Additionally,a study was applied on analyses of bacteria classification relationship by PCR-DGGE, a method combining PCR and denture gradient gel electrophoresis.

• 粗提的土壤DNA经进一步提纯后均可用于PCR反应，利用细菌16S rRNA基因 和抗菌肽Shiva-1基因的引物都得到了相应的目的产物。