THE ULTRASTRUCTURE OF BRASSICA JUNCEAE CHLOROPLAST AS A CRITERION OF SALT RESISTANCE
A. V. Usatov,1 G. M. Fedorenko,2 L. B. Sherbakova,1
E. V. Mashkina 1
1 Research Institute of Biology, 2 Rostov State University, Russia;
e-mail: genlab@bio.rsu.ru
Two salt resistant forms of the mustard Brassica junceae were obtained. These forms demonstrated no chlorophyll
defects. SRi and SRs salt resistant forms have constant parameters of productivity in condition of NaCl salting, in comparison with
the initial plants of sort Donskaya-5. Results of a comparative ultrastructural analysis of plastids show that the salt influences the
plastid ultrastructure of SR: and SRs lines of mustard in a lesser degree in comparison with the sort plants. The plastids of SR2 and
SRs salt resistant lines of mustard are functionally quite active under stress conditions.
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