The performance of laboratory X‐ray computed tomography (XCT) for the non‐destructive imaging of root wood was evaluated. Lateral roots of oriental cherry (Prunus serrulata var. spontanea) and Japanese zelkova (Zelkova serrata) were severed in spring and maintained in soil for 6 months. Without sectioning, XCT revealed the phloem, xylem and vascular cambium structures in the root wood. A virtual transverse section showed a ring of woundwood covering the severed, lateral root of the two trees. Different levels of X‐ray absorption were evident around the cut surfaces of P. serrulata; however, they were rarely detected in Z. serrata. More adventitious roots were observed on Z. serrata than on P. serrulata. Distinct white spots in the rays were only detected in Z. serrata. These results suggest that XCT has potential applications in forest pathology, providing virtual sections of wound closure, wood density distribution, organ redifferentiation, and mineral deposition in root wood.

中文翻译：

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樱桃李和锯缘青蟹断根的X射线计算机断层扫描

评估了实验室X射线计算机断层扫描（XCT）对原木的非破坏性成像的性能。樱花（侧根山樱变种。spontanea）和日本光叶榉树（榉树）在春天被切断，并在土壤中保持6个月。XCT不需切片即可显示根木中的韧皮部，木质部和维管形成层结构。一个虚拟的横断面显示出一圈of木，覆盖着两棵树的侧根。在P. serrulata的切面周围，X射线的吸收程度不同。然而，它们在锯齿蟹中很少被发现。在锯缘青蟹（Z. serrata）上观察到更多不定根比在P. serrulata上。仅在锯齿鲈中才发现射线中明显的白斑。这些结果表明，XCT在森林病理学中具有潜在的应用前景，可以提供伤口闭合，木材密度分布，器官再分化和根部木材中矿物质沉积的虚拟切片。