Effect of 1,3;1,6-β-D-glucan on Infection of Detached Tobacco Leaves with Tobacco Mosaic Virus

Glucan preparations were obtained by transformation of laniinaran frotn the alga Laminaria cichorioides with endo-^-1,3-glucanase from marine mollusks. These preparations, like those of other sources, have an inhibitory effect on tobacco mosaic virtis (TMV) infection of detached leaves oflocal and systetnic host tobacco plants