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

2017 Fiscal Year Final Research Report

• 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
• 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

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.

Free Research Field

植物生理生態学