Abdelatti Ibrahim Nowwar

Scopus Publications

Eco-Friendly Biostimulant Role of Moringa oleifera in Enhancing Photosynthetic Pigments, Osmotic Balance, and Yield Quality of Faba Bean under Salinity Stress
Ahmed M. Eleish, Mahmoud S. Osman, Abdelatti I. Nowwar
Egyptian Journal of Botany, 2026
Radiation-assisted tailoring of swelling behavior and water retention of Na-CMC/PAAm hydrogels for enhancing Beta Vulgaris under drought stress
Mahmoud A. El-diehy, Ibrahim I. Farghal, Mohamed A. Amin, Mohamed Mohamady Ghobashy, Abdelatti I. Nowwar, H. M. Gayed
Scientific Reports, 2025
This study investigates the negative impact of climate change on water resources, specifically water for agricultural irrigation. It describes how to optimize swelling, gel properties and long-term water retention capacities of Na-CMC/PAAm hydrogels for managing drought stress of Sugar beet plants through techniques such as changing the composition, synthetic conditions and chemical modification. Gamma radiation-induced free radical copolymerization was used to synthesize superabsorbent hydrogels using sodium carboxymethyl cellulose (Na-CMC) and acrylamide (AAm). The study also explored how varying Na-CMC/AAm ratio and radiation dose influence their swelling behaviour, gel fraction, and water retention. FTIR showed that CMC and PAAm components are part of the hydrogel structure. The equilibrium swelling reached a maximum value of ~ 500 g/g at a Na-CMC/AAm ratio of 60/40. High content of AAm reduced swelling because it caused increased hydrophobicity while high radiation doses up to 50 kGy increased crosslinking resulting in improved but limited swelling from 65 to 85 (g/g). After the second cycle, KOH modification reached maximum swelling capacity by introducing anionic carboxylate groups up to 415 (g/g). SEM images revealed uniform pores in an unmodified scaffold while larger cavities were formed upon modification facilitating Water absorption. Surprisingly, the improved hydrogels retained more water: about 75% even after 16 days as opposed to a 50% drop within five days in the case of unmodified ones. This hydrogel significantly enhanced shoot length by 18%, root length by 32%, fresh weight shoot by 15%, and dry weight shoot by 15% under severe drought conditions. As a result, yield increased by 22%, proteins went up by 19%, and carbohydrates rose by 13%. Leaf chlorophyll content increased with a corresponding decline in stress enzymes indicating decreased oxidative damage. This eco-friendly Na-CMC/PAAm-based hydrogel seems to have potential use for addressing water scarcity and agricultural challenges.
Insights into the interactions between Deverra tortuosa and Schizomyia buboniae: phytochemicals, antioxidant capacity, and enzyme inhibitory effects
Nashaat N. Mahmoud, Abdulaziz R. Alqahtani, Noura J. Alotaibi, Muhammad I. Haggag, Abdelatti I. Nowwar, Sanad H. Ragab
Peerj, 2025
Schizomyia buboniae (Diptera: Cecidomyiidae) induces berry-like galls on the stems of Deverra tortuosa (Desf.) DC. It is also known as “Shabat El-Gabal” and is one of the most important aromatic medicinal plants in Egypt. Many researchers have reported the relationship between galling insects and plant secondary metabolites, but this relationship is not quantitative. This study investigated the impact of S. buboniae -induced galls on physiological traits, phytochemical profiles, antioxidant capacity, and antinutrient levels in D. tortuosa stems. Our results reported that photosynthetic pigment levels, including chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids significantly decreased in galled stems by 63%, 14%, 44%, and 53%, respectively ( p < 0.05). Antioxidant enzyme activities such as polyphenol oxidase (PPO), peroxidase (POX), catalase (CAT) and superoxide dismutase (SOD) significantly increased in galled stems by 173%, 88%, 125% and 25%, respectively, indicating elevated oxidative stress response. The analysis of phytochemical compositions revealed that the galled stems of D. tortuosa contained significantly higher levels of total flavonoids, flavonols, saponins, steroids, tannins, alkaloids, cardiac glycosides, and total phenolic compounds compared to non-galled stems, suggesting enhanced production of secondary metabolites. Additionally, galled stems exhibited higher levels of phytates, oxalates, and cyanogenic glycosides than non-galled stems. Proximate contents, including lipids, carbohydrates and proteins, were also elevated in galled stems. Furthermore, galled stems exhibited significantly ( p < 0.05) stronger antioxidant activity than non-galled stems. S. buboniae appears to modify the phenotype of D. tortuosa , inducing tissue differentiation and activating defense-related responses. These results reveal that gall composition alters key physiological and biochemical traits in D. tortuosa , possibly as a defense response or as a result of insect interference. The study provides novel insights into the complex plant-insect interaction and highlights the potential implications for the plant medicinal value and suggests that gall-induced tissues of D. tortuosa may be valuable sources of bioactive compounds for pharmaceutical applications.
