Publications

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2023
Talaat, N. B., A. W. M. Mahmoud, and A. M. A. Hanafy, "Co‑application of salicylic acid and spermine alleviates salt stress toxicity in wheat: growth, nutrient acquisition, osmolytes accumulation, and antioxidant response", Acta Physiologiae Plantarum, vol. 45, issue 1, pp. 1-15, 2023.
Talaat, N. B., M. R. A. Nesiem, E. G. Gadalla, and S. F. Ali, "Gibberellic Acid and Salicylic Acid Dual Application Improves Date Palm Fruit Growth by Regulating the Nutrient Acquisition, Amino Acid Profle, and Phytohormone Performance", Journal of Soil Science and Plant Nutrition, 2023.
Talaat, N. B., A. A. Mostafa, and S. A. N. El‑Rahman, "A Novel Plant Growth–Promoting Agent Mitigates Salt Toxicity in Barley (Hordeum vulgare L.) by Activating Photosynthetic, Antioxidant Defense, and Methylglyoxal Detoxifcation Machineries", Journal of Soil Science and Plant Nutrition, vol. 23, issue 1, pp. 308–324, 2023.
Talaat, N. B., "Role of phytohormones in regulating abiotic stresses in wheat", Abiotic Stresses in Wheat: Unfolding the Challenges: Academic Press, 2023.
Talaat, N. B., and A. M. A. Hanafy, "Spermine-Salicylic Acid Interplay Restrains Salt Toxicity in Wheat (Triticum aestivum L.)", Plants, vol. 12, issue 2, pp. 352, 2023.
2022
2021
Talaat, N. B., "Co-application of Melatonin and Salicylic Acid Counteracts Salt Stress-Induced Damage in Wheat (Triticum aestivum L.) Photosynthetic Machinery", Journal of Soil Science and Plant Nutrition , vol. 21, pp. 2893–2906, 2021.
Shawky, B. T., N. B. Talaat, and S. Mohapatra, "Enzymes in Fuel Biotechnology", Bioprospecting of Enzymes in Industry, Healthcare and Sustainable Environment: Springer, 2021.
Shopova, E., Z. Katerova, L. Brankova, L. Dimitrova, I. Sergiev, D. Todorova, and N. B. Talaat, "Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application", Life, vol. 11, issue 11, pp. 1156, 2021.
Shopova, E., L. Brankova, Z. Katerova, L. Dimitrova, D. Todorova, and N. B. Talaat, "Salicylic Acid Pretreatment Modulates Wheat Responses to Glyphosate", Crops, vol. 1, issue 2, pp. 88-96, 2021.
2020
2019
Talaat, N. B., "Abiotic Stresses-Induced Physiological Alteration in Wheat", Wheat Production in Changing Environments.Responses, Adaptation and Tolerance: Springer, 2019.
Talaat, N. B., M. M. Rady, M. T. Abdelhamid, B. T. Shawky, and E. - S. M. Desoky, "Maize (Zea mays L.) grains extract mitigates the deleterious effects of salt stress on common bean (Phaseolus vulgaris L.) growth and physiology", The Journal of Horticultural Science and Biotechnology, vol. 94, issue 6, pp. 777–789, 2019.
Talaat, N. B., "Role of Reactive Oxygen Species Signaling in Plant Growth and Development", Reactive Oxygen, Nitrogen and Sulfur Species in Plants: Production, Metabolism, Signaling and Defense Mechanisms, Volume 1, First Edition.: John Wiley & Sons , 2019.
2018
Talaat, N. B., "Exploring Halotolerant Rhizomicrobes as a Pool of Potent Genes for Engineering Salt Stress Tolerance in Crops", Salinity Responses and Tolerance in Plants, Volume 2: Exploring RNAi, Genome Editing and Systems Biology, Cham, Springer International Publishing, 2018. Abstract

