Fusarium graminearum-induced shoot elongation and root reduction in maize seedlings correlate with later seedling blight severity.

ABSTRACT: Fusarium graminearum seedling blight is a common disease of maize (Zea mays). Development of genetic resistance to seedling blight in maize germplasm requires efficient and accurate quantitative assessment of disease severity. Through artificial inoculation experiments under controlled growth conditions, we determined that host genotype, pathogen genotype, and infection dose influence the extent to which F. graminearum induces shoot elongation and inhibits root growth in maize seedlings. A comparison of 15 maize inbred lines showed independent variation of these two fungus-induced effects on seedling growth. In a broader survey with nine commercial maize hybrids and three field-collected fungal isolates, there was significant correlation between these seedling growth responses, as well as

SUBMITTER: Zhou S 

PROVIDER: S-EPMC6508817 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature