MYCOCOENOSES OF MINING AFFECTED ENVIRONMENTS

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-17-9 / ISSN 1314-2704, June 19-25, 2014, Book 5, Vol. 1, 467-472 pp

ABSTRACT
The paper deals with identifying of mycocoenoses in two different environmental
systems such as river sediment and technogenic substrates. Both types of substrates are heavily affected by old mining activities resulting in high contents of various toxic elements, which exceed limit values, and in extreme pH values of strongly acidic (pH = 5.4) in the river sediment and of strongly alkaline (pH = 8.6) in the technogenic substrate. From 46 species of identified microscopic fungi, 24 species were identified in river sediment samples in comparison with technogenic substrates, in which only 9 and 6 species were identified. Dominant species of mycocoenosis include Penicillium and Aspergillus species. Mucoromycotina (Mortierella alpina and Rhizopus stolonifer var. stolonifer) are poorly represented because of a lack of organic nutrients. The distinct ecological factor affecting mycocoenosis in all studied substrates was high content of various chemical elements such as Al, As, Cu, Fe, Mg, Mn, Pb a Zn.

Keywords: old environmental burdens, river sediment, technogenic substrate, toxic
elements, microscopic fungi