الفهرس 
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Abstract
In vitro regeneration of common bean (Phaseolus vulgaris L.) is
a requirement for genetic transformation, which involves induction and
development to the whole plant.
Several studies have shown that brassinosteroids attenuate the effects of
salt stress in plants. In order to assess the influence of exogenous application of
varying concentrations of NaCl and 24-epibrassinolide (24-Epi) each alone or
in combination into MS culture media in inducing salt tolerance in vitro P.
vulgaris L. plantlets different physiological, biochemical, hormonal and
molecular parameters were investigated. The decline in several components of
plant metabolism, induced by salt, was attenuated by 24-epibrassinolide
application indicating the importance of brassinosteroid synthesis for plants
growing under salinity and that 24-Epi improvement might have contributed to
the salt tolerance.