Research Article

Comparative Analyses of Physiological Responses of Cynodon dactylon Accessions from Southwest China to Sulfur Dioxide Toxicity

Figure 6

Comparison of antioxidant enzyme activities in leaves from C. dactylon accessions in response to SO2 stress. Antioxidant enzyme activities of SOD (a), POD (b), and CAT (c) in leaves from nine selected C. dactylon accessions in response to SO2 stress were compared. Mean values are presented with vertical error bars representing the standard deviations ( ). The asterisk symbols indicate significant differences between SO2-sensitive accessions and SO2-tolerant accessions.
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(b)
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(c)