Investigation on the diversity of CO2 diffusion during photosynthesis of rice and establish a model based on multiple data

• Project/Area Number: 26850009
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Crop production science
• Research Institution: University of Hyogo (2015-2016); National Institute for Agro-Environmental Sciences (2014)
• Principal Investigator: Kodama Naomi 兵庫県立大学, 環境人間学部, 客員研究員(研究員) (60594611)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 光合成 / 葉内コンダクタンス / 安定同位体 / イネ光合成 / 二酸化炭素拡散効率 / 炭素同位体 / 生育予測・モデル

Outline of Final Research Achievements

The purpose of research is firstly to establish the system to measure CO2 diffusional conductance inside leaves efficiently for collecting multiple data and propose an empirical model based on the data. In addition, CO2 diffusional conductance inside leaves is supposed to be influenced mainly light intensity and drought, thus this research investigated the influence of the environmental factor on the CO2 diffusional conductance inside leaves.
This research has successfully established a system to measure CO2 diffusional conductance inside leaves efficiently and I am going to publish this result publicly. This research mainly was firstly aimed to deal with rice as a research target, however it was found difficult to measure multiple rice subspecies at the same age while maintaining the conditions therefore this research fundamentally failed to collect multiple data of rice so far. Therefore, it has been so far impossible to publish data.

Research Products

• [Int'l Joint Research] WSL(スイス)
• [Journal Article] Rapid response of leaf photosynthesis in two fern species Pteridium aquilinum and Thelypteris dentata to changes in CO2 measured by tunable diode laser absorption spectroscopy (2015)
  • Author(s): Keisuke Nishida, Naomi Kodama, Seiichiro Yonemura, Yuko T Hanba
  • Journal Title: Journal of plant research Volume: 128 Pages: 777-789
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Harpin Hpa1 Interacts with Aquaporin PIP1; 4 to Promote the Substrate Transport and Photosynthesis in Arabidopsis (2015)
  • Author(s): Liang Li, Hao Wang, Jorge Gago, Haiying Cui, Zhengjiang Qian, Naomi Kodama, Hongtao Ji, Shan Tian, Dan Shen, Yanjuan Chen, Fengli Sun, Zhonglan Xia, Qing Ye, Wei Sun, Jaume Flexas, Hansong Dong
  • Journal Title: Scientific reports Volume: 5 Issue: 1 Pages: 1-10
  • DOI: 10.1038/srep17207
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Automated analysis of two-dimensional positions and body lengths of earthworms (Oligochaeta); MimizuTrack. (2014)
  • Author(s): Kodama, N., Kimura, T., Yonemura, S., Kaneda. S., Ohashi, M., Ikeno, H.
  • Journal Title: PLoS ONE Volume: 9 Issue: 6 Pages: e97986-e97986
  • DOI: 10.1371/journal.pone.0097986
  • Peer Reviewed / Open Access
• [Book] Handbook of Photosynthesis, Third Edition (2016)
  • Author(s): N. Kodama and W. Yamori
  • Total Pages: 12
  • Publisher: CRC Press