Figure 3
Effects of exogenous putrescine (Put) on the ultrastructure of photosynthetic apparatus in leaves of cucumber plants grown in nutrient solutions with or without NaCl.
The third leaves (numbered basipetally) were sampled for ultramicroscopic observation on day 7 after the final concentration salt treatment (75 mM NaCl). SL, stroma lamella; GL, grana lamellae; SG, starch grain; P, plastoglobule. Scale bars for the photosynthetic apparatus are 500 nm. (a) Cont (image cited from Shu et al.8), 0 mM NaCl+0 mM Put; (b) Put, 0 mM NaCl+8 mM Put; (c) NaCl, 75 mM NaCl + 0 mM Put; (d) NaCl+Put, 75 mM NaCl + 8 mM Put.
