Variation among isolates of Hypoxylon mammatum

  title={Variation among isolates of Hypoxylon mammatum},
  author={Gerald W. Anderson and Arthur L. Jr. Schipper},
The variability in a population of Hypoxylon mammatum isolates from the North Central United States was measured. Variables examined were the enzymic activity of β-fructofuranosidase and sucrose glucosyltransferase, carbohydrate and temperature requirements for growth, and growth patterns of the isolates in culture and in Populus tremuloides (quaking