Physiological and molecular responses of a resistant and susceptible wheat cultivar to the fungal wheat pathogen Zymoseptoria tritici

• DOI: 10.1371/journal.pone.0308116
• Publication Date: 2024-10-04T17:21:15Z
• Authors: Amir Mirzadi Gohari; Fateme Ghiasi Noei; Amin Ebrahimi; Mohammad Amin Gha...; Fardad Didaran; Mohsen Farzaneh; Rahim Mehrabi
• Keywords: Mycosphaerella graminicola; Common wheat

Zymoseptoria tritici is the causal agent of Septoria blotch (STB), one most economically destructive wheat foliar diseases. In this study, we explore physiological and molecular changes elicited in two cultivars with divergent responses (Taichung 29 = susceptible, Shafir resistant) upon infection by Z . Our aim to uncover novel insights into intricate mechanisms that govern defense against infection. quantitative histopathological study showed H 2 O accumulated resistant cultivar a higher degree compared susceptible at biotrophic switching phase. Additionally, combined qPCR targeted HPLC technique evaluate expression profiles 13 defense-related genes profile polyphenolic compounds induced differentially STB cultivar. finding indicated five out were strongly up-regulated eight days post-inoculation (dpi), corresponding transition phase present process Finally, our analysis demonstrated traced phenolic highly elevated infected conclusion, comprehensive unveils robust response Shafir, characterized heightened accumulation, significant up-regulation key during phase, distinct compounds, shedding light on contributing its resistance , thereby providing valuable for development more resilient varieties.