In this laboratory DNA extraction from mycelium ( Pestalotiopsis sp.) by a modified SDS method. By use Extraction buffer solution (200 mM Tris-HCl, pH 8.5; 25 mM EDTA, pH 8. and 250 mM NaCl and 0.5% SDS); cold phenol, chloroform . cold iso-propanol and cold 70% ethanol. RNase A, TE buffer
The Pestalotiopsis sp. is a fungal disease that is considered usually a minor disease. It attacks foliage that has been injured or weakened by unfavorable weather or growing conditions. Usually, the killed foliage is near the base of the plant and where foliage is relatively dense. The disease usually starts at the tip of the foliage and progresses towards the leaf base. The color of the foliage goes from green to yellowish, then to a dark brown that can look almost black. The disease may kill the smaller twigs where the infected needles died. And use the PCR (polymerase chain reaction) that is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce (amplify) selected sections of DNA or RNA. By a modified SDS method that SDS is a detergent used to disrupt the cell membrane.