The changes of chlorophylls and main metabolites in three cultivars of Triticum
aestivum L. under the effects of osmotic and lead stresses, as well as their
interaction, were investigated. The results indicated that, the decreased Ψs and Pb concentration caused an increase in the chlorophyll content in
all plants. Conversely, the chl. a/b ratio was decreased.
Apparently, the total soluble proteins were increased in response to low Ψs and Pb, except in roots of cv. Giza168 which were increased under high
Pb concentrations. Statically, the Ψs had the predominant role on chlorophyll content,
chl. a/b ratio and total soluble proteins in all investigated plants.
The significant correlations between chlorophyll content and soluble proteins
were negative.
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