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Defense-related enzymes activity (A) and relative expression levels of defense signaling marker genes (B) in the leaves of tobacco plants. Values were analyzed and expressed as mean±standard error (n=6) based on duplicate experiments. The different letters above the bars indicated there were significantly different (p<0.05). HCH2-3, P. koreensis; FGD5-2, P. lurida; and MTD4-1, P. rhodesiae.
