Change of defensive-related enzyme in wheat crown rot seedlings infected by <i>Fusarium graminearum</i>
2013
Zhang, P. | Zhou, M. P. | Zhang, X. | Huo, Y. | Ma, H. X.
Crown rot caused by <i>Fusarium</i> pathogens is one of the most economically destructive diseases of wheat. The objective of this study was to investigate defense-related enzyme responses in wheat seedlings infected with <i>Fusarium graminearum</i>. Three wheat varieties were employed to the experiment. Physiological analysis of varieties indicated that defensive-related enzymes were induced by <i>F. graminearum</i> infection. The superoxide dismutase and peroxidase activities increased dramatically and the phenylalanine ammonia-lyase activity was stimulated to a higher level in resistant variety Hongyouzi than in susceptible variety Wo0102. However, the chitinase activity was higher in susceptible variety Wo0102 than in Hongyouzi after infection. These results suggest that the defense enzymes could be stimulated in wheat seedlings by <i>Fusarium</i> infection.
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