[The influence of some elicitors on growth and morphogenesis of Hypericum perforatum callus cultures].

We studied the effects of elicitors, such as mannan, beta-1,3-glucan, ancymidol, and cork crumbs, on morphogenetic and biosynthetic potencies of shoot cultures of Hypericum perforatum L. In the presence of these elicitors, different morphogenetic structures of H. perforatum callus cultures were formed. A correlation was found between the morphogenetic processes and induction of hypericin and pseudohypericin biosynthesis in the callus cultures.

[Effects of acute psychogenic stress on the state of several functions of the visual analyzer]. / Vliianie ostrogo psikhogennogo stressa na sostaianie nekotorykh funktsii zritel'nogo analizatora.

Accommodation and binocular functions were examined after the earthquake of 1988 in 762 residents of Armenia who had not complained of their organ of vision before. Pseudo-myopia was detected in 30 percent of the examinees, concomitant strabismus in 4, and near-sight heterophoria in 4 percent. This permits a conclusion on the direct effect of an acute psychogenic stress during calamities on accommodation and binocular functions, particularly so in children.