Enhancement of plant biomass production in conifer trees by altering choloroplast movemment

• Project/Area Number: 15K18713
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Kyushu University
• Principal Investigator: Gotoh Eiji 九州大学, 農学研究院, 助教 (90614256)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 針葉樹 / 生産性向上 / 葉緑体光定位運動 / 葉緑体運動 / 植物生産性 / フォトトロピン / 裸子植物

Outline of Final Research Achievements

Chloroplast is an major organelle of photosynthesis. Chloroplasts move in a cell response to light. Light-induced chloroplast movement enhances plant biomass production in herbaceous plants. In this study, I focus on the conifer trees, and investigated to enhance their plant biomass by altering chloroplast movement. Consequently, I found that plant biomass of seedlings in Cryptomeria japonica and Chamaecyparis obtusa was increased with changing chloroplast intercellular localization.

Research Products

• [Journal Article] Light-induced movements of chloroplasts and nuclei are regulated in both cp-actin-filament-dependent and -independent manners in Arabidopsis thaliana (2016)
  • Author(s): Suetsugu, N., T. Higa, E. Gotoh, and M. Wada
  • Journal Title: PLOS ONE Volume: ー Issue: 6 Pages: 00-00
  • DOI: 10.1371/journal.pone.0157429
  • NAID: 120005766976
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Functional characterization of blue-light-induced responses and PHOTOTROPIN1 gene in Welwitschia mirabilis (2016)
  • Author(s): Kazuhiro Ishishita, Noriyuki Suetusgu, Yuki Hirose, Takeshi Higa, Michio Doi, Masamitsu Wada, Tomonao Matsushita, Eiji Gotoh
  • Journal Title: Journal of Plant Reserch Volume: 129 Issue: 2 Pages: 175-187
  • DOI: 10.1007/s10265-016-0790-7
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 青色光受容体フォトトロピンの機能分化は裸子植物で既に起きていた (2017)
  • Author(s): 石下和宏、後藤真朋、末次憲之、比嘉毅、和田正三、後藤栄治
  • Organizer: 第128回日本森林学会
  • Place of Presentation: 鹿児島大学（鹿児島県・鹿児島市）
  • Year and Date: 2017-03-27
• [Presentation] タイワンスギにおける赤色光受容体フィトクロム分子種の解析 (2017)
  • Author(s): 木藪亮太、吉村知也、牛島智一、松下智直、後藤栄治
  • Organizer: 第128回日本森林学会
  • Place of Presentation: 鹿児島大学（鹿児島県・鹿児島市）
  • Year and Date: 2017-03-27
• [Presentation] CAM植物における青色光依存の気孔開口 (2016)
  • Author(s): 後藤栄治，井上晋一郎，大岩本康平，島崎研一郎，土井道生
  • Organizer: 第80回日本植物学会
  • Place of Presentation: 沖縄コンベンションセンター（沖縄県・宜野湾市）
  • Year and Date: 2016-09-16