51Թ

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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

/ ˌڲɪəʊəˈɛɪ /

noun

  1. botany any of a group of substances produced by plants that inhibit the growth of pathogenic fungi that infect them
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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51Թ History and Origins

Origin of phytoalexin1

First recorded in 1945–50; phyto- + alexin
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51Թ History and Origins

Origin of phytoalexin1

C20: from phyto- + Greek alexein to ward off
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Example Sentences

Examples have not been reviewed.

“Polyphenols are antioxidants, given their name based on the number of phenols in their grouping,” explains Dr. Graf, “Resveratrol is a polyphenolic phytoalexin compound found in grapes, red wine and certain berries.”

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