Fungal mycelia grown in potato dextrose broth (PDB) for more than one week were taken and fungal genomic DNA was extracted using the HiPurA fungal DNA isolation kit (Himedia) following manufacturer's instruction. Fungal rDNA-ITS region was amplified from the extracted genomic DNA by using fungal domain specific primer ITS1F and ITS4R [18]. PCR was performed in a GeneAmp 9700 Thermal Cycler (Applied Biosystems, USA) under the following conditions, initial denaturation step at 94 °C for 5 min, followed by 30 cycles of 94 °C for 1 min, 52 °C for 30 s, and 72 °C for 1 min, with a final extension step of 72 °C for 10 min.