الفهرس 
introductionOnly 14 pages are availabe for public view
 |  | from | 176 |  |  |
| | | from | 176 | | |
Abstract
In this study a pot experiment was carried out to investigate the effect of some growth regulators; mainly cytokinins at concentrations of 50 & 100 ppm and β-sitosterol at 10-3 & 10-5 and 10-7molar on ameliorating the effect of infection of mung bean plant with three diseased fungi (Fusarium moniliforme, Fusarium oxysporum or Rizoctonia solani) on plant growth and productivity. In the greenhouse experiment, the β-sitosterol at 10-5 molar followed by 100 ppm were the most effective treatments in reducing the incidence of wilt in mung bean plant infected with the three fungi The growth parameters of were significantly increased by the treatment with cytikinins at the concentration 100 ppm and β-sitosterol at the concentration 10-5 molar. Similarly, the photosynthetic pigments as well as the defense enzymes activity and the content of total phenols were significantly increased by the same treatments. Also, The yield parameters were significantly increased in mung bean plants non infected and infected with the used fungi treated with cytokinins at the concentration 100 ppm or β-sitosterol at the concentration 10-5 molar. In addition protein banding of mung bean yielded seeds showed that the used treatments; either fungi or growth regulators led to the expression of new bands and disappearance of another in comparing with the control yielded seeds. Moreover ultrastructure of leaves and roots of mung bean uninfected and infected with the used fungi cleared distinct differences in the cells, cytoplasm, vacuole, cell wall as well as and the examined organelles such as chloroplast, mitochondria, nucleus and nucleolus. This study recommended that these, plant growth regulators could be used, as safe compounds to improve the resistance of mung bean plant to fungal pathogens.