Fungi are extremly diverse and beneficial organisms both for environment industry; thus we obliged to secure it’s biodiversity. There several laboratory methods fungi longterm preservation. The main goal is their vitality biological properties. Some of them simple but the same time laborious, other demand specific equipment. Among most popular find: freez-drying, cryopreservation at –80°C in li...

When cultured human lymphocytes (IM-9) are exposed to 10(-6) M procine insulin for 6 h, washed, and incubated with 125I-insulin, the ability of the cell to bind the labelled hormone is reduced by a mean of 78%. Under these experimental conditions that induce insulin-receptor loss in this cell there is a mean 95% increase in microinvaginations in the plasma membrane revealed by electron microsco...

A convenient m ethod is presented for estimating isotope effects in reactions which yield waterto The water-t is separated by freez e!=h~yjng, and k*/k is calculated froJ? .t!J.e extent of the reaction and the ratio of the radioactIvIty of t he water-t to that of the lnItlal reactant. Application of the method to the oxidation of aJdoses-1-t at 25°C with iodine in a lkaline solution gives value...