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Degradation of benzene compounds by yeasts in acidic soils
WOUTER J. MIDDELHOVEN, MONIQUE KOOREVAAR and GIJSBERT W. SCHUUR
Plant and Soil
Vol. 145, No. 1 (September I, 1992), pp. 37-43
Published by: Springer
Stable URL: http://www.jstor.org/stable/42939243
Page Count: 7
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Attempts were made to demonstrate the role of yeasts in the degradation of benzene compounds under natural soil conditions. Yeasts were isolated from acidic sandy soil supplied with benzene compounds. For this purpose the 'slant culture method' was used. Growth on the benzene compounds took place on solid growth media at 10°C. Several yeast species were isolated: Leucosporidium scottii, Rhodotorula aurantiaca, Rhodotorula mucilaginosa, Trichosporon dulcitum, Trichosporon moniliiforme and Schizoblastosporion starkeyi-henricii. Cryptococcus humicolus and Cryptococcus laurentii were isolated from liquid enrichment cultures. All these strains assimilated several benzene compounds in pure culture. Cresol removal from contaminated soil was speeded up by inoculation with Rhodotorula aurantiaca G36. It was demonstrated that this yeast utilized this compound in competition with the soil microflora.
Plant and Soil © 1992 Springer