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Turkish Journal of Fisheries and Aquatic Sciences 2014, Vol 14, Num, 2     (Pages: 497-505)

The First Marine Filamentous Fungi Discovered in the Bottom Sediments of the Oxic/Anoxic Interface and in the Bathyal Zone of the Black Sea

Nelli G. Sergeeva 1 ,Nadezhda I. Kopytina 2

1 National Academy of Sciences of Ukraine, Institute of Biology of Southern Seas, 2, Nakhimov ave., Sevastopol 99011, Ukraine
2 Odessa Branch of the Institute of Biology of the Southern Seas, Odessa, Ukraine
DOI : 10.4194/1303-2712-v14_2_21 Viewed : 1325 - Downloaded : 1048 This is the first information about the filamentous fungi of the deep soft sediments at the transition zone from oxic to anoxic conditions in the Bosporus outlet area of the Black Sea (117.4, 149.9, 252.4, 262.7 and 295.7m) and maximal depth (2250m) of the Black Sea. At direct microscopy of the deep-water bottom sediments the filamentous mycobiota, belonging to Division. Ascomycota were found. The results indicate to the presence of so far unknown species of mycobiota in the bottom sediments of the oxic/anoxic interface and maximal depths of the Black Sea. The morphologic difference of mycelium indicates to species diversity of fungi in the extreme benthic conditions. Large accumulations of mycelium in the bottom sediments in Black sea deep-water zone is the evidence of fungi habitation in the hydrogen sulfide zone. By the present time this information is based on the individual studies and brings more questions than answers. However, the mycelium was found at several stations near Bosporus region of the Black Sea, which proves the regularities of the phenomenon. Further studies of this region’s bottom sediments are needed to yield more information about the fungi of the soft sediments in the transitional oxic/anoxic water masses and deep water of the Black Sea. Keywords : Filamentous fungi, hydrogen sulfide zone, deep-sea sediments, Black Sea