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Interactions of Fusarium Crown Rot of Wheat with Nitrogen
The cereal disease Fusarium crown rot (FCR), caused by the fungal pathogen Fusarium pseudograminearum (Fp), is a major constraint to cereal production worldwide. Nitrogen (N) fertilizer is estimated to be approximately 30% of the input costs for grain growers in Australia and is the primary driver o...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920033/ https://www.ncbi.nlm.nih.gov/pubmed/36728800 http://dx.doi.org/10.3390/plants12030533 |
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author | Buster, Mitchell Simpfendorfer, Steven Guppy, Christopher Sissons, Mike Flavel, Richard J. |
author_facet | Buster, Mitchell Simpfendorfer, Steven Guppy, Christopher Sissons, Mike Flavel, Richard J. |
author_sort | Buster, Mitchell |
collection | PubMed |
description | The cereal disease Fusarium crown rot (FCR), caused by the fungal pathogen Fusarium pseudograminearum (Fp), is a major constraint to cereal production worldwide. Nitrogen (N) fertilizer is estimated to be approximately 30% of the input costs for grain growers in Australia and is the primary driver of yield and grain protein levels. When targeting high yield and protein, generous nitrogen fertilizer applications are thought to result in large biomass production, which exacerbates FCR severity, reducing grain yield and quality. This research was undertaken to investigate the effect of temporal N availability in high-protein bread and durum wheat varieties on FCR severity. Laboratory and controlled environment experiments assessed the relationship between FCR and N at a mechanistic and plant level. An in vitro study demonstrated an increase in Fp mycelial growth under increased N availability, especially when N was supplied as urea compared with ammonium nitrate. Similarly, under controlled environmental conditions, increased soil N availability promoted FCR severity within infected plants. Stem N transfer efficiency was significantly decreased under FCR infection in both bread and durum wheat varieties by 4.5% and 10.2%, respectively. This new research demonstrates that FCR not only decreases yield and grain quality but appears to have previously unrecognised detrimental impacts on nitrogen-use efficiency in wheat. This indicates that the current impact of losses from FCR may also decrease N-use inefficiencies, as well as yield and quality penalties. An improved understanding of the interactions and restrictions of FCR infection may allow growers to better manage the disease through manipulation of the soil’s temporal N availability. |
format | Online Article Text |
id | pubmed-9920033 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-99200332023-02-12 Interactions of Fusarium Crown Rot of Wheat with Nitrogen Buster, Mitchell Simpfendorfer, Steven Guppy, Christopher Sissons, Mike Flavel, Richard J. Plants (Basel) Article The cereal disease Fusarium crown rot (FCR), caused by the fungal pathogen Fusarium pseudograminearum (Fp), is a major constraint to cereal production worldwide. Nitrogen (N) fertilizer is estimated to be approximately 30% of the input costs for grain growers in Australia and is the primary driver of yield and grain protein levels. When targeting high yield and protein, generous nitrogen fertilizer applications are thought to result in large biomass production, which exacerbates FCR severity, reducing grain yield and quality. This research was undertaken to investigate the effect of temporal N availability in high-protein bread and durum wheat varieties on FCR severity. Laboratory and controlled environment experiments assessed the relationship between FCR and N at a mechanistic and plant level. An in vitro study demonstrated an increase in Fp mycelial growth under increased N availability, especially when N was supplied as urea compared with ammonium nitrate. Similarly, under controlled environmental conditions, increased soil N availability promoted FCR severity within infected plants. Stem N transfer efficiency was significantly decreased under FCR infection in both bread and durum wheat varieties by 4.5% and 10.2%, respectively. This new research demonstrates that FCR not only decreases yield and grain quality but appears to have previously unrecognised detrimental impacts on nitrogen-use efficiency in wheat. This indicates that the current impact of losses from FCR may also decrease N-use inefficiencies, as well as yield and quality penalties. An improved understanding of the interactions and restrictions of FCR infection may allow growers to better manage the disease through manipulation of the soil’s temporal N availability. MDPI 2023-01-24 /pmc/articles/PMC9920033/ /pubmed/36728800 http://dx.doi.org/10.3390/plants12030533 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Buster, Mitchell Simpfendorfer, Steven Guppy, Christopher Sissons, Mike Flavel, Richard J. Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title | Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title_full | Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title_fullStr | Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title_full_unstemmed | Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title_short | Interactions of Fusarium Crown Rot of Wheat with Nitrogen |
title_sort | interactions of fusarium crown rot of wheat with nitrogen |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920033/ https://www.ncbi.nlm.nih.gov/pubmed/36728800 http://dx.doi.org/10.3390/plants12030533 |
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