The effects of salinity on the morphogenesis of various organs of kidney bean (Phaseolus vulgaris L.) and eggplant (Solanum melongena L.) plants grown in nosterile culture and of explants from these organs grown in vitro were studied. Salt stress was produced by adding NaCl (0.5 and 1.0%) to water or the Murashige and Skoog nutrient medium. Salt stress suppressed rhizogenesis, particularly profoundly in the salt-sensitive beans. Callus cultures obtained from different organs differed in their salt tolerance, which was evaluated from the callus growth. Under salinity conditions, homologous structures of the two crops differed markedly in survival and regeneration. Different organs and corresponding explants of one and the same plant differed in the threshold sensitivity to salinity, which indicates the organ-specificity of salt resistance.
Russian Journal of Plant Physiology – Springer Journals
Published: Oct 13, 2004
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