Akademik Veri Yönetim Sistemi
Physiological and Molecular Plant Pathology, cilt.138, 2025 (SCI-Expanded)
A comprehensive survey was conducted between 2020 and 2021 to identify fungal pathogens contributing to almond decline in the Southeastern Anatolia Region of Türkiye. Symptomatic samples were collected from 161 orchards across three provinces, targeting trunks and branches displaying gummosis, stem cankers, branch dieback, wilting, vascular discoloration, and necrosis. In total, 324 samples exhibiting canker symptoms were processed, yielding 196 fungal isolates belonging to 14 species. Morphological characterization and DNA sequence analyses identified Botryosphaeria dothidea, Neoscytalidium dimidiatum, Macrophomina phaseolina, Clonostachys rosea, Fusarium brachygibbosum, F. oxysporum, F. proliferatum, F. redolens, F. solani, F. acuminatum, F. verticillioides, Aspergillus flavus, Paecilomyces maximus, and Verticillium dahliae. F. proliferatum was the dominant species (33.2 % prevalence), followed by V. dahliae, N. dimidiatum, and F. verticillioides. Pathogenicity assays revealed that all fungal species were capable of inducing necrotic lesions at inoculation points on branch segments and seedlings. This study documented the first occurrence of F. verticillioides, P. maximus, C. rosea, and A. flavus on almond, as well as the first reports of F. oxysporum, F. proliferatum, F. redolens, F. acuminatum, F. brachygibbosum, and V. dahliae in association with almond trees in Türkiye.