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2020 Fiscal Year Annual Research Report

From nutrients to root shape: How nutrients alter root mechanics and shape for an efficient uptake

Research Project

Project/Area Number 19K23661
Research InstitutionThe University of Tokyo

Principal Investigator

バイヤー マルセル・パスカル  東京大学, 大学院農学生命科学研究科(農学部), 特任助教 (30850367)

Project Period (FY) 2019-08-30 – 2021-03-31
KeywordsPlant / Mechanics / Nutrition
Outline of Annual Research Achievements

The central point of this project was to shed light on the influence of nutrients and their uptake on the mechanical behavior of roots. It it is known that the root growth adjusts to nutrients. However, how nutrients alter the mechanical properties of the root is not fully understood. During the last year we confirmed that a root response (bending) in Arabidopsis can only be observed under rotation (which leads to a drastic decrease in gravity sensing). It therefore seems rather different from the phenotype that was observed for Rice. With the help of RNA sequencing we were able to narrow down the targets responsible for the phenotype. Unfortunately it will take longer for these results to be published. The need of rotation for the phenotype emergence makes it rather difficult to use this phenotype for the determination of mechanical properties in the developed microdevice. To be able to use the microdevice for the intended determination of the Youngs modulus of the root, we switched to Boron nutrition. We were able to measure the influence of a nutrient (Boron) on the mechanical stiffness of the root. Furthermore, the effects of sucrose supply on the mechanical properties of roots is progressing. We were able to show a sucrose based alteration of the root diameter and the mechanical properties. These results were presented in international meetings. The analysis is still ongoing with the purpose of finding key regulatory genes. Taken together, substantial progress has been made in the analysis of mechanical property changes caused by nutrients and the metabolic state.

Remarks

The major findings describes were so far only presented in international meetings. 1 article is in revision, more will follow later. The articles listed contain some additional information.

  • Research Products

    (7 results)

All 2021 2020

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 4 results) Book (1 results)

  • [Journal Article] The function of high‐affinity urea transporters in nitrogen‐deficient conditions2020

    • Author(s)
      Beier Marcel P.、Kojima Soichi
    • Journal Title

      Physiologia Plantarum

      Volume: 171 Pages: 802~808

    • DOI

      10.1111/ppl.13303

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Root shape adaptation to mechanical stress derived from unidirectional vibrations in <i>Populus nigra</i>2020

    • Author(s)
      Beier Marcel Pascal、Tsugawa Satoru、Demura Taku、Fujiwara Toru
    • Journal Title

      Plant Biotechnology

      Volume: 37 Pages: 423~428

    • DOI

      10.5511/plantbiotechnology.20.0813a

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Boron induced stiffness changes in Arabidopsis roots2021

    • Author(s)
      Yunshu Wang, Marcel Pascal Beier, Shumpei Hayashi, Kyoko Miwa, Hirotaka Hida, Toru Fujiwara
    • Organizer
      The 62th Annual Meeting of the Japanese Society of Plant Physiology Mar 16, 2021
    • Int'l Joint Research
  • [Presentation] Sucrose alters Arabidopsis thaliana root diameter and mechanics2021

    • Author(s)
      Marcel Pascal Beier, Shumpei Hayashi, Hirotaka Hida, Kyoko Miwa, Toru Fujiwara
    • Organizer
      The 62th Annual Meeting of the Japanese Society of Plant Physiology Mar 16, 2021
    • Int'l Joint Research
  • [Presentation] Arabidopsis root adaption to sucrose2020

    • Author(s)
      Beier MP, Hayashi S, Miwa K, Hida H, Fujiwara T
    • Organizer
      Soil Science and Plant Nutrition meeting 2020
    • Int'l Joint Research
  • [Presentation] The influence of sucrose on Arabidopsis root diameter and mechanics2020

    • Author(s)
      Beier MP, Hayashi S, Miwa K, Hida H, Fujiwara T
    • Organizer
      The 61th Annual Meeting of the Japanese Society of Plant Physiology Mar 19, 2020
    • Int'l Joint Research
  • [Book] Progress in Botany Vol. 822021

    • Author(s)
      Soichi Kojima, Keiki Ishiyama, Marcel Pascal Beier, Toshihiko Hayakawa
    • Total Pages
      211-231
    • Publisher
      Springer Nature
    • ISBN
      978-3-030-68620-8

URL: 

Published: 2021-12-27  

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