Solid-plate experiments, evaluating the dye decolorization potential of white-rot fungi, equally good results with different Pleurotus species and isolates were found e.g. with P. lindquistii (Levin L., 2005), P. florida (Sathiya et al., 2007), P. ostreatus (~93% decolorization of Reactive dye 222, on the 6th day of incubation) (Kiran et al., 2012).The biodegradation of three azo dyes (Congo red, Orange II and Tropaeolin O) was done by the fungus Phaenerocheate chrysosporium (Cripps et al., 1990). Kitwechkun and Khanongnuch (36) studied the decolourization of azo dye (Orange II) by immobilized white rot fungus Coriolus versicolor (Kitwechkun and Khanongnuch, 2004).A group of researchers evaluated the possibility of a fungal wastewater treatment for a mixture of bioaccessible reactive azo dyes using biodegradation assays (Martins et al., 2003). Whiterot fungus Ph. tremellosa was found capable of decolorizing an array of synthetic textile dyes (Kirby  et al., 2000).                                  The first dye decolourization by white rot fungi Phanerochaete chrysosporium was reported (Tien and Kirk, 1983). Other white rot such as Hirschioporus larincinus, Inonotus hispidus, Phlebia tremellosa and Coriolus versicolor can be used to decolorise dye effluent (Banat et al., 1996). Later on 29 other white rot fungi capable of dye decolourization were surveyed (Wesenberg et al. 2003). Decolorisation of dyes by using lignin modifying enzymes were studied extensively using laccase from Trametes versicolor (Khammuang et al., 2009), Trametes hirsute, Trametes modesta, Sclerotium roysii (Nyanhongo et al., 2002), Laccaria fraterna, Pleurotus ostreatus (Balaraju et al., 2007), Lentinus polychrous (Khammuang and Rakrudee, 2009); LiP from Phanerochaete chrysosporium and MnP from Phanerochaete chrysosporium, Bjerkandera adusta, Pleurotus eryngii (Heinfling et al., 1998).

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