title: [Nucleic acids during tumorous transformation in plants].
abstract: Crown-gall, one of the "plant cancer" is induced in the presence of a soil bacterium Agrobacterium tumefaciens which elaborates a Tumor inducing principle (T.I.P.), the nature of which is unknown. Several informations suggest that some DNA sequences of bacterial origin are included in tumorous cells of tissue cultures. A ribonuclease inhibits induction. An RNA extracted from Agrobacterium induces some hyperplasia transplantable by graft.
mesh_terms: D002471:Cell Transformation, Neoplastic / Q000187:drug effects*; D004269:DNA, Bacterial / Q000494:pharmacology*; D009693:Nucleic Acid Hybridization; D010941:Plant Tumors; D012329:RNA, Bacterial / Q000494:pharmacology*; D012231:Rhizobium; D012260:Ribonucleases / Q000494:pharmacology
chemical_list: D004269:DNA, Bacterial; D012329:RNA, Bacterial; D012260:Ribonucleases
vernacular_title: Les acides nucléiques au cours de la transformation tumorale chez les végétaux