title: Swelling forms on roots of berseem-clover (Trifolium alexandrinum), caused by a strain of Rhizobium trifolii.
mesh_terms: D000166:Acridines / Q000494:pharmacology; D004534:Egypt; D007210:Indoleacetic Acids / Q000494:pharmacology; D009154:Mutation; D009604:Nitrosoguanidines / Q000494:pharmacology; D063245:Plant Development; D010937:Plant Growth Regulators / Q000494:pharmacology; D012231:Rhizobium / Q000187:drug effects / Q000254:growth & development*; D012988:Soil Microbiology; D014364:Tryptophan / Q000494:pharmacology
chemical_list: D000166:Acridines; D007210:Indoleacetic Acids; D009604:Nitrosoguanidines; D010937:Plant Growth Regulators; D014364:Tryptophan