Effect of chitosan on Fusarium spp. isolated from the soil of the Nile Delta region in Egypt | ||||
| Delta Journal of Science | ||||
| Article 8, Volume 42, Issue 1, December 2020, Page 82-89 PDF (2.59 MB) | ||||
| Document Type: Research and Reference | ||||
| DOI: 10.21608/djs.2020.142847 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Alaa M. Abou-zeid; Saida M. Amer; Mohammed yaseir El-bedawy; Mohammed Elhaitty; Ghada M. El-hussieny Ali | ||||
| Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta, Egypt. | ||||
| Abstract | ||||
| Continuous and over use of fungicides to reduce phytopathogens has harmful effect on health and induces natural resistance in plant pathogens. Present study aimed to use natural compound such as chitosan to inhibit growth of Fusarium spp. isolated from soil of Egyptian governments (Kafr El-sheikh, El-Gharbia, and El-Monofia), Fusarium isolates identified based on morphological characteristics as Fusarium oxysporum, F. solani, F. verticolliodes, and F. chlamydosporum. Potato dextrose agar medium (PDA) containing 1.6 g/L of chitosan acetic acid distilled water solution recorded remarkable mycelial growth inhibition (77, 76.7 , 71.4 and 67%) for Fusarium verticilloides, F. oxysporum, F. chlamydosprum and F. solani respectively. Ultrastructural changes in conidia of F. chlamydosprum treated with 1.2g/L chitosan acetic acid distilled water solution were also investigated by means of transmission electron microscopy (TEM) which indicated alterations of cytoplasm and cell wall thickness, compared with control. | ||||
| Keywords | ||||
| Fusarium isolates; chitosan; antifungal activity and ultrastructure changes | ||||
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