Fig. 1

Comparison of the low-temperature sensitivity of Nl and Nr responses. A. Growth forms of Nl and Nr in climate chambers (bar = 5 cm). B. Phenotypic changes in Nl and Nr after cold stress (bar = 5 cm). C. Changes in the relative conductivity and MDA content of Nl and Nr under the cold stress. All data are presented as the mean ± SE from three independent experimental replicates. Asterisks indicate significance determined by t test: ** for p < 0.01 and *** for p < 0.001. Data are shown as the mean of three independent experiments