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- W137193340 abstract "Research Article| August 01 1988 Effect of Chelating Agents on the Growth of Blue-Green Algae and the Release of Geosmin M. Miwa; M. Miwa Search for other works by this author on: This Site PubMed Google Scholar K. Morizane K. Morizane Search for other works by this author on: This Site PubMed Google Scholar Water Sci Technol (1988) 20 (8-9): 197–203. https://doi.org/10.2166/wst.1988.0243 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search nav search search input Search input auto suggest search filter All ContentAll JournalsThis Journal Search Advanced Search Citation M. Miwa, K. Morizane; Effect of Chelating Agents on the Growth of Blue-Green Algae and the Release of Geosmin. Water Sci Technol 1 August 1988; 20 (8-9): 197–203. doi: https://doi.org/10.2166/wst.1988.0243 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The effect of chelating agents on the growth of Anabaenamacrospora, a planktonic blue-green algae, and on its production of geosmin was studied.When A.macrospora was cultured in CT medium containing EDTA (an artificial chelator), the maximum cell numbers were about 1×106 cells/ml. However, in an EDTA-free CT medium, the maximum cell numbers were a tenth of the normal growth level in the complete medium. In addition the chlorophyll-a content was reduced almost a fourth and the color of the algal cell bodies changed from green to yellow. These results showed that growth of this alga in a chelator-free medium was not healthy. At this time, though the geosmin content was constant and in the same range of 1.0-4.0×10−5 ng/cell as in the complete medium, the ratio of the extracellular geosmin concentration in the medium to the gross concentration was 2:10 to 3:10 and 2 to 3 times its normal level. It was considered that the deterioration of alga's physiological condition increased the release of geosmin to the medium. These results suggested that the extracellular concentration of geosmin produced by A.macrospora was affected by the alga's physiological condition. Finally EDTA can be substituted by humic acid. When this alga was grown in a medium containing humic acid instead of EDTA, the maximum cell numbers and the release ratio of geosmin was of the same level as in the case of the complete medium. Blue-green algae, Anabaenamacrospora, musty odor, geosmin, chelating agent This content is only available as a PDF. © IWA Publishing 1988 You do not currently have access to this content." @default.
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- W137193340 title "Effect of Chelating Agents on the Growth of Blue-Green Algae and the Release of Geosmin" @default.
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