Date of Award
2012
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Cereal Science
Department
Plant Sciences
College
Agriculture, Food Systems and Natural Resources
Faculty Advisor
Simsek, Senay
Description
Research investigates the chemical basis for Fusarium head blight (FHB) resistance and initiating development of a screening test for resistant wheat genotypes. The focus is on minimizing cost of screening and gaining chemical approach against FHB. Wheat bran/agar plates (8% bran, w/v) prepared from hard red spring wheat with different susceptibility to FHB were inoculated with F. graminearum. Fusarium plaque diameters and ergosterol levels after 4 days of growth were significantly lower (p< 0.05) on plates prepared from genotypes with low FHB susceptibility than from high FHB susceptible genotypes. F. graminearum growth was lower, when methanol-soluble compounds (MSC) extracted from a low FHB susceptibility genotype, Glenn, were added to high susceptibility genotype, Samson. Wheat bran/agar plates enriched with linoleic acid significantly (p<0.05) reduced the growth rate of F. graminearum in both Glenn and Samson genotypes. Oxygenated fatty acids, including monohydroxy- and dihydroxy- fatty acids were identified in the MSC.
Recommended Citation
Abeyratne, Meliza Stephnie, "Growth of Fusarium Graminearum on Wheat Bran/Agar Cultures in Relation to Fusarium Head Blight Susceptibility" (2012). Cereal Science. 15.
https://digitalcommons.ndsu.edu/cereal-sci/15
Rights
NDSU policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Handle Identifier
https://hdl.handle.net/10365/26499