Asma Ghatea Oraibi

• Doctor of Philosophy
• Professor (Assistant) at Nahrain University

This research investigated the effects of bio-silver nanoparticles (AgNPs) on proline content, peroxidase, and catalase enzyme activity of two Iraqi wheat (Triticum aestivum L.) cultivars (Ibaa 99 and Al-Rasheed) compared with NPK fertilizers. The biosynthesis of AgNPs from A. graveolens aqueous extract, and their characterization occurred through...

Three experiments were conducted: the first was in which silver nanoparticles were biosynthesized from Aloe vera, and the other two experiments, one in the field during the 2018-2019 growing season in the botanical garden of the Department of Biology Department / College of Education for Pure Sciences - Ibn Al-Haytham / University of Baghdad, anoth...

Viciafaba (Faba bean) in the Middle East and North African countries considered as one of the most valuable legume crops. It is a nitrogen main source in the soil. The objective of this research was to estimate response to zinc ion elevation in nutrient media and Vicia faba showed that this plant has the potential phytoremediation ability of areas...

Amber 33 and Amber Baghdad rice seeds were presoaked in 1.5mM of Sodium azide (SA) for 4 hrs which is the optimum dose for mutagenesis with SA that caused 40% reduction in seedlings height. This dose gave the highest genetic variation and less sterility in both genotypes. Calli from both SA treated and non-treated genotypes were induced from mature...

Two culture systems were used to compare which system is better for producing drought ‎tolerant plants. Sodium Azide (SA) was used as a mutagen to induce genetic variation in two local ‎rice varieties, Amber33 and Amber Baghdad. In vitro screening at the cellular level was performed ‎using PEG (0, 0.5, 1, 1.5 and 2%) as stressing agent to create ch...

Phaseolus vulgaris seeds were surface sterilized using ethanol 90%, soaked in a sterile distilled water for 60min, then soaked in copper and silver nanoparticles at different concentrations (25, 50 and 100mg/ml) for 15 and 30min. The effect of nanoparticles on the plant physiological characteristics in vivo was detected. Callus was initiated from t...

Moringa oliefera seeds were treated with UV light type A, B and C for 30 minutes. Seedlings length, number of plants, number of axillary buds, number of adventitious buds and number of apical buds were recorded 34 days after sowing the treated seeds in addition to the control in vivo. Sterilized seeds were cultured in vitro on MS agar medium contai...

The objective of this research was to studying the antibacterial activity of Portulaca oleracea L. in vitro cultures. P. oleracea leaves were collected from the local markets. Callus tissues were induced from the plant leaves (expalnt) through inoculating the explants on MS medium supplemented with different concentrations of 2, 4-D (0.0, 2.0 or 3....

Water and ethanol extracts of Punica granatum peels were prepared at the concentration 0.5 and 1.0mg/10ml, silver nanoparticles (4000mg/l) prepared at the same concentrations (0.5 and 1.0mg/10ml). Bacterial samples used in the experiment consisted of two gram-negative bacteria (Escherichia coli and Pseudomonas erogenous) and two gram-positive bacte...

Amber 33 and Amber Baghdad rice seeds were presoaked in 1.5mM of Sodium azide (SA) for 4 hrs which is the optimum dose for mutagenesis with SA that caused 40% reduction in seedlings height. This dose gave the highest genetic variation and less sterility in both genotypes. Calli from both SA treated and non-treated genotypes were induced from mature...

Contamination is a big problem in in vitro cultures, especially in woody plants. In this paper, different sterilization material been used to compare their efficiency in sterilization with Nanoparticles. Silver and copper Nanoparticles had been widely used in many fields. Plants in vitro rarely get used with nanoparticles. Silver &Cupper nanopartic...

Phaseolus vulgaris seeds were irradiated with UV-A, UV-B and UV-C radiation, and then grown in incubator for 8 days at 25±°C. Hypocotyls of newly germinated embryos were cultured on an MS medium containing 0.5mg/l BA and 1.5mg/l 2,4-D. Callus pieces from both UV treated and non-treated explants were lyophilized then α-amylase inhibitors was extract...

The antimicrobial of silver and copper nanoparticles were recently focused on studied in the literature. In this article five experiments were done to see the effect of silver and copper nanoparticles alone or with Geranium leaf extract on two grams positive and two grams negative bacteria beside Candida albicansas fungi. The effect of both nanopar...

Simple Sequence Repeat (SSR) markers were used to investigate the variations between drought sensitive and drought tolerant genotypes. Patterns obtained using RM328 and RM302 detected polymorphism between T14, T15 and Amber33, Amber Baghdad genotypes and those obtained using RM316 and RM201 for the tested genotypes suggested that these primers may...

Seeds of two rice cultivars Amber 33 and Amber Baghdad were presoaked in the chemical mutagen Sodium azide at the concentrations 0.0, 0.5, 1.0 or 2.0 mM for 2, 4 or 6 hrs. The effect of Sodium Azid was examined on seed germination, shoot and root length and promising dose. To increase the genetic variation for drought tolerance, seeds treated with...