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Fig. 5 | BMC Plant Biology

Fig. 5

From: The roles of cell wall invertase inhibitor in regulating chilling tolerance in tomato

Fig. 5

Phenotypic responses of INVINH1 over-expression and wildtype under cold stress. a 45-d INVINH1 over-expression and wildtype plant were treated at 4 °C for 6 h. The INVINH1 over-expression plant wilted, while wildtype plant remained normal. b The first mature leaf from 60-d INVINH1 RNAi and wildtype plant, which were recovered at 25 °C for 72 h after treated at 4 °C for 24 h. The leaf at this position of INVINH1 over-expression plant turned white. By contrast, the leaf at the same position of wildtype remained green at this stage. c The proline content of the first mature leaf from INVINH1 over-expression and wildtype plant before and after treated at 4 °C for 24 h. d The POD activity of the first mature leaf from INVINH1 over-expression and wildtype plant before and after treated at 4 °C for 24 h. (POD activity: 1 U = OD·min−1·g−1FW). Each value in (c) and (d) is mean ± SE of at least ten biological replicates. Lowercase letters indicate values significantly different at P < 0.05

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