β-sitosterol and glycine betaine: a powerful duo for enhancing Lupinus drought resistance
Mahmoud Marzouq, Ibrahim Farghal, Mohamed Ismail, Ali badawy, Abdelatti Ibrahim Nowwar
Egyptian Journal of Botany, 2025
Drought stress represents a considerable risk to global agricultural yield, requiring novel strategies to alleviate its detrimental effects on agriculture. This research examines the impact of β-sitosterol and glycine betaine on the resilience of Lupinus terms (lupine) plants under drought circumstances by enhancing antioxidative defense mechanisms, increasing secondary metabolite synthesis, and facilitating osmolyte accumulation. Under drought stress, Lupinus plants showed reduced growth and elevated oxidative stress indicators malondialdehyde and H2O2. The combination of β-sitosterol and glycine betaine significantly enhanced plant development, demonstrated by improved photosynthesis and biomass of roots and shoots, with reduced oxidative stress. This improvement was ascribed to increased antioxidative enzymes, like catalase, superoxide dismutase, peroxidase, glutathione reductase, and ascorbate peroxidase, which jointly decreased reactive oxygen species levels and averted oxidative damage. Moreover, β-sitosterol and glycine betaine markedly increased the synthesis of osmolytes and secondary metabolites, allowing lupine plants to maintain cellular turgor and osmotic equilibrium under drought conditions, hence enhancing stress tolerance. In summary, our results provide significant insights into sustainable methods for improving crop resistance to drought, with potential agricultural applications to mitigate the detrimental impacts of climate change on crops.
Early Disease Prediction and Prevention Strategies
Abdelatti I. Nowwar, Samah H. Abu-Hussien, Salem S. Salem
Advances in AI for Plant Protection, 2025
Plant diseases impair most agricultural production, resulting in financial losses. Therefore, it is essential to assess plant diseases early on in order to improve agricultural productivity through the use of efficient control measures. Hence, in order to lessen the extremely tedious activities, automatic plant disease detection models are needed. To ensure that investigate the effectiveness of the current examples for detecting illnesses in a variety of crops, this survey guarantees a thorough understanding of all scientific activities pertaining to early plant disease detection. An overview of plant diseases, traditional plant disease detection techniques, the dataset employed, performance measures applied to the analysis of current detection frameworks, and implementation platforms are provided in this chapter. Lastly, this analysis highlights the gaps in the field of early plant disease prediction research as well as potential areas for future development and prevention strategies.
Coordination of antioxidants and plant hormones for higher plant performance under various stresses
Abdelatti I. Nowwar, Azamal Husen, Salem S. Salem
Role of Antioxidants in Mitigating Plant Stress, 2025
Green synthesis of selenium nanoparticles from Cassia javanica flowers extract and their medical and agricultural applications
Mohamed K.Y. Soliman, Mohamed Abdel-Aal Amin, Abdelatti Ibrahim Nowwar, Mahmoud H. Hendy, Salem S. Salem
Scientific Reports, 2024
Nanostructured materials are advantageous within numerous fields of medicine owing to their intriguing qualities, which include their size, reactive surface, bioactivity, potential for modification, and optical characteristics. Cassia javanica flower extract was used as a chelating agent in an environmentally friendly process to create SeNPs FTIR, XRD, and TEM, SAED were utilized to analyze and characterize the synthesized. The findings showed that the MIC of Se NPs against B. subtilis and S. aureus was 500 µg/ml. Conversely, the MIC for P. aeruginosa, E. coli, and C. albicans were 125, 250, and 62.5 µg/ml, respectively. Hence, SeNPs considerably reduced the activity; the inhibition peaked at 77.6% at 250 µg/ml to reach 49.04% at 7.8 µg/ml. Which showed the greatest suppression of MRSA biofilm formation without affecting bacterial growth. SeNPs showed an intriguing antioxidant capacity, achieving an IC50 of 53.34 µg/ml. This study looked how soaking seeds before sowing them with Se NPs at 50, 100, and 200 ppm affected the plants’ development in different parameters, as well as their yield of Vicia faba L. The growth conditions were effectively increased by soaking application of various quantities of Se NPs. The highest values of dry weight/pod (g), number of seeds/plant, weight of 100 seeds (g), and number of pods/plant were caused by high concentrations of Se NPs, by 28.43, 89.60, 18.20, and 94.11%, respectively.
