Diversity of Expression Types of Ht Genes Conferring Resistance in Maize to Exserohilum turcicum.

ABSTRACT: Northern corn leaf blight (NCLB) is an important leaf disease in maize (Zea mays) worldwide and is spreading into new areas with expanding maize cultivation, like Germany. Exserohilum turcicum, causal agent of NCLB, infects and colonizes leaf tissue and induces elongated necrotic lesions. Disease control is based on fungicide application and resistant cultivars displaying monogenic resistance. Symptom expression and resistance mechanisms differ in plants carrying different resistance genes. Therefore, histological studies and DNA quantification were performed to compare the pathogenesis of E. turcicum races in maize lines exhibiting compatible or incompatible interactions. Maize plants from the differential line B37 with and without resistance genes Ht1, Ht2, Ht3

SUBMITTER: Navarro BL 

PROVIDER: S-EPMC7773694 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature