Journal of Plant Pathology & Microbiology

Riad SR El- Mohamedy

Publications

• Research Article
  Variation in Chitosan and Salicylic Acid Efficacy Towards Soil-borne and Air-borne Fungi and Their Suppressive Effect of Tomato Wilt Severity
  Author(s): Hayfa Jabnoun- Khiareddine, Riad SR El- Mohamedy, Farid Abdel- Kareem, Rania Aydi Ben Abdallah, Mouna Gueddes- Chahed and Mejda Daami- Remadi Hayfa Jabnoun- Khiareddine, Riad SR El- Mohamedy, Farid Abdel- Kareem, Rania Aydi Ben Abdallah, Mouna Gueddes- Chahed and Mejda Daami- Remadi
  
  Two resistance inducers (RIs), chitosan and salicylic acid (SA), were assessed in vitro for their antifungal activity against ten tomato phytopathogenic fungi i.e. Fusarium oxysporum f. sp. lycopersici, F. oxysporum f. sp. radicis-lycopersici, F. solani, Verticillium dahliae, Rhizoctonia solani, Colletotrichum coccodes, Pythium aphanidermatum, Sclerotinia sclerotiorum, Botrytis cinerea, and Alternaria solani. The impact of these RIs, applied as soil drench, on Verticillium wilt, Fusarium wilt, and Fusarium Crown and Root Rot severity and on growth parameters of tomato cv. Rio Grande plants were also investigated. Chitosan (0.5-4 mg/ml) and SA (1-25 mM) inhibited mycelial growth of all pathogens in Potato Dextrose Agar (PDA) medium in a concentration-dependent manner, with the greatest inhibition achieved using the highest chitosan and SA concentration.. View More»
  DOI: 10.4172/2157-7471.1000325

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