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Functional analysis of LjSYP132s, a regulator of vesicular transport, in nodule and seed formation.

Research Project

Project/Area Number 21K05327
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38010:Plant nutrition and soil science-related
Research InstitutionKagawa University

Principal Investigator

Nomura Mika  香川大学, 農学部, 教授 (50294749)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsSNARE / Nodule / Legume / nitrogen fixation / Lotus japonicus / nodule / LORE1 mutant / legume / LjSYP132 / スプライスバリアント / 根粒 / 花粉管伸長 / 共生 / マメ科植物
Outline of Research at the Start

根粒菌がマメ科植物に感染すると根粒器官を形成し、共生窒素固定を行う。申請者は、根粒形成・窒素固定形成のための膜輸送に関与するLjSYP132sは、選択的スプライシングによりスプライスバリアントを生産し、LjSYP132aは感染糸からシンビオゾームへ到達する根粒形成メカニズムに、LjSYP132bは花粉管が伸長して受精の場へ到達する種子形成メカニズムに関与していることを見出した。本申請課題では、LjSYP132sのスプライスバリアントに着目し、未だその制御機構が不明な選択的スプライシングの実体についてその全容を解明することを目標としている。

Outline of Final Research Achievements

In this project, we focused on the splice variants of LjSYP132s and investigated their subcellular localization and functional complementation, and determined the cis region important for selective splicing, aiming to elucidate the whole picture of selective splicing, whose regulatory mechanism is still unknown. The results of the analysis using the LjSYP132bLORE1 mutant showed that the expression of LjSYP132a increased when the expression of LjSYP132b decreased. The localization of LjSYP132a and LjSYP132b in FLAG-tagged cells was also confirmed, indicating that neither LjSYP132a nor LjSYP132b changes localization.

Academic Significance and Societal Importance of the Research Achievements

本申請課題では、LjSYP132sのスプライスバリアントに着目し、それぞれの細胞内局在性と機能相補性を調べ、選択的スプライシングに重要なシス領域を決定することで未だその制御機構が不明な選択的スプライシングの実体についてその全容を解明することを目標としている。根粒形成と花粉管伸長の共通性が明らかになれば、根粒形成メカニズムの進化のルーツを解き明かすことができると期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (14 results) (of which Int'l Joint Research: 8 results) Remarks (3 results)

  • [Journal Article] Mangrove crab intestine and habitat sediment microbiomes cooperatively work on carbon and nitrogen cycling2021

    • Author(s)
      Tongununui Prasert、Kuriya Yuki、Murata Masahiro、Sawada Hideki、Araki Michihiro、Nomura Mika、Morioka Katsuji、Ichie Tomoaki、Ikejima Kou、Adachi Kohsuke
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 12 Pages: e0261654-e0261654

    • DOI

      10.1371/journal.pone.0261654

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of Cellulolytic Bacteria on Nitrogen-Fixing Bacteria, 16S rRNA, nifH Gene Abundance, and Chemical Properties of Water Hyacinth Compost2021

    • Author(s)
      Chungopast Sirinapa、Yodying Preecha、Nomura Mika
    • Journal Title

      Journal of Soil Science and Plant Nutrition

      Volume: 21 Issue: 1 Pages: 768-779

    • DOI

      10.1007/s42729-020-00399-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Microbial diversity of sugarcane for production of Wasanbon sugar in Kagawa, Japan2024

    • Author(s)
      Mika Nomura
    • Organizer
      International workshop on plant mineral transport
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A genome DNA sequencing analysis of a root bacteria from water floating legume,2024

    • Author(s)
      Shigeyuki Tajima, Pilunthana Thapanapongworakul, Aoi Sogawa, Mika Nomura
    • Organizer
      The 6th Asian-Pacific Conference on Plant-Microbe symbiosis and nitrogen fixation
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ミヤコグサ根粒共生系におけるMesorhizobium lotiのシステイニルtRNA合成酵素の役割2024