Radiation synthesis of sodium alginate/gelatin based ultra-absorbent hydrogel for efficient water and nitrogen management in wheat under drought stress
Mahmoud A. El-diehy, Ibrahim I. Farghal, Mohamed A. Amin, Mohamed mohamady Ghobashy, Abdelatti I. Nowwar, H. M. Gayed
Scientific Reports, 2024
The main focus of this study was on using radiation to make an ultra-absorbent hydrogel (UAH) from sodium alginate (SA) and gelatin (GL) biopolymers. This UAH can effectively handle water and nitrogen in wheat farming during drought stress. The hydrogel was synthesized by gamma irradiation-induced SA/GL/polyacrylamide crosslinking at 10–40 kGy. Varying SA/GL ratios affected swelling and the gel fraction of SA/GL/PAm hydrogels. The (SA/GL 17/83) hydrogel exhibited a 40.03 g/g swelling degree, while increasing SA content resulted in higher swelling, peaking at 75.5 g/g for (SA/GL 83/17). This indicated a synergistic interaction between SA and GL. The gel fraction also increased from 76.8 to 90.3%, with a higher GL content reflecting increased crosslinking. After multiple hydrolysis cycles, the hydrogel achieved 1293 (g/g) swelling and 36 days of water retention. When applied to wheat (Triticuma estivum) under drought stress, it significantly improved shoot length (18%), root length (43%), shoot fresh weight (49%), and shoot dry weight (51%) under extreme drought. The significant increases in protein and carbohydrate content in both shoots (up to 32% and 19%, respectively) and grains (up to 21% and 24%, respectively), along with the reduction in proline content (up to 38%), demonstrate that ultra-absorbent hydrogel (UAH) effectively enhances nitrogen content, photosynthesis, and overall plant health in wheat under varying drought stress levels. This novel SA/GL-based UAH holds promise for addressing water scarcity and agricultural challenges, offering a sustainable solution for water and nitrogen management under drought stress.
Eco-friendly approach to decrease the harmful effects of untreated wastewater on growth, yield, biochemical constituents, and heavy metal contents of carrot (Daucus carota L.)
Abdulrahman Alhashimi, Ayman Abdelkareem, Mohamed A. Amin, Abdelatti I. Nowwar, Amr Fouda, Mohamed A. Ismail, Abeer E. Mustafa, Maha Alharbi, Amr Elkelish, Abdelrahman M. Sayed, Hanan A. Said
Environmental Science and Pollution Research, 2024
Here, the impact of irrigation using untreated wastewater (WW) on carrots (Daucus carota L.) was examined. We hypothesized that the addition of ethylenediaminetetraacetic acid (EDTA), dry algal powder (Spirulina platensis or Chlorella vulgaris), and Salix alba leaves powder would function as chelators for harmful contaminants in wastewater. The findings showed that irrigation of carrot plants with the sampled untreated wastewater led to significant decreases in the shoot lengths, fresh, dry weights of shoots and roots at stage I, the diameter of roots, pigment content, carotenoids, total soluble carbohydrate content, and soluble protein content. Furthermore, a significantly increased level of proline, total phenols, and the activities of polyphenol oxidase (PPO), peroxidase (POX), superoxide dismutase (SOD), and catalase (CAT) was identified in stage I samples. In contrast to the stage I, the length of the roots, the number of leaves on each plant, wet and dry weights of the stage II roots were all greatly enhanced. In spite of the increased yield due to the wastewater irrigation, carrot roots irrigated with wastewater had significantly more cadmium (Cd), nickel (Ni), cobalt (Co), and lead (Pb) than is considered safe. Our data clearly show that the application of Spirulina platensis, Chlorella vulgaris, EDTA, and leaves powder of salix was able to alleviate the toxicity of wastewater on carrot plants. For example, we recorded a significant decrease in the accumulation of carrot's Cd, Ni, Co, and Pb contents. We conclude that the treatments with Spirulina platensis and Chlorella vulgaris can be utilized as eco-friendly tools to lessen the damaging effects of wastewater irrigation on carrot plants.
