The potentiality of <i>Trichoderma harzianum</i> in alleviation the adverse effects of salinity in faba bean plants
2014
The interaction between sodium chloride and <i>Trichoderma harzianum</i> (T24) on growth parameters, ion contents, MDA content, proline, soluble proteins as well as SDS page protein profile were studied in <i>Vicia faba</i> Giza 429. A sharp reduction was found in fresh and dry mass of shoots and roots with increasing salinity. <i>Trichoderma</i> treatments promoted the growth criteria as compared with corresponding salinized plants. The water content and leaf area exhibited a marked decrease with increasing salinity. <i>Trichoderma</i> treatments induced a progressive increase in both parameters. Both proline and MDA contents were increased progressively as the salinity rose in the soil. <i>Trichoderma</i> treatments considerably retarded the accumulation of both parameters in shoots and roots. Both Na<sup>+</sup> and K<sup>+</sup> concentration increased in both organs by enhancing salinity levels. The treatment with <i>Trichoderma harzianum</i> enhanced the accumulation of both ions. Exposure of plants to different concentrations of salinity, or others treated with <i>Trichoderma harzianum</i> produced marked changes in their protein pattern. Three types of alterations were observed: the synthesis of certain proteins declined significantly, specific synthesis of certain other proteins were markedly observed and synthesis of a set specific protein was induced <i>de novo</i> in plant treated with <i>Trichoderma harzianum</i>.
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