マイクロデバイス利用に向けたマイクロフォーカスX線CTによる植物個体成長モニタリング

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2024/03/01

タイトル(英語): Monitoring Plant Growth by Analyzing Their Morphology Using Microfocus X-ray CT

著者名: 國枝　正（奈良先端科学技術大学院大学先端科学技術研究科），林　真衣香（奈良先端科学技術大学院大学先端科学技術研究科），熊谷　凌（奈良先端科学技術大学院大学先端科学技術研究科），松浦　範彰（奈良先端科学技術大学院大学先端科学技術研究科），春田　牧人（奈良先端科学技術大学院大学先端科学技術研究科／公立千歳科学技術大学理工学部電子光工学科），太田　淳（奈良先端科学技術大学院大学先端科学技術研究科），出村　拓（奈良先端科学技術大学院大学先端科学技術研究科）

著者名(英語): Tadashi Kunieda (Graduate School of Science and Technology, Nara Institute of Science and Technology), Maika M. Hayashi (Graduate School of Science and Technology, Nara Institute of Science and Technology), Ryo Kumagai (Graduate School of Science and Technology, Nara Institute of Science and Technology), Noriaki Matsuura (Graduate School of Science and Technology, Nara Institute of Science and Technology), Makito Haruta (Graduate School of Science and Technology, Nara Institute of Science and Technology/Faculty of Science and Engineering, Department of Opto-Electronic System Engineering, Chitose Institute of Science and Technology), Jun Ohta (Graduate School of Science and Technology, Nara Institute of Science and Technology), Taku Demura (Graduate School of Science and Technology, Nara Institute of Science and Technology)

キーワード: マイクロフォーカスX線CT，植物成長，3次元構造，形状解析　　microfocus X-ray CT，plant growth，three-dimensional structure，morphological analysis

要約(英語): The growth and development of embryophytes is deeply influenced by environmental stimuli, such as light, temperature and soil nutrients. Understanding the mechanisms underlying the growth response of plants to environmental stimuli is crucial for agriculture. In this study, we examined the morphology of a flowering plant, Arabidopsis thaliana, using microfocus X-ray computed tomography (μCT), which enables non-destructive analysis of the external and internal structures of plants. Three-dimensional (3D) images of the plant, which were reconstructed from X-ray scanned data, clearly showed the shapes of its leaves, stems, and buds from any angle. At a higher magnification, the mCT also revealed the small hair-like structures called trichomes on the Arabidopsis leaf epidermis. However, motion artifacts found in the 3D-reconstructed images indicated that plant's growth rate was faster than scanning speed. Thus, scan parameters must be accordingly optimized. Additionally, CT-based 3D printing can be used to design micro devices that can be further used to monitor plant growth. These results suggest that μCT is a useful technique for analyzing morphology of growing plants.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.144 No.3 （2024） 特集：IoT農業に向けた生体計測マイクロデバイス

本誌掲載ページ: 44-49 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/144/3/144_44/_article/-char/ja/