Radiation-induced, irreparable, hereditary changes in cells promoting their neoplastic transformation

In experiments with model plant tumors (Kalanchoe-ti plasmid Agrobact. tumefaciens C-58D) it was shown that exposure of the recipient plant to low-level gamma-radiation of 2 Gy induced changes in cells that were not repaired over two months promoting tumoral transformations in them. Those changes were shown to persist in the offspring of the exposed somatic cells.