A novel approach for reducing water stress on sunflower plants by using medicinal plant extracts rather than artificial growth regulators
Mohamed A. AL ABBOUD, Mohamed A. AMIN, Khatib S. ISMAIL, Syed K. ALI, M. REMESH, Abdelatti I. NOWWAR
Notulae Botanicae Horti Agrobotanici Cluj Napoca, 2024
One of the most significant physiological stressors that negatively impact plants in numerous vital areas of their growth and metabolism is water stress. This study estimates the effects of natural bio-stimulants (Origanum majorana, Nigella sativa and Curcurma longa) extracts for the first time, on water stress of sunflower plant in comparison with synthetic growth regulators (glycein betaine, proline, indole acetic acid, benzyl adenine and ascorbic acid). Water stress appeared to decrease of lengths, fresh and dry weights of shoot and root. Also caused a significant drop in chlorophylls and carotenoids. Foliar application of these synthetic and natural growth regulators significantly decreased the negative effects of drought stress on all studied morphological parameters and pigment contents of sunflower. HPLC analysis of bio-stimulants appeared six phenolic acids, one phenol and two flavonoids were found in all natural extracts. Gallic, rosmarinic, caffeic, syringic acids and kaempferol are the major phenolic compounds (more than 1000 µg/g) detected in Origanum majorana. While gallic acid, hesperetin and ferulic acid are the major phenolic compounds (more than 1000 µg/g) present in Curcurma longa. Chlorogenic acid, gallic acid, catechin, pyro catechol, coffeic acid and rutin are the dominant phenolic compounds present in Nigella sativa. The Nigella sativa treatment showed the highest decrease in proline levels. This may be due to the high concentration of caffeic acid (2406.97 g/g). The Origanum majorana treatment had the highest levels of chl. a and carotenoid contents, which rose by about 32% and 72%, respectively, compared to the stress-treated plant. The highly decrease in catalase activity, which is considered as most important indicator to water stress, appeared in Origanum majorana treatment. We suggest the use of these natural extracts as an alternative way, which appeared a significant increase in growth and biochemical near to synthetic regulators in the treatment of water stress due to the fact that these extracts contain many important phenolic compounds that have a role in the treatment of water stress.
Vicia faba overcomes drought stress by spraying with Xerophytic Anabasis setifera extract
Mohamed A. Amin, Ismail M. A. M. Shahhat, Mohamed A. Ismail, Abdelatti I. Nowwar, Salma Yousif Sidahmed Elsheikh, Hend A. El-khawaga, Abdelrahman T. Abdelwahab, Marwa A. Abdelfattah, Sally A. Elsherbeny, Ahmad. M. Abdel-Mageed, Mohamed A. Abdein, Ismail M.A. Bedawy
Edelweiss Applied Science and Technology, 2024
Radiation cross-linked ultra-absorbent hydrogel to rationalize irrigation water and fertilizer for maize planting in drought conditions
Mohamed Mohamady Ghobashy, Mohamed A. Amin, Mohamed A. Ismail, Abdelatti I. Nowwar, Mahmoud A. El-diehy, H.M. Gayed
International Journal of Biological Macromolecules, 2023
Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation
Abdelatti I. Nowwar, Ibrahim I. Farghal, Mohamed A. Ismail, Mohamed A. Amin
Journal of Soil Science and Plant Nutrition, 2023
Biochemical Changes on Jute Mallow Plant Irrigated with Wastewater and Its Remediation
Abdelatti Nowwar, Ibrahim Farghal, Mohamed Ismail, Mohamed Amin
Egyptian Journal of Chemistry, 2022

Abdelatti Ibrahim Nowwar

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Scopus Publications