Synchrotron micro-CT time series of dehydrating grapevine petioles with a legacy semantic segmentation corpus

Synchrotron X-ray micro-computed tomography enables the non-destructive, high-resolution imaging of plant microstructures. This dataset provides raw projection data and reconstructed tomographic slices of grapevine petioles undergoing controlled dehydration, imaged at ALS Beamline 8.3.2. It also includes 42 high-resolution manually annotated semantic segmentation masks for cellular analysis. The data supports automated plant tissue characterization and research into plant hydraulic resilience.同步辐射X射线显微计算机断层扫描（Synchrotron X-ray micro-computed tomography）可实现植物微观结构的无损、高分辨成像。本数据集包含经可控脱水处理的葡萄叶柄的原始投影数据与重建断层切片，该样本的成像实验于ALS（Advanced Light Source，先进光源）8.3.2号光束线完成。此外，数据集还包含42幅用于细胞分析的高分辨率人工标注语义分割掩码（semantic segmentation masks）。本数据集可为植物组织自动化表征及植物水力抗逆性相关研究提供数据支撑。