[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.
Research Institute of Antibiotics and Medical Enzymes, Ministry of Industry, Science, and Technology of the Russian Federation, St. Petersburg, 198020 Russia.
E V
EV
Komarov
P G
PG
Ganin
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