Folia Microbiologica

, Volume 49, Issue 2, pp 112–116 | Cite as

Improving the yield and quality of DNA isolated from white-rot fungi

  • R. C. Kuhad
  • R. K. Kapoor
  • R. Lal


A new simple method used to eliminate polysaccharides that cause problems during DNA isolation was established for 6 different white-rot fungi using 1 % hexadecyltrimethylammonium bromide (CTAB) as wash buffer and followed by centrifugation. Variation in the DNA yield and quality was ascertained using precipitating agents, detergents and cell-wall-hydrolyzing chitinase. Considerable amount of exopolysaccharides from fungal biomass was removed with the use of 1 % CTAB wash buffer followed by centrifugation. The DNA varied in terms of yield and quality. For the DNA extraction use of 2 % SDS in extraction buffer worked best forPycnoporus cinnabarinus, Cyathus bulleri, Cyathus striatus andCyathus stercoreus, while 2 % CTAB worked best forPhanerochaete chrysosporium andPleurotus ostreatus. Elimination of phenol and use of absolute ethanol for precipitating DNA resulted in good yield and quality of DNA. This DNA was amenable to restriction endonuclease digestion.


CTAB Molar Mass Chitinase Extraction Buffer Fungal Biomass 
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© Institute of Microbiology, Academy of Sciences of the Czech Republic 2004

Authors and Affiliations

  1. 1.Department of MicrobiologyUniversity of Delhi South CampusNew DelhiIndia
  2. 2.Molecular Biology Laboratory, Department of ZoologyUniversity of DelhiDelhiIndia

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