Variabilitatea statutelor biochimice ale partenerilor sistemului ,,parazit-gazdă” [Articol]

Abstract

The prospects of studying amino acids in the “parasite-host” system are conditioned by the possibility of experimentally reproducing environmental conditions. This would allow identifying changes in the set of amino acids, changes that would proportionally reflect the changes that occurred in the culture medium. Another problem that deserves all attention is the elucidation of the mechanism of absorption of some amino acids by tissue parasites. It was found that the host and the tissue parasite present significant differences between the sets of free amino acids in their organisms. The parasite selectively absorbs, first of all, the indispensable amino acids, the share of which in the organism of the parasitized host is diminished to the highest degree. Therefore, parasitized hosts present significant decreases in the share of essential amino acids, in relation to non-parasitized hosts. The values of the sums of the entropies of the sets of free amino acids tend to increase in infected hosts in relation to uninfected ones. This is due to the decrease in the proportion of some amino acids as a result of selective absorption by the parasite.