Fig. 3 | Scientific Reports

Fig. 3

From: Exogenously applied putrescine and chitosan–putrescine nanocomposite alleviate the negative effects of chilling stress on iceberg lettuce seedlings

Fig. 3The alternative text for this image may have been generated using AI.

Native PAGE analysis of SOD forms in iceberg lettuce plants treated with different concentrations of putrescine and the chitosan–putrescine nanocomposite: Put 1 mM–1 mM putrescine; Ch–Put 1 mM–1 mM chitosan–putrescine nanocomposite; Put 2.5 mM–2.5 mM putrescine; Ch–Put 2.5 mM–2.5 mM chitosan–putrescine nanocomposite; deionized water served as a control—Control; temperatures 4 °C and 20 °C. Only the upper and lower parts of the gel, which did not show any bands, were cropped. The original gels are shown in the supplementary figure (Figure S1).

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