<i>Pyricularia pennisetigena and Pyricularia oryzae</i> isolates from Paraguay's wheat-growing regions and the impact on wheat.

ABSTRACT: The Pyricularia genus includes species causing blast disease in monocots, posing significant challenges for disease management due to their ability to infect multiple hosts. This study aimed to identify the pathogenicity and species identity of Pyricularia isolates from 11 plant species in wheat-growing regions of Paraguay and assess their capacity to infect wheat. Twenty-four monosporic isolates were analyzed based on macroscopic and microscopic and phylogenetic characteristics. Three phylogenetic clades corresponding to P. oryzae, P. grisea, and P. pennisetigena were identified through five barcoding genes. For the first time, wheat blast was reported in San Pedro Department, and blast disease was observed in weeds in Cordillera and Central Departments. In gre

SUBMITTER: Cazal-Martinez CC 

PROVIDER: S-EPMC11919303 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature