Fig. 1
From: Identification of novel superoxide dismutase isoenzymes in the olive (Olea europaea L.) pollen
Superoxide dismutase (SOD) activity and viability assays of pollen samples from 16 olive cultivars. a Total SOD activity [units (U)/mg of total protein] in pollen protein extracts. b Pollen viability assays of the same samples. Cultivar names are shown in the lower chart. The asterisks indicate a significant difference from the cv. ‘Picual’ according to Student’s t test at p < 0.01