Soil salinization is a constant threat to crop productivity and ecology worldwide. The conventional approach, breeding salt-tolerant plant cultivars, has often failed to efficiently alleviate this devastating environmental stress factor. In contrast, the use of a diverse array of microorganisms harbored by plants has attracted increasing attention because of the remarkable beneficial effects of them on plants. Among these microorganisms, halophilic and halotolerant rhizomicrobes is one of the most important extremophilic microorganisms. They can be found in saline or hypersaline ecosystems and have developed different adaptations to survive in salty environments. Their proteins and encoding genes are magnificently engineered to function in a milieu containing 2–5 M salt and represent a valuable repository and resource for reconstruction and visualizing processes of habitat selection and adaptive evolution. Indeed, the natural occurrence of these microorganisms in saline soils opens up a possible important role of them in increasing the salt tolerance in crops. They are capable of eliciting physical, chemical, and molecular changes in plants which enhanced their tolerance and promoted their growth, and thus they can refine agricultural practices and production under saline conditions. Likewise, their ability to serve as bioinoculants could be a more ready utilizable and sustainable solution to ameliorate the deleterious salt effects on plants. However, the ecology of their interactions with plants is still under investigation and not fully understood. This chapter aims to introduce the halotolerant rhizomicrobes and shed light on their special mechanisms to adapt to salinity conditions. A special section would be dedicated for their potential to be exploited in engineering salt tolerance in crops.

2017
Talaat, N. B., and B. T. Shawky, "Microbe-Mediated Induced Abiotic Stress Tolerance Responses in Plants", Plant-Microbe Interactions in Agro-Ecological Perspectives, Singapore, Springer, 2017.
2016
Todorova, D., N. B. Talaat, Z. Katerova, V. Alexieva, and B. T. Shawky, 35. Polyamines and brassinosteroids in drought stress responses and tolerance in plants, : Wily Online Library , 2016. AbstractWebsite

This review highlights the recent advances concerning the role of polyamines and brassinosteroids in stress tolerance of plants with a special accent on drought. Alterations of the endogenous polyamine and brassinosteroid levels and their function in alleviation of drought stress are discussed. Possibilities for application of exogenous polyamines and brassinosteroids to lessen the stress injuries and to increase drought tolerance are also summarized. Genetic and molecular approaches for improving plant tolerance to drought via modification of polyamine levels and involvement of brassinosteroids in signal transduction pathways under stress are presented. Interaction of polyamines and brassinosteroids with phytohormones and osmolytes under drought stress is reviewed. We describe also the recent investigations in Bulgaria and Egypt concerning the modulation of plant reactions to drought stress by application of polyamines and brassinosteroids.

Talaat, N. B., and B. T. Shawky, "Dual Application of 24-Epibrassinolide and Spermine Confers Drought Stress Tolerance in Maize (Zea mays L.) by Modulating Polyamine and Protein Metabolism", Journal of Plant Growth Regulation, vol. 35, no. 2, pp. 518–533, 2016. AbstractWebsite

No information is available concerning the influence of dual application of 24-epibrassinolide (EBL) and spermine (Spm) on the nitrogen metabolism in plants subjected to drought conditions. As a first report, this investigation assesses the role of EBL, Spm, and their dual application on polyamine and protein pools in water-stressed plants. It explores the ameliorative effects of these foliar applications under water deficiency. Two maize hybrids (Giza 10 and Giza 129) were treated with or without EBL and/or Spm foliar applications under well-irrigated and drought-stressed conditions (75 and 50 {%} of field capacity). Dual application (25 mg l−1 Spm + 0.1 mg l−1 EBL) significantly relieved the drought-induced inhibition on the activities of ribulose-1,5-bisphosphate carboxylase and nitrate reductase and the contents of relative water, nitrate, and protein, particularly in hybrid Giza 129. Changes in the content of free polyamines and in the activity of polyamine biosynthetic and catabolic enzymes were detected when water-stressed plants were treated with EBL and/or Spm. Putrescine content and arginine decarboxylase activity were significantly increased in stressed hybrid Giza 10 plants treated by the dual application. However, spermidine and Spm levels as well as ornithine decarboxylase and S-adenosylmethionine decarboxylase activities were significantly increased in stressed hybrid Giza 129 plants treated with the dual application. Diamine oxidase, polyamine oxidase, protease activity, carbonyl content, and ethylene formation were increased in response to water stress and significantly decreased when stressed plants were treated by the dual application. Total free amino acids, phenols, and flavonoids concentration were increased with the increasing water stress level; moreover, they further increased in stressed plants treated with the dual application. Overall, the combined utilization of EBL and Spm serves as complementary tools to confer plant drought tolerance by altering polyamine, ethylene, and protein levels.