Fig. 4
Mean LT50 and LT100 values
of each Cochlearia and Ionopsidium species before (orange)
and after (blue) cold acclimation. LT values were estimated by
fitting a logistic function to measured PEL values (see examples in Fig.
3). Error-bars indicate the standard deviation. For I.
glastifolium and I. megalospermum no standard deviation could be
derived as sample size is n = 1 each.