tailieunhanh - Effect of methyl jasmonate on disease severity and expression of plant defensin gene during Alternaria brassicae infection in Arabidopsis

A study on effect of jasmonate on disease progression as well as induction of defensin gene () was carry out to explore the effectiveness of Jasmonic acid in triggering defence within the host tissues. The disease severity and expression of gene was examined after treatment containing Jasmonic acid and pathogen to two ecotypes of Arabidopsis at different time intervals. Methyl jasmonate treatment was found to be effective in decreasing the disease incidence by lowering the disease index in both susceptible (WS) and tolerant ecotype (Col). Transcripts of accumulated at a greater level upon challenge inoculation with A. brassicae along with Jasmonic acid compared to treatment containing pathogen alone as well as Jasmonic acid alone. These results suggest the involvement of JA signaling pathways conferring resistance to A. brassicae. |

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