Figure 6.
Complementation assay of the serk4-1 mutant with the SERK4 gene; (A) the leaf senescence phenotype of the five-week old wild-type, serk4-1 mutant and two rescue-line plants; (B) the expression level of the SERK4 gene in the wild type, serk4-1 mutant and two rescue lines, the ratios of SERK4 gene expression level were calculated relative to the wild type; (C) the chlorophyll contents of the wild type, serk4-1 mutant and two rescue lines. WT, wildtype; RE, rescue line. In B and C, the data are means ± SD of three biological repeats. * p < 0.05, ** p < 0.01, *** p < 0.001 (t-tests).