Figure 2.
ADH activity and allyl alcohol responses of le25:ADH Ben seedlings. A, Induction of ADH activity by low ψw. ADH activity was assayed 48 h after seedlings were transferred to a range of agar ψw. Data are means ± se (n = 5–7). B, Appearance of le25:adh and Ben adh null seedlings 7 d after a 2-h, 1.2 mm allyl alcohol treatment. Prior to the allyl alcohol treatment, 3-d-old seedlings were exposed to either control (−0.25 MPa) or low-water-potential stress (−1.2 MPa) for 2 d. After the allyl alcohol treatment, seedlings were transferred to control plates. Scale bars in pictures indicate 1 mm. The nylon mesh used to transfer seedlings between plates can be seen in the background.