1A bacterial disease of plants, especially fruit bushes and trees, which is characterized by large tumour-like galls on the roots and lower trunk.
- This disease is caused by the soil bacterium Agrobacterium tumefaciens.
- Cane blight and bacterial crown gall are two important pathogens of brambles that enter the plant almost exclusively through wounds.
- Other diseases include rust, crown gall, anthracnose and petal blight.
- It seems to be particularly effective in treating crown gall, a bacterial disease which can weaken or even girdle vines.
1.1 [count noun] A large tumour-like gall caused by crown gall disease.
- The plant pathogenic bacterium Agrobacterium tumefaciens induces tumours, called crown galls, on plants.
- Most crown galls are caused by the bacteria, but be aware that other things can look like them.
- Cane galls and crown galls can vary in size and are usually white or gray and brown.
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