Enhancement of biodegradation of 2,7-dichlorodibenzo-p-dioxin by addition of fungal culture filtrate |
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Authors: | Sato Akira Watanabe Tsuneo Watanabe Yoshio Kurane Ryuichiro |
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Institution: | (1) Bioconsortia Program Laboratory, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki Pref, 305-8566, Japan;(2) Bioresource Laboratories, Mercian Corporation, 4-9-1 Johnan, Fujisawa, Kanagawa Pref, 251-0057, Japan;(3) Biological Research Center, National Institute of Technology and Evaluation, 2-5-8 Kazusakamatari, Kisarazu, Chiba Pref, 292-0818, Japan |
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Abstract: | The hydrophilicity of 2,7-dichlorodibenzo-p-dioxin (2,7-DCDD), a model dioxin compound, increased when incubated with the culture filtrates of several strains of fungi. The possibility that the addition of these filtrates could enhance the biodegradation of 2,7-DCDD by the white-rot basidiomycetous fungus Phanerochaete sordida YK-624 was examined. The decrease of 2,7-DCDD after 3 weeks incubation in a YK-624 culture containing these filtrates was greater (30%) than that in the culture of YK-624 alone (15%). This is the first report describing the enhancement of dioxin decrease by the addition of a fungal filtrate. |
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Keywords: | 2 7-DCDD dioxin decrease hydrophilicity Phanerochaete sordida white-rot fungi |
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