Glycosphingolipids as a Possible Signature of Microbial Communities in Activated Sludge and the Potential Contribution of Fungi to Wastewater Treatment under Cold Conditions

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概要

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• Seven strains of fungi were isolated from activated sludge and identified as Mucor sp., Geotrichum sp., Trichosporon sp., Candida sp., and Trichoderma sp. by 28S rDNA D2 region sequences analysis. The structures of the main ceramide monosaccharides (CMSs) from these fungi were identified as glucosylceramide (GlcCer) consisting of ceramide moieties of 9-methyl-octadeca-sphingadienine (9-Me d18:2), with 2-hydroxyhexadecanoate (h16:0) (Mucor sp. and Geotrichum sp.), 2-hydroxyoctadecanoate (h18:0) (Trichosporon sp. and Candida sp.), and 2-hydroxyoctadecenoate (h18:1) (Trichoderma sp.). Seasonal changes in glycosphingolipids in activated sludge suggest the possibility that microbial flora in activated sludge changes with the seasons, and that fungi adaptable to low temperatures dominate in the cold period, resulting in the maintenance of stable effluent quality. Mucor sp., Geotrichum sp., and Candida sp. satisfactorily reduced the BOD of synthetic sewage at 10 °C. These results indicate that fungi in activated sludge can contribute to wastewater treatment in cold conditions.

• 社団法人 日本農芸化学会の論文
• 2008-10-23

著者

• Kushi Yasunori

  The United Graduate School Of Agriculture Sciences Iwate University

• Nozaki Hirofumi

  Department Of Agricultural And Life Science Obihiro University Of Agriculture And Veterinary Medicin

• TSUGE Junichi

  The United Graduate School of Agriculture Sciences, Iwate University

• HIRATSUKA Hiroko

  Department of Agricultural and Life Science, Obihiro University of Agriculture and Veterinary Medici

• KAMIMIYA Hisashi

  Department of Agricultural and Life Science, Obihiro University of Agriculture and Veterinary Medici

• Tsuge Junichi

  The United Graduate School Of Agriculture Sciences Iwate University

• Kamimiya Hisashi

  Department Of Agricultural And Life Science Obihiro University Of Agriculture And Veterinary Medicin

• Hiratsuka Hiroko

  Department Of Agricultural And Life Science Obihiro University Of Agriculture And Veterinary Medicin

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