[Effect of decapitation on the systemic acquired resistance of hypersensitive tobacco mosaic virus].

The decapitation depressed the development of the system acquired resistance to reinfection with tobacco mosaic virus in the leaves of hypersensitive tobacco plants Nicotiana tabacum L. (v. Xanthi nc) and in protoplasts, isolated from these leaves.

[Effect of the physico-chemical form and storage time of ferriferrocyanides on the sorption of cesium-137 in the digestive tract].

In consequence of the test of Ferriferrocyanide efficiency under the intoxication of white rats by 137Cs the dependence of its sorption effect on the chemical form, production process and the degree of dispersion of the preparation is demonstrated. Maximum efficiency has been determined in Ferriferrocyanides when their degree of dispersion is 0.02-0.