Effect of light irradiation pattern on leaf functional traits and carbon fixation efficiency

Research Project

Project/Area Number	16K18628
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Ecology/Environment
Research Institution	National Institute for Environmental Studies
Principal Investigator	Tomimatsu Hajime 国立研究開発法人国立環境研究所, 生物・生態系環境研究センター, 特別研究員 (70598458)
Project Period (FY)	2016-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000) Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords	環境応答 / 光変動 / 高CO2 / 光合成 / 気孔コンダクタンス / 馴化 / シロイヌナズナ / 成長速度 / 植物生理生態
Outline of Final Research Achievements	Natural light environment has very heterogeneity of temporally and spatially. In this study, we investigated the effects of light irradiation pattern on plant functional traits during plants growth. We found that the individual growth rate and flowering period are promoted as the light irradiation interval is longer even if accumulated photon flux density a day is the same. We suggested that these effects of light irradiation patterns are also affected by the stomatal opening by cultivation experiments using mutants always stomata open.