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Fig. 1 | BMC Plant Biology

Fig. 1

From: Interaction of plant growth regulators and reactive oxygen species to regulate petal senescence in wallflowers (Erysimum linifolium)

Fig. 1

a Stages in wallflower senescence: Stage 1 – fully open pale flowers; 4/6 anthers protruding; Stage 2 – larger darker petals, all 6 anthers more visible; Stage 3 – petals held more loosely, beginning to wilt, darker; Stage 4 – petals limp and curled over, darker colour, wilting clearly evident; Stage 5 – clear petal deterioration; Stage 6 - petals beginning to abscise; remaining petals withered (b) Ethylene production by isolated petals (c) CO2 production from isolated wallflowers detected by gas chromatography. Mean (±SE, n = 3); stages as in (a)

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