyl residues of membrane phospholipids and glycolipids [4, 5]. The. 58 lipid acyl chains influence membrane viscosity/fluidity, and impact ...... Exogenous fatty acids can also be elongated by the FASII pathway.
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Molecular Control of Membrane Properties During Temperature
the membrane-fluidizing effect of the incorporated exogenous acids by ... 100- min incubation at 39.5 OC, aliquots of the growth medium were removed for analysis ... FATTY ACID DESATURASE REGULATION BY MEMBRANE FLUIDITY. TABLE I: ... into phospholipids of fed cells by 100 min (this accounted for. 33.6% of the ...
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Glycerol in Escherichia colt - Microbiology
The Effect of Alterations in the Fluidity and Phase State of the ... markedly dependent on membrane lipid fatty acid and sterol composition (McElhaney et al. , ... liposomes prepared from a variety of synthetic and natural phospholipids ( Demel et al., 1968; .... presence of glycerol plus various exogenous unsaturated fatty acids.
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Essential fatty acids in early life: structural and - Cambridge Journals
Jul 2, 1999 ... Essential fatty acids (EFA) are structural components of all tissues and .... tissue phospholipid-AA and -DHA decrease while n-9 and ... membranes and organelles, may affect membrane fluidity ... (c-fos and Erg-1) which modulate cell growth and ..... to exogenous fatty acids has also been investigated (Love.
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adaptation and regulation of fatty acid composition in - RUcore
higher levels of double bonds in membrane lipids, which is consistent with induced ..... Effects of Exogenous Fatty Acids on Growth at 15oC………………… …..58 ..... The fatty acyl composition of phospholipid bilayers is a major determinant of the ... exhibit a higher level of lipid mobility, or fluidity, at a given temperature than ...
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Adaptation of MembraneLipids to Alcohols - NCBI
Aug 18, 1975 ... The effects of alcohols of different chain lengths on the fatty acid composition of Escherichia coli ... in the degree of membrane fluidity are the.
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molecular aspects of the plasma membrane in tumor cells
well as on the fatty acid composition of phospholipids.3. -Z. 4 .... It is well known that fluidity of the plasma membrane is largely dependent on its lipid compo- sition and cholesterol ... may have an inhibitory effect on cell growth. ..... were as follows: (1) When cells were incubated with exogenous fatty acid ester for 10 h, the.
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Essential fatty acids in visual and brain development | SpringerLink
Essential fatty acids are structural components of all tissues and are indispensable for cell ... DHA also has significant effects on photoreceptor membranes and .... (2001) Growth and Development in Preterm Infants Fed Long -Chain ... Phospholipid Fatty Acids as Markers of Dietary Omega-3 Fatty Acid Intake, Am. J. Clin.
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