The proteins that enhance a plant's response to attack are called

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Pathogenesis-related (PR) proteins are involved in enhancing a plant's response to attack by pathogens, such as viruses, bacteria, fungi, and insects. These proteins are induced by pathogen attack and can inhibit pathogen growth, signal other defense responses, and even contribute to systemic acquired resistance. Expansins are proteins involved in cell wall expansion, antibiotics are chemicals produced by organisms to kill or inhibit the growth of other organisms, phytoalexins are chemical compounds synthesized by plants in response to stress, and local defenders is not a commonly used term in plant biology.

The Proteins That Enhance a Plant's Response to Attack Are