Fig. 2From: Integrative physiological and transcriptome analyses provide insights into the Cadmium (Cd) tolerance of a Cd accumulator: Erigeron canadensisCd content in roots and shoots of control and treated E. canadensis plants. The uppercase and lowercase letters indicate significantly different groups in roots and shoots, respectively (t test, p < 0.05). The symbols * and ** indicate that the two groups were significantly (t test, p < 0.05) and extremely significantly (t test, p < 0.01) different, respectivelyBack to article page