Fig. 1
From: CC-type glutaredoxins mediate plant response and signaling under nitrate starvation in Arabidopsis
Expression levels of ROXY genes under nitrate-sufficient and nitrate-deficient conditions. a ROXY6,8,9,19–21 are upregulated under nitrate-deficient conditions (-N). b ROXY7,10–18 are downregulated under nitrate-deficient conditions. Seven-day-old seedlings grown under full nutrient conditions were treated with either 4 mM nitrate (+N) or no nitrate (-N) for 3 d. Expression levels of ROXY genes in the wild type Col-0 under no nitrate relative to those in the wild type seedlings under full nutrient conditions (set to the value of 1) are shown. The expression data were obtained by qRT-PCR. An ACTIN7 was used as a reference gene. Different letters above the bars indicate values that are significantly different (n = 3 biological replicates, P < 0.05; t test)