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phytoalexin

[ fahy-toh-uh-lek-sin ]

noun

, Biochemistry.
  1. any of a class of plant compounds that accumulate at the site of invading microorganisms and confer resistance to disease.

phytoalexin

/ ˌfaɪtəʊəˈlɛksɪn /

noun

  1. botany any of a group of substances produced by plants that inhibit the growth of pathogenic fungi that infect them

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Word History and Origins

Origin of phytoalexin1

First recorded in 1945–50; phyto- + alexin

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Word History and Origins

Origin of phytoalexin1

C20: from phyto- + Greek alexein to ward off

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phyto-phytobiology

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