神戸大学附属図書館デジタルアーカイブ
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https://hdl.handle.net/20.500.14094/90008225
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2024-04-20
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90008225 (fulltext)
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メタデータID
90008225
アクセス権
open access
出版タイプ
Version of Record
タイトル
Tissue growth constrains root organ outlines into an isometrically scalable shape
著者
Fujiwara, Motohiro ; Goh, Tatsuaki ; Tsugawa, Satoru ; Nakajima, Keiji ; Fukaki, Hidehiro ; Fujimoto, Koichi
著者名
Fujiwara, Motohiro
著者名
Goh, Tatsuaki
著者名
Tsugawa, Satoru
著者名
Nakajima, Keiji
著者ID
A0018
研究者ID
1000080324979
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=74bef5a155a2f6b3520e17560c007669
著者名
Fukaki, Hidehiro
深城, 英弘
フカキ, ヒデヒロ
所属機関名
理学研究科
著者名
Fujimoto, Koichi
収録物名
Development
巻(号)
148(4)
ページ
dev196253
出版者
Company of Biologists
刊行日
2021-02-26
公開日
2021-04-28
抄録
Organ morphologies are diverse but also conserved under shared developmental constraints among species. Any geometrical similarities in the shape behind diversity and the underlying developmental constraints remain unclear. Plant root tip outlines commonly exhibit a dome shape, which likely performs physiological functions, despite the diversity in size and cellular organization among distinct root classes and/or species. We carried out morphometric analysis of the primary roots of ten angiosperm species and of the lateral roots (LRs) of Arabidopsis, and found that each root outline was isometrically scaled onto a parameter-free catenary curve, a stable structure adopted for arch bridges. Using the physical model for bridges, we analogized that localized and spatially uniform occurrence of oriented cell division and expansion force the LR primordia (LRP) tip to form a catenary curve. These growth rules for the catenary curve were verified by tissue growth simulation of developing LRP development based on time-lapse imaging. Consistently, LRP outlines of mutants compromised in these rules were found to deviate from catenary curves. Our analyses demonstrate that physics-inspired growth rules constrain plant root tips to form isometrically scalable catenary curves.
キーワード
Catenary curve
Organ shape
Plant root tip
Scaling
Anisotropic growth
Developmental constraint
カテゴリ
理学研究科
学術雑誌論文
権利
© 2021. Published by The Company of Biologists Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
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資源タイプ
journal article
言語
English (英語)
ISSN
0950-1991
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eISSN
1477-9129
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関連情報
DOI
https://doi.org/10.1242/dev.196253
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