<span lang="EN-GB">Interactions of Maize-Pathogenic Fusarium Species with Macrophomina phaseolina Shed Light on Host <span lang="EN-GB">Preference in Crop Rotation

Survey studies during the ۲۰۲۱–۲۰۲۲ maize growing season in Türkiye’s Central and Southeastern Anatolia Regions identified Fusarium species in seven provinces (Eskişehir, Konya, Karaman, Gaziantep, Şanlıurfa, Mardin, and Diyarbakır). Pathogenicity tests revealed ۳۱ pathogenic isolates among ۱۱۵ Fusarium spp., with three isolates causing the highest disease severity at a ۵۰% infection rate. These isolates showed moderate pathogenicity in stems and weak pathogenicity in roots. For species identification, EF-۱alpha and RPB۲ regions of ۲۸ isolates were amplified, and sequences were compared to the NCBI database via BLAST analysis. Results indicated Fusarium proliferatum, F. subglutinans, and F. verticillioides as the dominant species. Cross-pathogenicity tests with F. proliferatum, F. subglutinans, F. verticillioides, and Macrophomina phaseolina, alone and in combinations, were performed on barley, wheat, bean, corn, garlic, sorghum, and oat genotypes. All tested plants showed varying disease severity, with garlic being the most affected. M. phaseolina exhibited the least pathogenicity, while its combination with F. verticillioides caused the greatest damage. These findings are particularly significant considering the pathogens' disease impacts and mycotoxin production capacities.

کلیدواژه ها:

Cross pathogenicity ، Mycotoxin production capacities ، ، ">Zea mays L