Figure 2.

Induction of OsY37 expression under nitrogen starvation conditions. Rice cv. “Akitakomachi” seeds were sown on soil and grown to the juvenile seedling stage. Whole seedlings were transferred to pots containing vermiculite with (+) or without (−) a nitrogen source. After the indicated number of days, RNA (100 μg) was extracted and Northern hybridization analysis was performed as described in Figure 1. Thick and thin arrows correspond to 1 and 3–4 kb transcripts, respectively.