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Ferulic Acid Content of Barley and Wheat Grains and Head Blight Resistance
Res. Plant Dis. 2020;26:250-255
Published online December 31, 2020
© 2020 The Korean Society of Plant Pathology.

Seul Gi Baek, Sosoo Kim, Ja Yeong Jang, Jeomsoon Kim, and Theresa Lee*

Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, Korea
Tel: +82-63-238-3401
Fax: +82-63-238-3840
E-mail: tessyl1@korea.kr
Received September 29, 2020; Revised November 11, 2020; Accepted November 11, 2020.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In order to find if a ferulic acid (FA) can be used as a selection index in cereal breeding for resistance to head blight and mycotoxin production, we analyzed FA in the grains of 80 cultivars of barley, rice, and wheat. FA content ranged 1.66-2.77 mg/g in barley (n=20), 0.56-1.53 mg/g in wheat (n=40), and 0.91-2.13 mg/g in rice (n=20). Among these, 7 cultivars each of barley and wheat with different FA content were tested for head blight and mycotoxin production by 2 Fusarium graminearum and 2 F. asiaticum strains. Mean pathogenicity of the wheat cultivars was significantly less than that of barley with higher FA and among wheat cultivars, there was no correlation between FA content and pathogenicity. Mycotoxin production was also lower in the wheat than in the barley as pathogenicity. However, pathogenicity and toxins produced by F. asiaticum were negatively correlated with FA content in barley. These results indicate that FA is not a resistance factor to head blight by F. asiaticum and F. graminearum or its mycotoxin production in barley and wheat.
Keywords : Barley, Ferulic acid, Head blight, Resistance, Wheat


December 2020, 26 (4)