Figure 3.
Nitrate uptake by different chl1 mutants. Alleles of chl1 are shown on the x axis. Growth and assay conditions were the same as those described for Fig. 2. Mutants are described in Materials and Methods. “Rev” refers to a revertant of ctg6. G5 refers to the nia2 NR deletion mutant chl3–5 (30).