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Stilbenoids are secondary products of heartwood formation in trees that can act as phytoalexins. Chemically they are hydroxylated derivatives of stilbene. Biochemically they belong to the family of phenylpropanoids and share most of their biosynthesis pathway with chalcones. 
Additional recommended knowledge
They have been suggested by some studies to be responsible for resistance to some tree diseases, such as pine wilt.
1. Hillis WE (1987) Heartwood and tree exudates. Springer, Berlin Heidelberg New York. 2. Yamada T, Ito S (1993) Chemical defense responses of wilt-resistant pine species, Pinus strobus and P. taeda, against Bursaphelenchus xylophilus infection. Ann Phytopathol Soc Jpn 59:666–672.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Stilbenoid". A list of authors is available in Wikipedia.