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Mechanistic Insights into Plant Chiral Growth

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dc.contributor.author Nakamura, Masayoshi
dc.contributor.author Hashimoto, Takashi
dc.date.accessioned 2021-10-27T01:14:02Z
dc.date.available 2021-10-27T01:14:02Z
dc.date.issued 2020-12-11
dc.identifier.uri http://hdl.handle.net/10061/14514
dc.description.abstract The latent left–right asymmetry (chirality) of vascular plants is best witnessed as a helical elongation of cylindrical organs in climbing plants. Interestingly, helical handedness is usually fixed in given species, suggesting genetic control of chirality. Arabidopsis thaliana, a small mustard plant, normally does not twist but can be mutated to exhibit helical growth in elongating organs. Genetic, molecular and cell biological analyses of these twisting mutants are providing mechanistic insights into the left–right handedness as well as how potential organ skewing is suppressed in most plants. Growth direction of elongating plant cells is determined by alignment of cellulose microfibrils in cell walls, which is guided by cortical microtubules localized just beneath the plasma membrane. Mutations in tubulins and regulators of microtubule assembly or organization give rise to helical arrangements of cortical microtubule arrays in Arabidopsis cells and cause helical growth of fixed handedness in axial organs such as roots and stems. Whether tubulins are assembled into a microtubule composed of straight or tilted protofilaments might determine straight or twisting growth. Mechanistic understanding of helical plant growth will provide a paradigm for connecting protein filament structure to cellular organization. ja_JP
dc.language.iso en ja_JP
dc.publisher MDPI ja_JP
dc.relation.isreplacedby https://www.mdpi.com/2073-8994/12/12/2056 ja_JP
dc.rights © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). ja_JP
dc.subject helical growth ja_JP
dc.subject handedness ja_JP
dc.subject microtubule ja_JP
dc.subject tubulin ja_JP
dc.subject Arabidopsis thaliana ja_JP
dc.title Mechanistic Insights into Plant Chiral Growth ja_JP
dc.type.nii Journal Article ja_JP
dc.contributor.transcription ナカムラ, マサヨシ
dc.contributor.transcription ハシモト, タカシ
dc.contributor.alternative 中村, 匡良
dc.contributor.alternative 橋本, 隆
dc.textversion none ja_JP
dc.identifier.eissn 2073-8994
dc.identifier.jtitle Symmetry ja_JP
dc.identifier.volume 12 ja_JP
dc.identifier.issue 12 ja_JP
dc.relation.doi 10.3390/sym12122056 ja_JP
dc.identifier.NAIST-ID 73290157 ja_JP

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