Metabolic analysis of Microcystis becoming Water-bloom Algae

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420527
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Civil and environmental engineering
• Research Institution: Tohoku University
• Principal Investigator: Makino Ikuyo 東北大学, 環境・安全推進センター, 助教 (00542060)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: アオコ / Microcystis / メタボローム

Outline of Final Research Achievements

Blue-green algae are distributed worldwide, regardless of country and region, and are one factor posing a serious universal risk to water quality. We studied the effects of water surface and water spatial changes on the chemical ecology of blue-green algae, by using quantitative data of 110 chemicals required for biological activity. Changes in the chemical ecology of blue-green algae were more pronounced due to differences in surface level and medium depth-water which represented vertical motion of cells, as opposed to daytime and nighttime differences related to photosynthesis. With only a maximum difference of 0.5 cm in water depth, it was revealed that concentrations of chemicals which blue-green algae biosynthesizes and metabolizes differed greatly. This concentration difference reflected requirements for cell proliferation.

Free Research Field

水資源工学