Abstract
The effect of enriching river water with ecologically probable amounts of nitrate and phosphate on the decay of pine and oak wood caused by aquatic and aero-aquatic hyphomycetes was investigated. Decay was of the typical soft-rot type with weight losses of pine wood consistently less than those of oak, but enrichment of the medium increased weight losses of pine more than oak. Nitrate utilization was found to be dependent on the availability of phosphate.
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