Agar-plate screening for textile dye decolorisation by white rot fungi Pleurotus species (Pleurotus cornucopiae var.citrinopileatus, P. djamor, P. eryngii, P. ostreatus and P. sajor-caju)

A screening test for five different white rot fungal strains (Pleurotus species: Pleurotus cornucopiae var. citrinopileatus, P. djamor, P. eryngii, P. ostreatus and P. sajor-caju) was carried out to assess their decolorisation capacities for five different textile dyestuffs, namely Indanthren yellow F3GC Collosiol (IYFC), Blue CC Dranix (BCCD), Indanthren Blue CLF Collosiol (IB), Remazol Brilliant Blue BB (RB), and Levafix Brilliant Blue E-B (LBB) on agar plates. Full decolorisation was observed only for RB and LBB (dye concentrations <20 mg L-1). Similar to LBB dye, IB was also not decolorized at all dye concentrations above 20 mg L-1, but the original color of the dye was converted into yellow below 20 mg L-1 by all organisms used. None of the organism used in this study was able to fully decolorize IYFC dye, but conversion of original color of the dye into brown was observed for all dye concentrations. In addition, no decolorisation was observed for BCCD at all dye concentrations used. In terms of radial growth, in most cases, low dye concentrations (< 200 mg L-1) were well tolerated by the organisms used, except for some of them, showing either retardation or full inhibition in growth. © by PSP 2007

Some new records of inocyte (Fr.) Fr. from Turkey

Some new records of Inocybe (Fr.) Fr. based on samples collected from Osmaniye, Kilis, and Isparta provinces are presented. Inocybe flocculosa var. crocifolia (Herink) Kuyper, I. ochroalba Bruyl., I. pallida Velen., I. splendens var. splendens R. Heim, I. substellata Kühner, and I. vaccina Kühner were determined to be new records from Turkey. © TÜBİTAK

Determination of microfungi Flora of soil polluted by industrial wastewater in Aydi{dotless}n, İzmir and Manisa city [Aydi{dotless}n, İzmir ve Manisa i·llerinde endüstriyel ati{dotless}ksular ile kirlenmiş topraklari{dotless}n mikrofungus Florasi{dotless}ni{dotless}n belirlenmesi]

In this study, soil samples of 14 different localities polluted with industrial wastewaters around Aydi{dotless}n, İzmir and Manisa City were taken with seasonal intervals. The samples were brought to the laboratory and their microfungi were isolated and identified. The most frequently isolated genus from soil samples was found to be Aspergillus, followed by genus Penicillium. Among the isolated microfungi, Aspergillus niger is the most abundant species in soil. Microfungal concentrations of soil samples varied between 3,8 × 10 1 and 1,86 × 10 5 cfu/g. Depending on seasons, salinity of stations were measured between 0.004% and 0.56%, pH were between 6.36 and 9.81 and organic matter were between 0.13% and 29.15

Chemical composition of four wild edible mushroom species collected from southwest anatolia

Four different species of wild edible mushrooms (Armillaria mellea, Infundibulicybe geotropa, Meripilus giganteus and Sparassis crispa) representing four different families (Physalacriaceae, Tricholomataceae, Meripilaceae and Sparassidaceae) growing in southwest regions of Anatolia were analyzed for their Fe, Na, K, Zn, Cu, Cd and Pb contents and ash, dry matter, protein, and fat levels. All mineral concentrations were determined on a dry weight basis (d.w.). The mineral content of mushroom samples ranged from 54.00 to 112.33 µg/ g d.w. for Fe, 66.50 to 117.33 µg/ g d.w. for Na, 32.33 to 117.00 µg/ g d.w. for K, 47.40 to 87.40 µg/ g d.w. for Zn, 54.30 to 74.67 µg/ g d.w. for Cu and not detected for Cd and Pb. Na content was higher than other minerals in all mushroom species. This research proves that wild edible fungi can be used in wellbalanced diets due to their nutritive values. Also, their heavy metal contents (Pb, Cd) shows that collection areas are not polluted, therefore all collected mushroom species can be unreservedly consumed without any health risk