TABLE 3.
Substrates from Biolog GN plates utilized differentially by the four treatments of experiment 1 and the treatments with Acanthamoeba and Cercomonas sp. morphotype 1 of experiment 2
| Substrate | Utilizationa
|
|||||
|---|---|---|---|---|---|---|
| Roots
|
Nutrient solution
|
|||||
| No protozoa | Mixed protozoa | No protozoa | Mixed protozoa | Acanthamoeba | Cercomonas sp. morphotype 1 | |
| Dextrin | + | + | + | + | − | + |
| α-Lactose | + | − | + | − | − | − |
| Hydroxy l-proline | + | + | + | − | + | + |
| l-Leucine | + | + | + | − | + | + |
| Uridine | + | − | + | − | + | − |
| Putrescine | + | + | + | − | + | + |
| Glycerol | + | + | + | − | + | − |
a
+, utilized; −, not utilized.