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Does the application of chitosan affect the growth and development of fungal pathogens in corn? 

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Mycelium
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The application of chitosan has been shown to significantly impact the growth and development of fungal pathogens in corn. Chitosan, a biopolymer derived from chitin, plays a crucial role in altering the cell wall structure of fungi like Ustilago maydis, affecting their virulence and morphology . Studies have demonstrated that chitosan and nano-chitosan treatments exhibit strong fungicidal activity against aggressive isolates of Harpophora maydis, reducing disease severity and enhancing plant resistance to fungal infections . Additionally, chitosan nanomaterials have been explored for disease control in corn, showcasing their potential in mitigating post-flowering stalk rot disease and enhancing plant growth . The antifungal properties of chitosan make it a promising natural alternative to traditional fungicides, with the ability to inhibit fungal growth and induce plant resistance while being environmentally friendly .

Answers from top 4 papers

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Papers (4)Insight
Open access•Journal Article•DOI
Chitosan and Chitin Deacetylase Activity Are Necessary for Development and Virulence of Ustilago maydis.
Yanina S. Rizzi, Petra Happel, Sandra Lenz, Mounashree J. Urs, Martin Bonin, Stefan Cord-Landwehr, Ratna Singh, Bruno M. Moerschbacher, Regine Kahmann 
02 Mar 2021-Mbio
21 Citations
Chitosan and chitin deacetylase activity are crucial for the development and virulence of the fungal pathogen Ustilago maydis in corn, impacting growth and pathogenicity.
Book Chapter•DOI
Chitosan Nanomaterials for Post Flowering Stalk Rot Control in Maize
27 Sep 2022
Chitosan application inhibits fungal pathogens in corn, reducing post-flowering stalk rot. Chitosan's bioactive properties make it effective for disease control without hindering corn growth and development.
Open access•Journal Article•DOI
Chitosan and Nano-Chitosan for Management of Harpophora maydis: Approaches for Investigating Antifungal Activity, Pathogenicity, Maize-Resistant Lines, and Molecular Diagnosis of Plant Infection
Eman O. Hassan, Tahsin Shoala, Amany Mohamed Farouk Attia, Omnia A. M. Badr, Sabry Younis Mahmoud, Eman S. Farrag, I. A. I. El-Fiki 
01 May 2022-Journal of Fungi
5 Citations
Chitosan application, especially nano-chitosan, inhibits the growth of Harpophora maydis in corn, reducing disease severity and enhancing plant growth parameters, indicating a positive impact on fungal pathogens.
Open access•Journal Article•DOI
Chitosan Is Necessary for the Structure of the Cell Wall, and Full Virulence of Ustilago maydis
J. Alejandro Sánchez-Arreguín, M. L. Ortiz-Castellanos, Angélica M. Robledo-Briones, Claudia G. León-Ramírez, Domingo Martínez-Soto, José Ruiz-Herrera 
01 Aug 2022-Journal of Fungi
1 Citations
Chitosan is crucial for cell wall structure and virulence in Ustilago maydis, impacting fungal growth and development in corn by maintaining wall integrity and evading host recognition.

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