Fig. 5.

Determination of tolerance to salt stress in Arabidopsis wild-type (WT) ecotypes and in transgenic lines overexpressing OsUGT90A1 (OX). (a–e) Time-course of seed germination of WT and two OsUGT90A1-OX homozygous transgenic lines on half-strength MS medium supplemented with 0, 50, 100, 150, or 200 mM NaCl. (f, g) Electrolyte leakage in 2-week-old (f) Landsberg erecta-0 (Ler-0) and (g) Columbia-0 (Col-0) Arabidopsis ecotypes in WT and OsUGT90A1-OX transgenic lines grown with 0 mM or 50 mM NaCl. Ind- and Jap- indicate that the indica or japonica allele of OsUGT90A1 was overexpressed, respectively. Data are means (±SD) of n=3 assays. Significant differences between the WT and transgenic plants were determined using two-tailed Student’s t-tests: *P<0.05; **P<0.01.