Keberadaan Fungi Selulolitik pada Tanah Bekas Erupsi Gunung Sinabung di Kabupaten Karo

Abstract

The presence of selulolitic fungi in the former eruption land of Mount Sinabung eruption in Karo. Under guidance of DENI ELFIATI and DELVIAN. Volcanic ash expelled in the wake of eruption has a sour potential of hydrogen and the result led to a decrease in the diversity various and microorganism population. The Fungi are important instrument in the process of decomposition of organic material for all types of soil. The fungi selulolitic have the ability to hydrolyze the cellulose naturally through its cellulose activity. This research aims to study the presence of selulolitic fungi contained on land under forest stands are former eruption of Sinabung Mount in Karo and soil chemical properties that influence its existence. Soil sampling is done with diagonally composite. Soil samples exposed to the eruption consisted of two samples that volcanic ash with a depth of 0-5 cm and mixed with volcanic ash soil to a depth of 5-20 cm, while for the control of soil samples consisted of a sample of the soil to a depth of 0-20 cm. The isolated of fungi and identified in the laboratory of Soil Biology, Agroekotecnology, Faculty of Agriculture, University of North Sumatra. This research was carried out start from March 2015 until May 2015. The results showed that there were several types of selulolitic fungi found in soil samples affected by volcanic ash and are not affected by volcanic ash (control), namely Aspergillus sp., Penicillium sp., Rhizopus sp. and Trichoderma sp.