Figure 1From: Holdfast spreading and thickening during Caulobacter crescentus attachment to surfacesHoldfast secretion level at different ages, detected by labeling with 100 μg/ml fluorescein-WGA-lectin for 15 min on ice, (a) 7.5 ± 2.5 min, (b) 17.5 ± 2.5 min, (c) 27.5 ± 2.5 min, and (d) 37.5 ± 2.5 min. Top panel shows phase contrast images, middle panel fluorescence images, and bottom panel the combined phase and fluorescence images.Back to article page