Comparative Pathogenicity of Fusarium graminearum Isolates from Wheat Kernels in Korea
Fusarium head blight (FHB) caused by species is a major disease of wheat and barley around the world. FHB causes yield reductions and contamination of grains with trichothecene mycotoxins including; nivalenol (NIV), deoxynivalenol (DON), 3-acetyldeoxynivalenol (3-ADON), and 15-acetylde-oxynivalenol...
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Published in | The plant pathology journal Vol. 34; no. 5; pp. 347 - 356 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Korea (South)
한국식물병리학회
01.10.2018
Korean Society of Plant Pathology Hanrimwon Publishing Company |
Subjects | |
Online Access | Get full text |
ISSN | 1598-2254 2093-9280 |
DOI | 10.5423/ppj.oa.01.2018.0013 |
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Summary: | Fusarium head blight (FHB) caused by
species is a major disease of wheat and barley around the world. FHB causes yield reductions and contamination of grains with trichothecene mycotoxins including; nivalenol (NIV), deoxynivalenol (DON), 3-acetyldeoxynivalenol (3-ADON), and 15-acetylde-oxynivalenol (15-ADON). The objectives of this study were to identify strains of
isolated in Korea from 2012-harvested wheat grain and to test the pathogenicity of these NIV- and DON-producing isolates. Three hundred and four samples of wheat grain, harvested in 2012 in Chungnam, Chungbuk, Gyeongnam, Jeonbuk, Jeonnam, and Gangwon provinces were collected. We recovered 44 isolates from the 304 samples, based on the PCR amplification of internal transcribed spacer (ITS) rRNA region and sequencing. Our findings indicate that
was the predominant (95% of all isolates) species in Korea. We recovered both
and
from samples collected in Chungnam province. Of the 44 isolates recovered, 36 isolates had a NIV genotype while 8 isolates belonged to the DON genotype (3-ADON and 15-ADON). In order to characterize the pathogenicity of the strains collected, disease severity was assessed visually on various greenhouse-grown wheat cultivars inoculated using both NIV- and DON-producing isolates. Our results suggest that Korean
isolates from wheat belong to
producing NIV, and both
and
are not significantly different on virulence in wheat cultivars. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Handling Associate Editor: Seo, Young-Su Present address: Animal and Plant Quarantine Agency, 167 Yongjeon-ro, Gimcheon 39660, Korea |
ISSN: | 1598-2254 2093-9280 |
DOI: | 10.5423/ppj.oa.01.2018.0013 |