Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae
Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) and deoxynivalenol (DON), which differ in toxicity...
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MDPI
2016
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| Online Access: | https://eprints.nottingham.ac.uk/40341/ |
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| author | Drakulic, Jassy Kahar, Mohd Haziq Ajigboye, Olubukola Bruce, Toby Ray, Rumiana V. |
| author_facet | Drakulic, Jassy Kahar, Mohd Haziq Ajigboye, Olubukola Bruce, Toby Ray, Rumiana V. |
| author_sort | Drakulic, Jassy |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) and deoxynivalenol (DON), which differ in toxicity to mammals and plants. However, the effect of each mycotoxin on volatile emissions of plant hosts is not known. Host volatiles are interpreted by insect herbivores such as Sitobion avenae, the English grain aphid, during host selection. Previous work has shown that grain aphids are repelled by wheat infected with DON-producing F. graminearum, and this study seeks to determine the influence of pathogen mycotoxins to host volatile chemistry. Volatile collections from infected hosts and olfactometer bioassays with alate aphids were performed. Infections with isolates that produced DON and NIV were compared, as well as a trichothecene deficient transformant derived from the NIV-producing isolate. This work confirmed the repellent nature of infected hosts with DON accumulation. NIV accumulation produced volatiles that were attractive to aphids. Attraction did not occur when NIV was absent and was, therefore, a direct consequence of NIV production. |
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| format | Article |
| id | nottingham-40341 |
| institution | University of Nottingham Malaysia Campus |
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| last_indexed | 2025-11-14T19:41:33Z |
| publishDate | 2016 |
| publisher | MDPI |
| recordtype | eprints |
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| spelling | nottingham-403412020-05-04T18:19:18Z https://eprints.nottingham.ac.uk/40341/ Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae Drakulic, Jassy Kahar, Mohd Haziq Ajigboye, Olubukola Bruce, Toby Ray, Rumiana V. Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) and deoxynivalenol (DON), which differ in toxicity to mammals and plants. However, the effect of each mycotoxin on volatile emissions of plant hosts is not known. Host volatiles are interpreted by insect herbivores such as Sitobion avenae, the English grain aphid, during host selection. Previous work has shown that grain aphids are repelled by wheat infected with DON-producing F. graminearum, and this study seeks to determine the influence of pathogen mycotoxins to host volatile chemistry. Volatile collections from infected hosts and olfactometer bioassays with alate aphids were performed. Infections with isolates that produced DON and NIV were compared, as well as a trichothecene deficient transformant derived from the NIV-producing isolate. This work confirmed the repellent nature of infected hosts with DON accumulation. NIV accumulation produced volatiles that were attractive to aphids. Attraction did not occur when NIV was absent and was, therefore, a direct consequence of NIV production. MDPI 2016-11-30 Article PeerReviewed Drakulic, Jassy, Kahar, Mohd Haziq, Ajigboye, Olubukola, Bruce, Toby and Ray, Rumiana V. (2016) Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae. Toxins, 8 (12). p. 353. ISSN 2072-6651 Deoxynivalenol; Nivalenol; Trichothecenes; Fusarium head blight; Aphids; Volatiles http://dx.doi.org/10.3390/toxins8120353 doi:10.3390/toxins8120353 doi:10.3390/toxins8120353 |
| spellingShingle | Deoxynivalenol; Nivalenol; Trichothecenes; Fusarium head blight; Aphids; Volatiles Drakulic, Jassy Kahar, Mohd Haziq Ajigboye, Olubukola Bruce, Toby Ray, Rumiana V. Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title | Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title_full | Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title_fullStr | Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title_full_unstemmed | Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title_short | Contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between Fusarium graminearum and Sitobion avenae |
| title_sort | contrasting roles of deoxynivalenol and nivalenol in host-mediated interactions between fusarium graminearum and sitobion avenae |
| topic | Deoxynivalenol; Nivalenol; Trichothecenes; Fusarium head blight; Aphids; Volatiles |
| url | https://eprints.nottingham.ac.uk/40341/ https://eprints.nottingham.ac.uk/40341/ https://eprints.nottingham.ac.uk/40341/ |