National Bank for Industrial Microorganisms and Cell Cultures
Abstract
The influence of temperature stress and starvation for amino acids,
glucose and phosphates, on the heat resistance of mycelium and endo-
and aminopeptidase activity of Streptomyces hygroscopicus 155,
was studied. The strongest growth inhibition was determined at
temperature elevation from 30° to 39°C and at starvation for
amino acids. Also these stress treatments mostly induce the heat
resistance of the mycelium. A correlation between the intracellular
endo- and aminopeptidase activity and decrease in biomass yield was
registered. The process of catabolization of proteins, during the
adaptation to stress treatments, depends on energy and is stimulated by
the presence of Mg2+ ions