This data set contains confocal stacks from Arabidopsis thaliana 35S::GFP-MBD light grown hypocotyl as well as propidium iodide stained cotyledon pavement cells and shoot apical meristem. This is the test dataset for the Fiji macro SurfCut (https://github.com/sverger/SurfCut; 10.5281/zenodo.2635737) Material and methods: Plant material and growth conditions Arabidopsis thaliana wild type Col-0 and the microtubule reporter line GFP-MBD (WS-4, (Marc et al. 1998) were used. Seeds were cold treated for 48 hr to synchronize germination. Plants were then grown in a phytotron at 20°C, in a 16 hr light/8 hr dark cycle on solid Murashige and Skoog medium (MS medium, Duchefa, Haarlem, the Netherlands) with 0.8% agar, 1% sucrose, and no vitamin. Confocal microscopy Cell contour staining in the case of PC_PI_Col0_(1-8).tif and SAM_PI_Col-0.tif was performed by staining the cell wall with Propidium Iodide (PI). Plants were immersed in 0.2 mg/ml propidium iodide (PI, Sigma-Aldrich) for 10 min and washed with water prior to imaging. For imaging, samples were either placed on a solid agar medium and immersed in water, or placed between glass slide and coverslip separated by 400 μm spacers to prevent tissue crushing. Images were acquired using a Leica TCS SP8 confocal microscope, equipped with a water immersion objective (HCX IRAPO L 25x/0.95 W). PI excitation was performed using a 552 nm solid-state laser and fluorescence was detected at 600–650 nm. GFP excitation was performed using a 488 nm solid-state laser and fluorescence was detected at 495–535 nm. Stacks of 1024x1024 pixels (pixel size of 0.363 x 0.363 micron) optical section were generated with a Z interval of 0.5 μm. File list: Light grown hypocotyl, GFP-MBD reporter line: - Hypocotyl_GFP-MBD.tif Cotyledon’s pavement cells, PI staining: - PC_PI_Col0_1.tif - PC_PI_Col0_2.tif - PC_PI_Col0_3.tif - PC_PI_Col0_4.tif - PC_PI_Col0_5.tif - PC_PI_Col0_6.tif - PC_PI_Col0_7.tif - PC_PI_Col0_8.tif Shoot apical meristem, PI staining: - SAM_PI_Col-0.tif Reference: Marc, Jan, Cheryl L. Granger, Jennifer Brincat, Deborah D. Fisher, Teh-hui Kao, Andrew G. McCubbin, and Richard J. Cyr. 1998. “A GFP–MAP4 Reporter Gene for Visualizing Cortical Microtubule Rearrangements in Living Epidermal Cells.” The Plant Cell 10 (11): 1927–39. https://doi.org/10.1105/tpc.10.11.1927.