Date of Award
Master of Environmental Studies (MES)
Taoufik Saleh Ksiksi
Dr. Synan Abu-Qamar
Dr. Kareem A. Mosa
Salsola imbricata and Zygophyllum Mandeville are halophytic plants available widely in the UAE. These two species have important environmental services such as sand dune fixation, which will potentially improve plant cover and help tackle the problem of desertification. The species were selected due to their availability and role in the desert environment of the UAE. Plants are also constantly involved in interactions with a wide range of bacteria in the soil. These plant-associated bacteria colonize the rhizosphere (rhizobacteria), and the internal plant tissues (bacterial endophytes). Endophytic bacteria are those capable of colonizing live internal plant tissues which can be isolated from surface-disinfested plant material, and that does not visibly harm the host plant. In the present thesis, Salsola imbricata and Zygophyllum Mandeville were cultivated with or without the incorporation of plant growth promoting soil and endophytic bacteria that were obtained from Salsola imbricata and Zygophyllum Mandaville roots and soil. These plant growth-promoting bacteria were selected based on their abilities to produce plant growth regulators such as auxins, polyamines and in addition to their abilities to fix nitrogen and to solubilize phosphorus. The aim of the present work was to examine if these bacteria can promote Salsola imbricata and Zygophyllum Mandaville growth without using large quantities of water, and the plants’ carbon sequestration potentials. The plant species physiological growth pattern was closely monitored. The inoculation was effective in some growth parameters in both species after the application of treatment. Inoculated Salsola imbricata plants had larger root weight than control plants after four months of treatment, 0.50 g and 0.23 g respectively. Results from the current study state that inoculated soils had more activity than the control ones even after four months of inoculation, meaning that the inoculation was successful and effective.
However, significant changes in all physiological and morphological parameters were not observed. The parameters improved by inoculation include green shoot weight, root length, dry root and shoot weight, and chlorophyll content
Debouza, Nour ElHouda, "Soil-Plant Interface, Carbon Sequestration and the Eco physiological Growth of Salsola Imbricata and Zygophyllum Mandaville Using Locally Grown Rhizosphere and Endophytic Bacteria" (2018). Civil and Environmental Theses. 15.