Methyl Jasmonate Triggers Cadmium Detoxification in Tomato Plants via Depressing Cd²⁺ Influx, Altering the Subcellular Distribution, and Chemical Forms of Cadmium.

It is possible that the MeJA concentration we used is appropriate for the stressed plants and could alleviate Cd stress in tomato plants, but not suitable for Cd-free plants, thus inducing deterioration of plant growth and higher level of MDA in Cd-free plants (Fig. The lowest Cd influx velocity was recorded (- 2.79 pmol cm SP -2 sp s SP -1 sp ) in Cd + MeJA2.5 treated plant followed by Cd + MeJA0.25 (- 5.56 pmol cm SP -2 sp s SP -1 sp ) and Cd + MeJA5 (- 6.49 pmol cm SP -2 sp s SP -1 sp ) treated plants, respectively. Different letters indicate the significance of difference at p < 0.05 Effects of MeJA on Cd Content of Tomato Plants Among all treatments, the Cd-treated plants exhibited the highest Cd content (Fig. Cd + MeJA0.25, Cd + MeJA2.5, and Cd + MeJA5 treatments increased the endogenous MeJA level in tomato roots by 16.10%, 19.61%, and 57.20% as compared with Cd-stressed plants. [Extracted from the article]

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