Fig. 1. Glucose oxidase (GOX) activity in Spodoptera exigua whole bodies (1A) and labial salivary glands (1B and 1C). 1A.
GOX activity in whole bodies of S. exigua caterpillars reared on Medicago trunctula or artificial diet over larval development (2nd to 5nd instars). GOX activity measured spectrophotometrically by the o-dianisidine-peroxidase assay (U/caterpillar, 35°C) (Bergmeyer, 1974). Bars represent the mean of 6-10 replicates ± SE. Significantly different means are indicated by alphabetical letters (p ≤ 0.01). Fig 1B and C. GOX activity in labial salivary gland of S. exigua caterpillars fed either plants or artificial diet. Bars represent the mean of between 6-10 replicates ± SE. Fig 1B: Total GOX activity per pair labial salivary gland. Fig 1C: GOX activity per mg soluble protein per pair labial salivary gland.