Crown Rust Resistance and Avn Production in Barley
February 5, 2010| |
U.S. Department of Agriculture Agricultural Research Service chemists Mitchell Wise and Dough Doehlert have observed the strong correlation between crown rust disease pressure and avenanthramide (Avn) production in oat grain. Avns are metabolites with potent antioxidant properties and have been associated with the oat grains' health benefits. In a two- year experiment where 16 oat cultivars and two breeding lines at three locations in North Dakota were grown, the researchers found that oat plants with the strongest crown rust resistance had the highest Avn concentrations.
Avn production was also found to be highly influenced by environmental factors because not all cultivars with strong crown rust resistance produced high Avn concentration. The results suggest that oat breeders taking into account crown rust pressure during growth can select barley cultivars for enhanced production of Avn.
Other studies by the group are focused on the detailed investigation of how certain Avns are produced.
View http://www.ars.usda.gov/is/pr/2010/100201.htm for more information.
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