Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea

Fusarium asiaticum of the F. graminearum species complex causes head blight in small-grain cereals. The nivalenol (NIV) chemotypes of F. asiaticum is more common than the deoxynivalenol (DON) chemotypes of F. asiaticum or F. graminearum in Korea. To understand the prevalence of F. asiaticum–NIV in K...

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Main Authors: Ja Yeong Jang, Seul Gi Baek, Jung-Hye Choi, Sosoo Kim, Jeomsoon Kim, Da-Woon Kim, Sung-Hwan Yun, Theresa Lee
Format: Article
Language:English
Published: Hanrimwon Publishing Company 2019-12-01
Series:The Plant Pathology Journal
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901258
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spelling doaj-060c9a9ad62642cab172a810c45539982020-11-25T01:52:36ZengHanrimwon Publishing CompanyThe Plant Pathology Journal1598-22542019-12-0135654355210.5423/PPJ.OA.06.2019.016810.5423PPJ.OA.06.2019.0168Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in KoreaJa Yeong Jang0Seul Gi Baek1Jung-Hye Choi2Sosoo Kim3Jeomsoon Kim4Da-Woon Kim5Sung-Hwan Yun6Theresa Lee7Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaMicrobial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaMicrobial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaMicrobial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaMicrobial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaDepartment of Medical Biotechnology, Soonchunhyanag University, Asan 31538, KoreaDepartment of Medical Biotechnology, Soonchunhyanag University, Asan 31538, KoreaMicrobial Safety Team, National Institute of Agricultural Sciences, Wanju 55365, KoreaFusarium asiaticum of the F. graminearum species complex causes head blight in small-grain cereals. The nivalenol (NIV) chemotypes of F. asiaticum is more common than the deoxynivalenol (DON) chemotypes of F. asiaticum or F. graminearum in Korea. To understand the prevalence of F. asiaticum–NIV in Korean cereals, we characterized the biological traits of 80 cereal isolates of F. asiaticum producing NIV or 3-acetyl-deoxynivalenol (3-ADON), and 54 F. graminearum with 3-ADON or 15-acetyl-deoxynivalenol (15-ADON). There was no significant difference in mycelial growth between the chemotypes, but F. asiaticum isolates grew approximately 30% faster than F. graminearum isolates on potato dextrose agar. Sexual and asexual reproduction capacities differed markedly between the two species. Both chemotypes of F. graminearum (3-ADON and 15-ADON) produced significantly higher numbers of perithecia and conidia than F. asiaticum–NIV. The highest level of mycotoxins (sum of trichothecenes and zearalenone) was produced by F. graminearum–3-ADON on rice medium, followed by F. graminearum–15-ADON, F. asiaticum–3-ADON, and F. asiaticum–NIV. Zearalenone levels were correlated with DON levels in some chemotypes, but not with NIV levels. Disease assessment on barley, maize, rice, and wheat revealed that both F. asiaticum and F. graminearum isolates were virulent toward all crops tested. However, there is a tendency that virulence levels of F. asiaticum–NIV isolates on rice were higher than those of F. graminearum isolates. Taken together, the phenotypic traits found among the Korean F. asiaticum–NIV isolates suggest an association with their host adaptation to certain environments in Korea.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901258cerealchemotypehead blightmycotoxinpathogenicity
collection DOAJ
language English
format Article
sources DOAJ
author Ja Yeong Jang
Seul Gi Baek
Jung-Hye Choi
Sosoo Kim
Jeomsoon Kim
Da-Woon Kim
Sung-Hwan Yun
Theresa Lee
spellingShingle Ja Yeong Jang
Seul Gi Baek
Jung-Hye Choi
Sosoo Kim
Jeomsoon Kim
Da-Woon Kim
Sung-Hwan Yun
Theresa Lee
Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
The Plant Pathology Journal
cereal
chemotype
head blight
mycotoxin
pathogenicity
author_facet Ja Yeong Jang
Seul Gi Baek
Jung-Hye Choi
Sosoo Kim
Jeomsoon Kim
Da-Woon Kim
Sung-Hwan Yun
Theresa Lee
author_sort Ja Yeong Jang
title Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
title_short Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
title_full Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
title_fullStr Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
title_full_unstemmed Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea
title_sort characterization of nivalenol-producing fusarium asiaticum that causes cereal head blight in korea
publisher Hanrimwon Publishing Company
series The Plant Pathology Journal
issn 1598-2254
publishDate 2019-12-01
description Fusarium asiaticum of the F. graminearum species complex causes head blight in small-grain cereals. The nivalenol (NIV) chemotypes of F. asiaticum is more common than the deoxynivalenol (DON) chemotypes of F. asiaticum or F. graminearum in Korea. To understand the prevalence of F. asiaticum–NIV in Korean cereals, we characterized the biological traits of 80 cereal isolates of F. asiaticum producing NIV or 3-acetyl-deoxynivalenol (3-ADON), and 54 F. graminearum with 3-ADON or 15-acetyl-deoxynivalenol (15-ADON). There was no significant difference in mycelial growth between the chemotypes, but F. asiaticum isolates grew approximately 30% faster than F. graminearum isolates on potato dextrose agar. Sexual and asexual reproduction capacities differed markedly between the two species. Both chemotypes of F. graminearum (3-ADON and 15-ADON) produced significantly higher numbers of perithecia and conidia than F. asiaticum–NIV. The highest level of mycotoxins (sum of trichothecenes and zearalenone) was produced by F. graminearum–3-ADON on rice medium, followed by F. graminearum–15-ADON, F. asiaticum–3-ADON, and F. asiaticum–NIV. Zearalenone levels were correlated with DON levels in some chemotypes, but not with NIV levels. Disease assessment on barley, maize, rice, and wheat revealed that both F. asiaticum and F. graminearum isolates were virulent toward all crops tested. However, there is a tendency that virulence levels of F. asiaticum–NIV isolates on rice were higher than those of F. graminearum isolates. Taken together, the phenotypic traits found among the Korean F. asiaticum–NIV isolates suggest an association with their host adaptation to certain environments in Korea.
topic cereal
chemotype
head blight
mycotoxin
pathogenicity
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901258
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