Purified 1′acetoxychavicol acetate (1′ACA) from galangal spice affects membrane fatty acid composition and triggers a cell envelope stress response in Staphylococcus aureus

2012 ◽  
Vol 39 (3) ◽  
pp. 269-271 ◽  
Author(s):  
Nimsha S. Weerakkody ◽  
William M. Smith ◽  
Deirdre Mikkelsen ◽  
Jennifer Waanders ◽  
Graham Kerven ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Stress Response ◽  
Acid Composition ◽  
Cell Envelope ◽  
Membrane Fatty Acid ◽  
Membrane Fatty Acid Composition ◽  
Envelope Stress ◽  
A Cell

scholarly journals Investigating Acid Stress Response in Different Saccharomyces Strains

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Rogelio Lopes Brandão ◽  
Júlio César Câmara Rosa ◽  
Jacques Robert Nicoli ◽  
Marcos Vinicius Simi Almeida ◽  
Ana Paula do Carmo ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Stress Response ◽  
Acid Composition ◽  
Acid Stress ◽  
Yeast Cells ◽  
Acidic Ph ◽  
Membrane Fatty Acid ◽  
Membrane Fatty Acid Composition ◽  
Acid Stress Response

Yeast cells need to respond to a variety of stresses found in such different conditions as gastrointestinal tract after probiotic ingestion or fermentation vat during ethanol production. In the present study, H+ neutralisation capacity, membrane fatty acid composition, H+-ATPase activity, and cytosolic Ca2+ concentration were evaluated in yeast cells used for probiotic (Saccharomyces boulardii) and laboratory (Saccharomyces cerevisiae W303) purposes, as well as in some W303 mutant strains for ENA1 gene and S. cerevisiae BY4741. Results show that the H+ internal concentration of yeast is regulated by several systems, including the plasma membrane H+-ATPase, and that Ena1p has an important but undefined role in the cellular response to acid. Membrane fatty acid composition of S. cerevisiae W303 strain was affected by exposure to acidic pH, but the presence of 86 mM NaCl prevented this effect, whereas membrane fatty acid composition of S. boulardii was unaffected by acidic pH. We also demonstrated that the acid stress response is dependent on calcium metabolism and blocked by FK 506.

scholarly journals Identification of Novel Genetic Determinants of Erythrocyte Membrane Fatty Acid Composition among Greenlanders

PLoS Genetics ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. e1006119 ◽  
Author(s):  
Mette Korre Andersen ◽  
Emil Jørsboe ◽  
Camilla Helene Sandholt ◽  
Niels Grarup ◽  
Marit Eika Jørgensen ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Erythrocyte Membrane ◽  
Acid Composition ◽  
Membrane Fatty Acid ◽  
Genetic Determinants ◽  
Membrane Fatty Acid Composition
Sign in / Sign up

Export Citation Format

Share Document