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Cresols utilization by Trametes versicolor and substrate interactions in the mixture with phenol

, : Cresols utilization by Trametes versicolor and substrate interactions in the mixture with phenol. Biodegradation 21(4): 625-635

The ability of the white rot fungus Trametes versicolor strain 1 to degrade and utilize methylated phenols (cresols) was established for the first time in a medium not containing any other carbon components. The data obtained demonstrated the better potential of the strain to assimilate p-cresol instead of o- or m- cresol. The 0.5 g/l p-cresol provided was degraded in full after 96 h. The effect of a dual substrate mixture (0.3 g/l phenol + 0.2 g/l p-cresol) on the growth behavior and degradation capacity of the investigated strain was examined. The cell-free supernatants were analyzed by HPLC. It was established that the presence of p-cresol had not prevented complete phenol degradation but had a significant delaying effect on the phenol degradation dynamics. Phenol hydroxylase, catechol 1.2-dioxygenase and cis,cis-muconate cyclase activities were obtained in conditions of single and mixed substrates cultivation. The influence of different phenolic substrates on phenol hydroxylase activity in Trametes versicolor 1 was established. The mathematical models describing the dynamics of single substrates' utilization as well as the mutual influence of phenol and p-cresol in the mixture were developed on the bases of Haldane kinetics. The estimated interaction coefficients (I(ph/cr) = 4.72, I(cr/ph) = 7.46) demonstrated the significant inhibition of p-cresol on phenol biodegradation and comparatively low level of influence of phenol presence on the p-cresol degradation. Molecular 18S RNA gene taxonomy of the investigated strain was performed.


PMID: 20127146

DOI: 10.1007/s10532-010-9330-7

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Fodor, Kán.; Harmat, V.; Hetényi, C.; Kardos, József.; Antal, József.; Perczel, Aás.; Patthy, Aás.; Katona, G.; Gráf, László., 2005: Extended intermolecular interactions in a serine protease-canonical inhibitor complex account for strong and highly specific inhibition. We have previously shown that a trypsin inhibitor from desert locust Schistocerca gregaria (SGTI) is a taxon-specific inhibitor that inhibits arthropod trypsins, such as crayfish trypsin, five orders of magnitude more effectively than mammalian tr...

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Maas, H.J.L., 1961: Twin chicks, a rare observation. Literature on the occurrence of double-yolked eggs and of twinning in the domestic fowl is reviewed, and a recent case of twinning is reported. On 10th April, 1959, a Dutch breeder obtained 12 chicks, including a set of twins, from 11 eggs in one...

Araujo, J.L.; Towpik, E.; Kupiec-Weglinski, J.W.; Tilney, N.L., 1984: Cyclosporin: experimental studies and clinical use in organ transplants. Revista de Investigacion Clinica; Organo del Hospital de Enfermedades de la Nutricion 36(4): 367-376

Morozov, V.I.; Grechushkina, V.A.; Gagal'chiĭ, D.A.; Smirnova, L.G.; Baranova, S.M., 1973: Parametral ocular prosthesis. Vestnik Oftalmologii 3: 55-57

Pak, C.Y.; Hayashi, Y.; Arnold, L.H., 1976: Heterogeneous nucleation with urate, calcium phosphate and calcium oxalate. Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine 153(1): 83-87

Kohli, R.N.; Mohammadian, B.; Saiyari, M., 2007: A retrospective study on the incidence of bovine external neoplasms in south-western Iran. A retrospective study of 893 bovine surgical patients presented for examination and treatment during an 8-year period at the Veterinary Hospital of the Department of Veterinary Clinical Sciences of Shahid Chamran University, Ahwaz, located in the...

Agusti, M.; Almela, V.; Juan, M.; Mesejo, C.; Martinez Fuentes, A., 2003: Rootstock influence on the incidence of rind breakdown in 'Navelate' sweet orange. The influence of three rootstocks, Carrizo citrange (Citrus sinensis (L.) Osb.XPoncirus trifoliata (L.) Raf.), Cleopatra mandarin (Citrus reshni Hort. ex Tanaka) and sour orange (Citrus aurantium L.) on the incidence and severity of rind breakdown...

Polyanskaya, L.A., 1965: Concentration of ascorbic acid and carotene in cotton varieties differing in their early ripening. Izv Akad Nauk Turkm Ssr Ser Biol Nauk: