Possible Relationship Between Yeast Deoxyribonucleases and Deoxyribonucleic Acid Yield

AUTOR(ES)

El-Nakhal, Hamza

RESUMO

The deoxyribonucleic acid (DNA) yield and deoxyribonuclease (DNase) activity of several yeasts were correlated. Debaryomyces castellii and Debaryomyces franciscae were found to contain active DNases which carry out DNA hydrolysis, whereas the amounts of DNA as determined by extraction with Sarkosyl buffer (pH 7.8) were found to be small. On the other hand, Candida parapsilosis, Saccharomyces carmosousae, and Lodderomyces elongisporus produced no detectable DNases active at pH 7.8, and their DNA yield was correspondingly high. L. elongisporus was found to possess DNase only at pH 4.0.

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