    • Author(s)
      福留光挙,生田愛珠佳,野村美加,内海俊樹
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Functional analysis by alternative splicing of SNARE genes, LjSYP132 in Lotus japonicus2023

    • Author(s)
      Haruka Uetsuji, Kotona Hatano, Issei Takahashi, Mitsutaka Fukudome and Mika Nomura
    • Organizer
      12th International Forum on Advanced Genomics Environmental and Resource Genomics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Functional analysis of LjDof3 transcription factor expressed specifically in nodules.2023

    • Author(s)
      Ryo Matsushita, Rika Sakurada, Takenori Kawauchi, Mitsutaka Fukudome, Mika Nomura
    • Organizer
      12th International Forum on Advanced Genomics Environmental and Resource Genomics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of iron excess on growth and symbiosis in nodules of Lotus japonicus and the role of Ljfer32023

    • Author(s)
      Nanami Kuwahara, Mitutaka Fukudome, Mika Nomura.
    • Organizer
      12th International Forum on Advanced Genomics Environmental and Resource Genomics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 鉄濃度変化がミヤコグサ根粒形成と側根形成に及ぼす影響2023

    • Author(s)
      桑原七実,福留光挙,野村美加
    • Organizer
      日本土壌肥料学会関西支部会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Expression and localization of SNARE genes, LjSYP132a and LjSYP132b in Lotus japonicus nodule2022

    • Author(s)
      Kotona Hatano, Haruka Uetsuji, Issei Takahashi, Naoki Yamaji, Jian Feng Ma, Mitutaka Fukudome, Mika Nomura
    • Organizer
      Kagawa International Forum on Advanced Genomics Environmental and Resource Genomics and Life Sciences
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of iron for the growth and symbiosis in Lotus japonicus nodule2022

    • Author(s)
      Nanami Kuwahara, Mitutaka Fukudome, Mika Nomura
    • Organizer
      Kagawa International Forum on Advanced Genomics Environmental and Resource Genomics and Life Sciences
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 微生物資材「ゆめバイオ」が畑作物の生育及び収量に及ぼす影響2022

    • Author(s)
      安井博昭, 諸隈正裕, 野村美加, 水田圭祐, 豊田正範, 堀口亨平, 横山正
    • Organizer
      作物学会関西支部
    • Related Report
      2022 Research-status Report
  • [Presentation] 鉄濃度変化がミヤコグサ根粒形成と側根形成に及ぼす影響2022

    • Author(s)
      桑原七実,福留光挙,野村美加
    • Organizer
      日本土壌肥料学会関西支部会
    • Related Report
      2022 Research-status Report
  • [Presentation] Requirement of Qa-SNARE LjSYPs for nodulation and seed development in Lotus japonicus2021

    • Author(s)
      Aoi Sogawa, Issei Takahashi, Masaharu Kyo, Haruko, Imaizumi-Anraku, Shigeyuki Tajima, Mika Nomura
    • Organizer
      14th European Nitrogen Fixation Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] LjSYP132aとLjSYP132bの根粒形成及び、種子形成への関与2021

    • Author(s)
      高橋一成, 十川蒼, 上野陽菜, 野村美加
    • Organizer
      植物微生物研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 「夢バイオ」バイオ肥料を用いたイネ成長促進の検証2021

    • Author(s)
      秦野琴菜,諸隈正裕,横山正,見城貴志,小島克洋,堀口享平,野村美加
    • Organizer
      日本土壌肥料学会関西支部会
    • Related Report
      2021 Research-status Report
  • [Remarks]

    • URL

      https://www.ag.kagawa-u.ac.jp/nomura/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 香川大学農学部野村研究室

    • URL

      https://www.ag.kagawa-u.ac.jp/nomura/

    • Related Report
      2021 Research-status Report
  • [Remarks] 植物ゲノム遺伝子源解析センター

    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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