Effects of NaCl on photosynthetic pigments, saccharides, and chloroplast ultrastructure in leaves of tomato cultivars
1998
Khavari-Nejad, R.A. | Mostofi, Y. (University for Teachers Education, Tehran (Iran). Dept. of Biology)
In leaves of four tomato (Lycopersicon esculentum) cultivars the contents of chlorophyll (Chl) (a+b), Chl a, and beta-carotene decreased due to 100 mM NaCI treatment as compared with those of controls. The contents of soluble sugars and total saccharides were significantly increased in leaves of NaCI-treated plants, but the starch content was not significantly affected. Transmission electron microscopy indicated that in leaves of NaCl-treated plants, the chloroplasts were aggregated, the cell membranes were distorted and wrinkled, and there was no sign of grana and thylakoid structures in chloroplasts.
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