Growth of Trametes versicolor on phenol.

Journal of Industrial Microbiology & Biotechnology
Hyusein YemendzhievZlatka Alexieva

Abstract

Trametes versicolor 1 was shown to grow on phenol as its sole carbon and energy source. The culture growth and degradation ability dependence on culture medium pH value was observed. The optimal pH value of a liquid Czapek salt medium was 6.5. The investigated strain utilized completely 0.5 g/l phenol in 6 days. The dynamics of the phenol degradation process was investigated. The process was characterized by specific growth rate micromax 0.33 h(-1), metabolic coefficient k=4.4, yield coefficient Yx/s=0.23 and rate of degradation Q=0.506 h(-1). The intracellular activities of phenol hydroxylase (0.333 U/mg protein) and cis,cis-muconate lactonizing enzyme (0.41 U/mg protein) were demonstrated for the first time in this fungus. In an attempt to estimate the occurrence of gene sequences in T. versicolor 1 related to phenol degradation pathway a dot blot analysis with total DNA isolated from this strain was performed. Two synthetic oligonucleotides were used as hybridizing probes. One of the probes was homologous to the 5'end of phyA gene coding for phenol hydroxylase in Trichosporon cutaneum ATCC 46490. The other probe was created on the basis of cis,cis-muconate lactonizing enzyme coding gene in T. cutaneum ATCC 58094. The results...Continue Reading

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Citations

Nov 11, 2009·Applied Microbiology and Biotechnology·Kuo-Ling HoDuu-Jong Lee
Mar 26, 2009·Journal of Industrial Microbiology & Biotechnology·Guoying WangChunsheng Qiu
Feb 11, 2014·Applied Microbiology and Biotechnology·Maryam SafariTajalli Keshavarz
May 15, 2020·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Anukool KietkwanbootOramas Suttinun
Aug 14, 2020·Environmental Science and Pollution Research International·Heraldo Baialardi RibeiroGean Delise Leal Pasquali Vargas

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