crown gall

Thân thiện

A gardener examines a crown gall on the stem of a young apple tree.

Definition

1. Noun:
   • A plant disease: "crown gall" is a bacterial disease that affects plants, particularly fruit trees like apples, peaches, and grapes, as well as roses. It causes the formation of tumor-like growths (galls) on the stem, typically near the soil line.

Usage Examples

• Noun:
  • The vineyard was affected by crown gall, threatening the grape harvest.
  • Gardeners should inspect the base of rose bushes for signs of crown gall.

Advanced Usage

• Scientific context: In phytopathology, "crown gall" is specifically caused by the bacterium .
  • The study focused on the mechanism by which the crown gall bacterium transfers DNA to the host plant.

Variants and Related Words

• Gall (n): In a botanical context, a gall is an abnormal growth on a plant.
• Agrobacterium tumefaciens (n): The scientific name for the bacterium that causes crown gall.

Synonyms

• Plant tumor: A general, non-technical term for an abnormal growth on a plant.
• Bacterial gall: A term specifying the cause of the gall formation.

Related Phrases

• Crown gall infection: Refers to the state of a plant being diseased by crown gall.
  • Preventing crown gall infection is crucial for orchard management.

Học thuật

Noun

1. a bacterial disease of plants (especially pome and stone fruits and grapes and roses) which forms excrescences on the stem near the ground