Figure 6

Effect of exogenous putrescine (Put) on abundance of 10 thylakoid membrane proteins in leaves of cucumber plants grown in nutrient solutions with or without NaCl.
Each histogram represents a mean ± SE of three independent experiments. Different letters indicate significant differences between treatments (P < 0.05). The data were taken on the third leaves (numbered basipetally), after the final salt treatment (75 mM NaCl) for 7 days. Cont, 0 mM NaCl + 0 mM Put; Put, 0 mM NaCl+8 mM Put; NaCl, 75 mM NaCl + 0 mM Put; NaCl+Put, 75 mM NaCl + 8 mM Put. (a) photosystem II Qb protein; (b) photosystem II protein D1; (c) chlorophyll a/b-binding protein CP24 precursor; (d) photosystem II CP43 protein; (e) psbA protein; (f) LHCII type III CAB-13; (g) ATP synthase beta subunit; (h) photosystem II CP47 protein; (i) photosystem II protein D2; (j) ATP synthase CF1 alpha subunit.