What is abnormal swelling in a portion of a branch, leaf, root, or bud called?

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Multiple Choice

What is abnormal swelling in a portion of a branch, leaf, root, or bud called?

Explanation:
Abnormal swelling on a plant part is called a gall. A gall forms when certain organisms—such as gall wasps or mites, or sometimes bacteria, fungi, or nematodes—trigger a plant tissue response that causes the tissue to grow or proliferate into a swollen, tumor-like structure. These swellings can appear on branches, leaves, roots, or buds as the plant reacts to the invading organism or stimulus. This differs from canker, which is dead, sunken tissue on stems or bark; wilt, which is a loss of turgor causing drooping; and mosaic, which is a virus-caused pattern of discolored, mottled leaves.

Abnormal swelling on a plant part is called a gall. A gall forms when certain organisms—such as gall wasps or mites, or sometimes bacteria, fungi, or nematodes—trigger a plant tissue response that causes the tissue to grow or proliferate into a swollen, tumor-like structure. These swellings can appear on branches, leaves, roots, or buds as the plant reacts to the invading organism or stimulus.

This differs from canker, which is dead, sunken tissue on stems or bark; wilt, which is a loss of turgor causing drooping; and mosaic, which is a virus-caused pattern of discolored, mottled leaves.

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