Identification and Characterization of High Acid Tolerant and Aluminum Resistant Yeasts Isolated from Tea Soils
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概要
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From acidic tea soils of Kagoshima Prefecture in Japan, some soil properties were determined and 38 strains of acid tolerant microorganisms were isolated. Different Al^<3+> concentrations were applied to YG media to estimate Al resistance. Selected microbial strains could grow strongly in the liquid media in the presence of 100mM Al^<3+> and survive even in 300mM Al^<3+> at pH 3.0. Their base sequences of 28S rDNA-D1/D2 were determined and sequence data were searched using the Basic Local Alignment Search Tool (BLAST) system. The results of sequencing revealed that the isolates belong to two different species, Cryptococcus sp. and Candida palmioleophila. When cultivated with various Al^<3+> concentrations, the yeast growth was inhibited at a concentration of 200mM. Pre-cultivation of these strains with 0-30mM Al^<3+> did not promote the growth response caused by Al^<3+>. Inductively-Coupled Plasma-Mass Spectrometry (ICP-MS) was used to assess the elimination of Al. The amount of Al remaining in culture media was decreased considerably after cultivation. Due to a capacity for resistance to significant Al concentrations as well as high Al elimination, these acid tolerant and Al resistant yeasts may have potential applications in the bio-and phyto-remediation of Al and acid-contaminated soils.
- 社団法人日本土壌肥料学会の論文
著者
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Chau Ngo
Laboratory Of Soil Microbiology Division Of Bioresource And Bioenvironmental Science Graduate School
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Kanazawa Shinjiro
Laboratory of Soil Microbiology,Division of Soil Science and Plant Production,Department of Plant Re
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Kanazawa Shinjiro
Laboratory Of Soil Microbiology Department Of Plant Resources Faculty Of Agriculture Kyushu Universi
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Miyaki Shintaro
Laboratory of Soil Microbiology, Division of Bioresource and Bioenvironmental Science, Graduate Scho
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Kanazawa Shinjiro
Laboratory Of Soil Microbiology Division Of Bioresource And Bioenvironmental Science Graduate School
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Miyaki Shintaro
Laboratory Of Soil Microbiology Division Of Bioresource And Bioenvironmental Science Graduate School
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Ngo Thi
Laboratory of Soil Microbiology, Division of Bioresource and Bioenvironmental Science, Graduate School of Kyushu University
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