Odvody G
Tanzania
Research Article
Responses of Johnsongrass Against Sorghum Anthracnose Isolates
Author(s): Ezekiel Ahn, Louis Prom, Gary Odvody, and Clint MagillEzekiel Ahn, Louis Prom, Gary Odvody, and Clint Magill
Johnsongrass is a creeping perennial weed that interferes with crop productivity. Due to genetic similarity to sorghum, Johnsongrass is considered to have potential as an alternate source of pathogen resistance genes for sorghum. In order to test this hypothesis, sorghum isolates of anthracnose (Colletotrichum sublineolum) were inoculated onto twenty-six Johnsongrass cultivars collected from across the southern US by using an excised leaf method. Upon inoculation with a C. sublineolum sorghum isolate, different Johnsongrass cultivars showed different degrees of infection. Moreover, three different C. sublineolum isolates caused different responses on the same Johnsongrass cultivar. Expression of early defense response related genes, including β-1,3-glucanase, chalcone synthase 8 (CHS8), pathogen induced chitinase, flavonoid-3’-hydroxylase, pathogenesis related protein-10 (P.. View More»
DOI:
10.4172/2157-7471.1000442