Correlations among the contents of different soluble polyamines in the Thellungiella and Arabidopsis accessions and their freezing tolerance after cold acclimation. The lines were fitted to the data by linear regression analysis and the correlation coefficients and p-values are shown in the panels. Solid symbols denote data from Thellungiella, open symbols data from Arabidopsis.
Lee et al. BMC Plant Biology 2012 12:131 doi:10.1186/1471-2229-12-131