Stimulating Effect of Pentoses on the Utilization of Galactose in Ophiostoma multiannulatum

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Abstract
The influence of some pentoses on the ability of the fungus Ophiostoma multiannulatum to grow on d-galactose was investigated. There is no measurable growth of the wild type Ophiostoma when galactose is the sole carhon source, d-xylose has a stimulating effect on the utilization of galactose in this fungus. Even when d-xylose is added in low concentrations as compared to the concentration of galactose in the mixtures the growth-promoting effect is high. The xylose can be added in amounts which are directly growth-limiting. The addition of l-arabinose also results in growth on gatactose if the concentration ratio arabinose: galactose is selected high enough. The results are discussed and compared to previously published data on stimulating effects from other hexoses on the utitization of galactose in this fungus.