ARS | Publication request: The Effect of Chemical Systemic Acquired Resistance Elicitors on Oat Avenanthramide Biosynthesis

Submitted to: American Oat Workers Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: March 2, 2010
Publication Date: April 19, 2010
Citation: Wise, M.L. 2010. The Effect of Chemical Systemic Acquired Resistance Elicitors on Oat Avenanthramide Biosynthesis [abstract]. In: American Oat Workers Conference Proceedings, April 17-21, 2010, Baton Rouge, Louisiana. p. 4.

Technical Abstract: Abstract. Oats produce a group of phenolic antioxidants termed “avenanthramides”. These metabolites are, among food crops, unique to oats. They are known to be potent antioxidants and have shown certain desirable nutritional characteristics such as inhibiting atherosclerotic plaque formation and reducing exercised induced inflammation in experimental systems. Although produced constitutively in the oat grain, the levels of avenanthramides tend to be highly variable in the oat crop and these levels appear to be strongly influenced by environment, genotype and genotype × enviroment interactions. Recent work in my laboratory has shown that avenanthramide levels in vegetative tissue, and to some extent in grain tissue, can be enhanced by treatment with agrochemicals formulated to elicit systemic acquired resistance (SAR). Specifically these compounds are benzothiadiazoles and isonicotinic acid. Treatment protocols and the dynamics of avenanthramide biosynthesis in various tissues of oat plants will be described in detail.