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X‐ray computed tomography of severed root wounds of Prunus serrulata and Zelkova serrata
Author(s) -
Park Junhyung,
Seo Dahye,
Kim Ki Woo
Publication year - 2020
Publication title -
forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 1437-4781
DOI - 10.1111/efp.12622
Subject(s) - phloem , xylem , biology , quercus serrata , prunus , cambium , botany , tracheid , vascular cambium , anatomy
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.