Figure 7.

A, Northern analysis of nr-G3PDH mRNA from total RNA (10 μg per lane) extracted from young leaves (Y), immature leaves (IM), mature leaves (M), and senescent yellowish leaves (S) of celery plants. B, Northern analysis of nr-G3PDH mRNA from total RNA (10 μg per lane) extracted from mature leaves of celery plants treated with 0, 50, 100, 150, and 300 mm NaCl. The blots were probed with a 900-bp PCR fragment of celery nr-P3PDH as described in “Materials and Methods.” The loading of each lane was verified by reprobing the blot with an 18S rRNA probe from Arabidopsis.