#crown_gall__crowngall  a bacterial disease of plants (especially pome and stone fruits and grapes and roses) which forms excrescences on the stem near the ground
  supertype:  #plant_disease__plantdisease  a disease that affects plants
  subtype:  #hairy_root__hairyroot  a phase of crown gall (especially in apples) during which there is abnormal development of fine fibrous roots

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