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Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice

In recent years, Fusarium head blight (FHB) outbreaks have occurred much more frequently in China. The reduction of burning of the preceding crop residues is suggested to contribute to more severe epidemics as it may increase the initial inoculum. In this study, a large number of Fusarium isolates w...

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Autores principales: Yang, Meixin, Zhang, Hao, Kong, Xiangjiu, van der Lee, Theo, Waalwijk, Cees, van Diepeningen, Anne, Xu, Jin, Xu, Jingsheng, Chen, Wanquan, Feng, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5869403/
https://www.ncbi.nlm.nih.gov/pubmed/29518004
http://dx.doi.org/10.3390/toxins10030115
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author Yang, Meixin
Zhang, Hao
Kong, Xiangjiu
van der Lee, Theo
Waalwijk, Cees
van Diepeningen, Anne
Xu, Jin
Xu, Jingsheng
Chen, Wanquan
Feng, Jie
author_facet Yang, Meixin
Zhang, Hao
Kong, Xiangjiu
van der Lee, Theo
Waalwijk, Cees
van Diepeningen, Anne
Xu, Jin
Xu, Jingsheng
Chen, Wanquan
Feng, Jie
author_sort Yang, Meixin
collection PubMed
description In recent years, Fusarium head blight (FHB) outbreaks have occurred much more frequently in China. The reduction of burning of the preceding crop residues is suggested to contribute to more severe epidemics as it may increase the initial inoculum. In this study, a large number of Fusarium isolates was collected from blighted wheat spikes as well as from rice stubble with perithecia originating from nine sampling sites in five provinces in Southern China. Fusarium asiaticum dominated both wheat and rice populations, although rice populations showed a higher species diversity. Chemotype analysis showed that rice is the preferred niche for NIV mycotoxin producers that were shown to be less virulent on wheat. In contrast, 3ADON producers are more prevalent on wheat and in wheat producing areas. The 3ADON producers were shown to be more virulent on wheat, revealing the selection pressure of wheat on 3ADON producers. For the first time, members of the Incarnatum-clade of Fusarium Incarnatum-Equiseti Species Complex (FIESC) were found to reproduce sexually on rice stubble. The pathogenicity of FIESC isolates on wheat proved very low and this may cause the apparent absence of this species in the main wheat producing provinces. This is the first report of the Fusarium population structure including rice stubble as well as a direct comparison with the population on wheat heads in the same fields. Our results confirm that the perithecia on rice stubble are the primary inoculum of FHB on wheat and that cropping systems affect the local Fusarium population.
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spelling pubmed-58694032018-03-28 Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice Yang, Meixin Zhang, Hao Kong, Xiangjiu van der Lee, Theo Waalwijk, Cees van Diepeningen, Anne Xu, Jin Xu, Jingsheng Chen, Wanquan Feng, Jie Toxins (Basel) Article In recent years, Fusarium head blight (FHB) outbreaks have occurred much more frequently in China. The reduction of burning of the preceding crop residues is suggested to contribute to more severe epidemics as it may increase the initial inoculum. In this study, a large number of Fusarium isolates was collected from blighted wheat spikes as well as from rice stubble with perithecia originating from nine sampling sites in five provinces in Southern China. Fusarium asiaticum dominated both wheat and rice populations, although rice populations showed a higher species diversity. Chemotype analysis showed that rice is the preferred niche for NIV mycotoxin producers that were shown to be less virulent on wheat. In contrast, 3ADON producers are more prevalent on wheat and in wheat producing areas. The 3ADON producers were shown to be more virulent on wheat, revealing the selection pressure of wheat on 3ADON producers. For the first time, members of the Incarnatum-clade of Fusarium Incarnatum-Equiseti Species Complex (FIESC) were found to reproduce sexually on rice stubble. The pathogenicity of FIESC isolates on wheat proved very low and this may cause the apparent absence of this species in the main wheat producing provinces. This is the first report of the Fusarium population structure including rice stubble as well as a direct comparison with the population on wheat heads in the same fields. Our results confirm that the perithecia on rice stubble are the primary inoculum of FHB on wheat and that cropping systems affect the local Fusarium population. MDPI 2018-03-08 /pmc/articles/PMC5869403/ /pubmed/29518004 http://dx.doi.org/10.3390/toxins10030115 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Meixin
Zhang, Hao
Kong, Xiangjiu
van der Lee, Theo
Waalwijk, Cees
van Diepeningen, Anne
Xu, Jin
Xu, Jingsheng
Chen, Wanquan
Feng, Jie
Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title_full Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title_fullStr Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title_full_unstemmed Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title_short Host and Cropping System Shape the Fusarium Population: 3ADON-Producers Are Ubiquitous in Wheat Whereas NIV-Producers Are More Prevalent in Rice
title_sort host and cropping system shape the fusarium population: 3adon-producers are ubiquitous in wheat whereas niv-producers are more prevalent in rice
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5869403/
https://www.ncbi.nlm.nih.gov/pubmed/29518004
http://dx.doi.org/10.3390/toxins10030115
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