title: Ultrastructure of soybean nodules. II: deterioration of the symbiosis in ineffective nodules.
mesh_terms: D009940:Organoids / Q000648:ultrastructure; D010944:Plants / Q000382:microbiology / Q000648:ultrastructure*; D012231:Rhizobium / Q000254:growth & development / Q000648:ultrastructure*; D013025:Glycine max; D013559:Symbiosis