Systemic acquired resistance

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Notion

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Science and technology

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What Wikipedia says

Systemic acquired resistance (SAR) is a "whole-plant" resistance response that occurs following an earlier localized exposure to a pathogen.

Excerpt from the Wikipedia article “Systemic acquired resistance”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Infectiousdis, CC BY-SA 4.0, via Wikimedia Commons.