Table 1.
Effect of EBL and/or Spd on morphological parameters of radish seedlings under Cr-stress.
Figure 1.
Endogenous levels of Put (µg g−1 FW) and relative expression of RsADC in 7-d-old radish seedlings under Cr-stress without or with EBL and/or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b, c, d) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*” indicates significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Figure 2.
Endogenous levels of Spd (µg g−1 FW) and relative expression of RsSPDS in 7-d-old radish seedlings under Cr-stress without or with EBL and/or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b, c) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*” indicates significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Figure 3.
Endogenous levels of free and bound IAA (µg g−1 FW) in 7-d-old radish seedlings under Cr-stress without or with EBL and/or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b, c) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*”indicate significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Figure 4.
Endogenous levels of free and bound ABA (µg g−1 FW) in 7-d-old radish seedlings under Cr-stress without or with EBL and/or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*”indicates significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Table 2.
Effect of EBL and/or Spd on endogenous profiles of antioxidants in radish seedlings under Cr-stress.
Table 3.
Effect of EBL and/or Spd on protein content and specific activities of antioxidant enzymes in radish seedlings under Cr-stress.
Table 4.
Effect of EBL and/or Spd on endogenous levels of stress indicators in radish seedlings under Cr-stress.
Figure 5.
Localization of O2− with NBT staining (upper panel) and H2O2 with DAB staining (lower panel) in cotyledonary leaves of 7-d-old radish seedlings under Cr-stress without or with EBL and /or Spd.
Figure 6.
NADPH oxidase activity (O2−2 µmol min−1 mg prot.−1) in 7-d-old radish seedlings under Cr-stress without or with EBL and /or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b, c) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*”indicates significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Figure 7.
Ion leakage (dS m−1) of 7-d-old radish seedlings under Cr-stress without or with EBL and /or Spd.
Data are presented as mean ± SE. Different superscripted letters (a, b, c) indicate significant difference from each other in all combinations (Tukey's test, p<0.05). Asterisk “*”indicates significant difference for EBL+Spd vs. EBL under Cr-stress (Tukey's test, p<0.05).
Table 5.
Effects of EBL and Spd on PS II quantum yield (Fv/Fm), Cr-uptake and radical scavenging activities in radish seedlings under Cr-stress.