Occurrence of fungal species associated with grapevine dieback in western of Algeria (case of the Tlemcen region)
Keywords:
Vitis finifera L. – fungi - plant pathogen - Tlemcen.Abstract
Introduction: The present study carried out in the Tlemcen region (In four different farms) between 2021 and 2022, focuses on the isolation, identification and characterization of phytopathogenic fungi responsible for fungal diseases of the vine (Vitis vinifera L.).
Methods: Out of a total of 60 samples, the isolation of fungi from the aerial part and underground of symptomatic trees revealed the presence of significant fungal biodiversity on the culture medium.
Results: Sixteen fungal species of different genera have been isolated and identified, namely: Aspergilus fumigatus, Aspergilus niger, Alternaria alternata, Penicillium sp., Penicillium communeon, Penicillium solitum, Fusarium sp., Fusarium solani, Fusarium culmorum, Pythium sp., Pythium ramorum, Diplodia corticola, Botrytis cinerea, Mucor racemosus, Rhiropus stolonifer and Monilia fructicola. The two species Diplodia corticola and Botrytis cinerea are strongly present in the vascular tissues of the collar and trunk, with 9 and 12%, respectively.
Conclusion: As well as species of the Fusarium genus with 18% in the rhizosphere of symptomatic trees.
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