Abstract：
:Dichomitus squalens efficiently decolorized both Orange G and Remazol Brilliant Blue R (RBBR) at concentrations of 0.5gl(-1) and 3gl(-1) in static and shaken culture and also on solid medium within 14d. The presence of the dyes in the culture medium mostly caused a decrease in biomass production and in growth rate, which was more significant in the case of RBBR. After 14d of cultivation, electron microscopy showed substantial morphological changes in mycelia of D. squalens growing in media containing dyes. The hyphae deformations were more intensively manifested in solid media than in liquid culture. In all the cases, the morphological changes were more prominent in the presence of RBBR. Higher concentrations of both dyes brought about more intensive changes. The toxicity of synthetic dyes Orange G and RBBR was tested using a bioassay based on the growth inhibition of duckweed Lemna minor. Two endpoints such as the number of fronds and their weight were studied during the bioassay. The results showed higher toxicity of RBBR than that of Orange G. The toxicity of both dyes decreased after the decolorization process.
journal_name
Chemospherejournal_title
Chemosphereauthors
Eichlerová I,Homolka L,Benada O,Kofronová O,Hubálek T,Nerud Fdoi
10.1016/j.chemosphere.2007.04.083subject
Has Abstractpub_date
2007-10-01 00:00:00pages
795-802issue
5eissn
0045-6535issn
1879-1298pii
S0045-6535(07)00610-8journal_volume
69pub_type
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