[Zeta-potential of n-alkane emulsion droplets and its role in substrate transport into yeast cells].
Zeta-potential of n-alkane droplets, formed by fatty acids, were studied in model systems of culture liquid of yeasts (Candida maltosa) capable of utilizing n-alkanes. The value of zeta-potential was found to depend on the droplet size. The negative zeta-potential of submicron droplets was so high that it prevented the droplets from being coagulated with cells possessing a high negative zeta-potential. The dominant role of submicron n-alkane droplets in the kinetics of yeast growth could be accounted for by the existence of a mechanism regulating contact interactions of individual cells with the droplets followed by uptake of the substrate.
Komarov
E V
EV
Research Institute of Antibiotics and Medical Enzymes, Ministry of Industry, Science, and Technology of the Russian Federation, St. Petersburg, 198020 Russia.
Ganin
P G
PG
D000473:Alkanes / Q000737:chemistry / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002175:Candida / Q000254:growth & development / Q000378:metabolism*; D003470:Culture Media / Q000737:chemistry; D004655:Emulsions / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism; D008433:Mathematics; D010316:Particle Size; D013379:Substrate Specificity; D013500:Surface Tension
D000473:Alkanes; D003470:Culture Media; D004655:Emulsions; D005227:Fatty Acids