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Papers by Rabiaa KOUADRIA

Research paper thumbnail of Nutritional quality of Citrus clementina leaves affects infestation distribution of Phyllocnistis citrella Stainton (Lepidoptera; Gracillariidae)

This study aimed to highlight the Citrus clementina nutritional quality leaves significance on in... more This study aimed to highlight the Citrus clementina nutritional quality leaves significance on infestations distribution of the citrus leaf-miner Phyllocnistis citrella Stainton (Lepidoptera; Gracillariidae). For each plant phenological cycle, infestation rates of P. citrella, carbon, nitrogen and phenolic compounds (CPT) were determined from collected leaves. The findings of P. citrella infestations show saved spring shoots, severely attacked autumn and summer leaves, and progressive infestations on additional leaves. Also, results revealed lower content of carbon in spring leaves as compared to additional, summer and autumn ones. In contrary, nitrogen was found to be higher in spring leaves. Summer and spring leaves contain, relatively, significant levels of total phenolic compounds. C/N balances seem to be substantial in summer, followed by additional and then spring and autumn leaves. Separately, infestations are negatively correlated with C and N accumulations, and positively w...

Research paper thumbnail of Induction of Growth and Osmoregulation in Salt Stressed Barley by the Endophytic Fungus Chaetomium coarctatum

Tunisian Journal of Plant Protection, 2020

Kouadria, R., Bouzouina, M., and Lotmani, B. 2020. Induction of growth and osmoregulation in salt... more Kouadria, R., Bouzouina, M., and Lotmani, B. 2020. Induction of growth and osmoregulation in salt stressed barley by the endophytic fungus Chaetomium coarctatum. Tunisian Journal of Plant Protection 15 (1): 19-27.

Research paper thumbnail of Fungal endophytes alleviate salt stress in wheat in terms of growth, ion homeostasis and osmoregulation

Journal of Applied Microbiology, 2020

Sustainable coatings for pre-coated metal can come in many guises, for instance the raw materials... more Sustainable coatings for pre-coated metal can come in many guises, for instance the raw materials themselves can be derived from sustainable sources such as biomass. In addition they can be smart, which means having some degree of functionality; for instance, they can help improve the thermal comfort within a building by reflecting or absorbing solar radiation depending upon global location and whether the interior needs to remain cool or achieve a particular level of warmth. Furthermore, the aesthetics of a building can be improved by resisting dirt. All of these smart effects combined with more sustainable sourcing can be used to obtain BREEAM or LEED points.

Research paper thumbnail of Effect of Ga 3 , Aba and Kinetin on the Response of the Halophyte Atriplex Halimus to Salinity During Germination

Atriplex halimus is a xerohalophytic perennial shrub native to the Mediterranean and has potentia... more Atriplex halimus is a xerohalophytic perennial shrub native to the Mediterranean and has potential for use in ecological restoration programmes. In this study we investigate in order (i) the effects of increasing concentrations of NaCl (100, 200, 300, 400, 500 and 600mM) on germination of Atriplex halimus, (ii) the impact of phytohormones on the biochemical traits of germination, under 300 mM of NaCl. The increase in salinity resulted in the decrease of germination, water uptake and osmotic potential especially at high concentration. Germination in the ABA-treated group, was markedly decreased either in presence or absence of NaCl. However, both GA3 and kinetin were very effective in alleviating salt adverse effects. This was reflected in the increased content of soluble sugars, whereas ABA-treated seeds showed a contradictory effect under salinity. Consequently, a remarkable decrease in alpha amylase activity was observed under ABA and NaCl treatments, while no substantial changes ...

Research paper thumbnail of Nutritional quality of Citrus clementina leaves affects infestation distribution of Phyllocnistis citrella Stainton (Lepidoptera; Gracillariidae)

This study aimed to highlight the Citrus clementina nutritional quality leaves significance on in... more This study aimed to highlight the Citrus clementina nutritional quality leaves significance on infestations distribution of the citrus leaf-miner Phyllocnistis citrella Stainton (Lepidoptera; Gracillariidae). For each plant phenological cycle, infestation rates of P. citrella, carbon, nitrogen and phenolic compounds (CPT) were determined from collected leaves. The findings of P. citrella infestations show saved spring shoots, severely attacked autumn and summer leaves, and progressive infestations on additional leaves. Also, results revealed lower content of carbon in spring leaves as compared to additional, summer and autumn ones. In contrary, nitrogen was found to be higher in spring leaves. Summer and spring leaves contain, relatively, significant levels of total phenolic compounds. C/N balances seem to be substantial in summer, followed by additional and then spring and autumn leaves. Separately, infestations are negatively correlated with C and N accumulations, and positively w...

Research paper thumbnail of Induction of Growth and Osmoregulation in Salt Stressed Barley by the Endophytic Fungus Chaetomium coarctatum

Tunisian Journal of Plant Protection, 2020

Kouadria, R., Bouzouina, M., and Lotmani, B. 2020. Induction of growth and osmoregulation in salt... more Kouadria, R., Bouzouina, M., and Lotmani, B. 2020. Induction of growth and osmoregulation in salt stressed barley by the endophytic fungus Chaetomium coarctatum. Tunisian Journal of Plant Protection 15 (1): 19-27.

Research paper thumbnail of Fungal endophytes alleviate salt stress in wheat in terms of growth, ion homeostasis and osmoregulation

Journal of Applied Microbiology, 2020

Sustainable coatings for pre-coated metal can come in many guises, for instance the raw materials... more Sustainable coatings for pre-coated metal can come in many guises, for instance the raw materials themselves can be derived from sustainable sources such as biomass. In addition they can be smart, which means having some degree of functionality; for instance, they can help improve the thermal comfort within a building by reflecting or absorbing solar radiation depending upon global location and whether the interior needs to remain cool or achieve a particular level of warmth. Furthermore, the aesthetics of a building can be improved by resisting dirt. All of these smart effects combined with more sustainable sourcing can be used to obtain BREEAM or LEED points.

Research paper thumbnail of Effect of Ga 3 , Aba and Kinetin on the Response of the Halophyte Atriplex Halimus to Salinity During Germination

Atriplex halimus is a xerohalophytic perennial shrub native to the Mediterranean and has potentia... more Atriplex halimus is a xerohalophytic perennial shrub native to the Mediterranean and has potential for use in ecological restoration programmes. In this study we investigate in order (i) the effects of increasing concentrations of NaCl (100, 200, 300, 400, 500 and 600mM) on germination of Atriplex halimus, (ii) the impact of phytohormones on the biochemical traits of germination, under 300 mM of NaCl. The increase in salinity resulted in the decrease of germination, water uptake and osmotic potential especially at high concentration. Germination in the ABA-treated group, was markedly decreased either in presence or absence of NaCl. However, both GA3 and kinetin were very effective in alleviating salt adverse effects. This was reflected in the increased content of soluble sugars, whereas ABA-treated seeds showed a contradictory effect under salinity. Consequently, a remarkable decrease in alpha amylase activity was observed under ABA and NaCl treatments, while no substantial changes ...