Specific immunity usually leads to the hypersensitive response

Many signaling pathways and plant responses are shared between general and specific immunity, although in the latter these responses are accelerated and amplified. Furthermore, specific immunity usually leads to a form of programmed cell death called the hypersensitive response. When this occurs, plant cells at and near the site of pathogen infection die, forming a necrotic lesion. This cell death deprives the pathogen of nutrients and prevents the spread of the infection. The rest of the plant remains pathogen-free.

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