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. 2019 Sep 7;70(21):6113–6125. doi: 10.1093/jxb/erz402

Fig. 4.

Fig. 4.

The mutation of GAAP1/GAAP3 and MAPR3 enhanced the sensitivity of plants to ER stress. (A–C) The seed germination was assayed under ER stress. Growth of Columbia (Col), mapr3-2, gaap1mapr3, and gaap3mapr3 seedlings on 1/2 MS medium supplied with different TM concentrations (0, 0.08, and 0.15 μg ml−1) for 6 d (A). Percentage of germinated plants (B) and percentage of seedlings with fully extended cotyledons grown on 1/2 MS medium with different TM concentrations for 6 d (C). Data are expressed as means ±SE. Significant differences compared with Col plants at the same concentration of TM are indicated by asterisks (χ 2 test; *P<0.05, **P<0.01, n=160). (D–F) Growth of Col, mapr3-2, gaap1mapr3, and gaap3mapr3, treated with 0 and 1.0 μg ml−1 TM for 6 h, and then transferred to the medium without TM for another 5 d (D); fresh and dry weight per plant were measured (E and F). Data are expressed as the mean ±SE. Significant differences compared with Col plants at the same concentration of TM are indicated by asterisks (t-test, *P<0.05, *P<0.01, n=6).