Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences
Nitrogen (N) is one of the most important elements that has a central impact on plant growth and yield. N is also widely involved in plant stress responses, but its roles in host-pathogen interactions are complex as each affects the other. In this review, we summarize the relationship between N nutr...
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doaj-18198861b83247eeb718f127c83bc0c82020-11-25T01:47:08ZengMDPI AGInternational Journal of Molecular Sciences1422-00672020-01-0121257210.3390/ijms21020572ijms21020572Unravelling the Roles of Nitrogen Nutrition in Plant Disease DefencesYuming Sun0Min Wang1Luis Alejandro Jose Mur2Qirong Shen3Shiwei Guo4Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving fertilizers, Nanjing Agricultural University, Nanjing 210095, ChinaJiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving fertilizers, Nanjing Agricultural University, Nanjing 210095, ChinaInstitute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3DA, UKJiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving fertilizers, Nanjing Agricultural University, Nanjing 210095, ChinaJiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving fertilizers, Nanjing Agricultural University, Nanjing 210095, ChinaNitrogen (N) is one of the most important elements that has a central impact on plant growth and yield. N is also widely involved in plant stress responses, but its roles in host-pathogen interactions are complex as each affects the other. In this review, we summarize the relationship between N nutrition and plant disease and stress its importance for both host and pathogen. From the perspective of the pathogen, we describe how N can affect the pathogen’s infection strategy, whether necrotrophic or biotrophic. N can influence the deployment of virulence factors such as type III secretion systems in bacterial pathogen or contribute nutrients such as gamma-aminobutyric acid to the invader. Considering the host, the association between N nutrition and plant defence is considered in terms of physical, biochemical and genetic mechanisms. Generally, N has negative effects on physical defences and the production of anti-microbial phytoalexins but positive effects on defence-related enzymes and proteins to affect local defence as well as systemic resistance. N nutrition can also influence defence via amino acid metabolism and hormone production to affect downstream defence-related gene expression via transcriptional regulation and nitric oxide (NO) production, which represents a direct link with N. Although the critical role of N nutrition in plant defences is stressed in this review, further work is urgently needed to provide a comprehensive understanding of how opposing virulence and defence mechanisms are influenced by interacting networks.https://www.mdpi.com/1422-0067/21/2/572nitrogenplant diseasephysicalbiochemicalmoleculardisease defence |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuming Sun Min Wang Luis Alejandro Jose Mur Qirong Shen Shiwei Guo |
spellingShingle |
Yuming Sun Min Wang Luis Alejandro Jose Mur Qirong Shen Shiwei Guo Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences International Journal of Molecular Sciences nitrogen plant disease physical biochemical molecular disease defence |
author_facet |
Yuming Sun Min Wang Luis Alejandro Jose Mur Qirong Shen Shiwei Guo |
author_sort |
Yuming Sun |
title |
Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences |
title_short |
Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences |
title_full |
Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences |
title_fullStr |
Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences |
title_full_unstemmed |
Unravelling the Roles of Nitrogen Nutrition in Plant Disease Defences |
title_sort |
unravelling the roles of nitrogen nutrition in plant disease defences |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2020-01-01 |
description |
Nitrogen (N) is one of the most important elements that has a central impact on plant growth and yield. N is also widely involved in plant stress responses, but its roles in host-pathogen interactions are complex as each affects the other. In this review, we summarize the relationship between N nutrition and plant disease and stress its importance for both host and pathogen. From the perspective of the pathogen, we describe how N can affect the pathogen’s infection strategy, whether necrotrophic or biotrophic. N can influence the deployment of virulence factors such as type III secretion systems in bacterial pathogen or contribute nutrients such as gamma-aminobutyric acid to the invader. Considering the host, the association between N nutrition and plant defence is considered in terms of physical, biochemical and genetic mechanisms. Generally, N has negative effects on physical defences and the production of anti-microbial phytoalexins but positive effects on defence-related enzymes and proteins to affect local defence as well as systemic resistance. N nutrition can also influence defence via amino acid metabolism and hormone production to affect downstream defence-related gene expression via transcriptional regulation and nitric oxide (NO) production, which represents a direct link with N. Although the critical role of N nutrition in plant defences is stressed in this review, further work is urgently needed to provide a comprehensive understanding of how opposing virulence and defence mechanisms are influenced by interacting networks. |
topic |
nitrogen plant disease physical biochemical molecular disease defence |
url |
https://www.mdpi.com/1422-0067/21/2/572 |
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