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An explanation of the mystifying bakanae disease narrative for tomorrow's rice
Qaiser Shakeel1,2, Mustansar Mubeen3, Muhammad Aamir Sohail4
1State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
Abstract:
Rice production is severely hampered by the bakanae disease (Fusarium fujikuroi), formerly recognized as Fusarium moniliforme. F. moniliforme was called the F. fujikuroi species complex (FFSC) because it was later discovered that it had some separate species. The FFSC's constituents are also well recognized for producing phytohormones, which include auxins, cytokinin, and gibberellins (GAs). The normal symptoms of bakanae disease in rice are exacerbated by GAs. The members of the FFSC are responsible for the production of fumonisin (FUM), fusarins, fusaric acid, moniliformin, and beauvericin. These are harmful to both human and animal health. This disease is common around the world and causes significant yield losses. Numerous secondary metabolites, including the plant hormone gibberellin, which causes classic bakanae symptoms, are produced by F. fujikuroi. The strategies for managing bakanae, including the utilization of host resistance, chemical compounds, biocontrol agents, natural goods, and physical approaches, have been reviewed in this study. Bakanae disease is still not entirely preventable, despite the adoption of many different tactics that have been used to manage it. The benefits and drawbacks of these diverse approaches are discussed by the authors. The mechanisms of action of the main fungicides as well as the strategies for resistance to them are outlined. The information compiled in this study will contribute to a better understanding of the bakanae disease and the development of a more effective management plan for it.
Insights
Bakanae disease, caused by Fusarium fujikuroi, severely impacts rice production. This review examines various management strategies, highlighting their benefits and drawbacks for effective disease control.
Area of Science:
- Plant Pathology
- Agricultural Science
- Mycology
Background:
- Bakanae disease, caused by Fusarium fujikuroi (formerly F. moniliforme), significantly reduces rice yields globally.
- The Fusarium fujikuroi species complex (FFSC) produces phytohormones like gibberellins (GAs), exacerbating disease symptoms.
- FFSC members also produce mycotoxins harmful to human and animal health.
Purpose of the Study:
- To review and analyze diverse management strategies for bakanae disease in rice.
- To discuss the advantages and disadvantages of current control methods.
- To provide insights for developing more effective bakanae disease management plans.
Main Methods:
- Literature review of existing research on bakanae disease management.
- Analysis of various control strategies including host resistance, chemical, biological, natural, and physical approaches.
- Examination of fungicide mechanisms and resistance strategies.
Main Results:
- Multiple management strategies exist, but none offer complete prevention of bakanae disease.
- Each management approach has distinct benefits and limitations.
- Understanding fungicide action and resistance is crucial for effective chemical control.
Conclusions:
- Integrated management approaches are necessary for effective bakanae disease control.
- Further research is needed to develop novel and more efficient disease management tactics.
- This review provides a comprehensive overview to aid in future disease management planning.
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