Synthèse bibliographique sur : les maladies virales de la vigne

Abstract

This master's thesis explores viral diseases affecting the grapevine (Vitis vinifera L.), a cornerstone of Algeria's economy and culture, focusing on four major pathological complexes: fanleaf degeneration, leafroll, Rugose wood, and fleck. It examines their history, symptoms, causal agents, and transmission mechanisms, highlighting their detrimental impact on vineyard productivity and sustainability. Particular attention is given to the analysis of detection techniques such as PCR, ELISA, and next-generation sequencing (NGS), evaluating their applicability in the Algerian context where diagnostic infrastructure is limited. Furthermore, the bibliographical study provides an overview of the knowledge on grapevine viroses in Algeria, identifying predominant pathogens and regional specificities related to cultural practices and vectors. Through this research, the work aims to propose adapted strategies for the management of viral diseases, thereby contributing to the preservation and promotion of Algeria's viticultural heritage.