The molecular mechanism of light-induced germination in resting spores of a coastal diatom

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450253
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Aquatic bioproduction science
• Research Institution: Fisheries Research and Education Agency
• Principal Investigator: Shikata Tomoyuki 国立研究開発法人水産研究・教育機構, 瀬戸内海区水産研究所, 研究員 (40603048)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 赤潮 / 光 / 光合成 / プロテオーム解析 / 発芽 / 休眠胞子

Outline of Final Research Achievements

We examined the molecular mechanism of light-induced germination in resting spore of a coastal diatom. Photosynthetic activity of resting spore increased just after light-on. Quantity of photosynthetic proteins scarcely changed after light-on, but ATPase increased. Furthermore, proteome analysis indicated that proteins involved in citric cycle, glycometabolism, singling and nutritional metabolism are newly expressed after light-on. These results suggest a scenario that the resting spore used energy to activate nutritional metabolism and so on after light-on, and then photosynthesize to elongate and germinate.

Free Research Field

赤潮藻類の生理生態学