Infl uence of foliar application with amino acids and citric acid on physiological and phytochemical responses of Artemisia abrotanum produced by in vitro culture

El-Zefzafy, M. M.; Shahhat, Ismail; Yousef, Rania S.; Elsharkawy, Eman

doi:10.21786/bbrc/9.4/18

Cited by 9 publications

(5 citation statements)

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“…Foliar application with tyrosine of 100 mg L −1 concentration had the greatest influence on the essential oil odor profile in M. spicata ‘Crispa’ and M. spicata ‘Morrocan’ mint. Our results agree with those of EL-Zefzafy et al [ 42 ] and Reham et al [ 34 ], who found aromatic amino acids had a positive effect on the amount of essential oil and in the chemical composition of Artemisia abrotanum and Ocimum basilicum plants. The highest essential oil content (4.45%), yield of essential oil (1.16 mL/plant), and chamazulen content (22.37% and 23.50%) in Artemisia abrotanum plants were obtained in plants treated with phenylalanine of 250 mg L −1 concentration, while foliar application with phenylalanine of 50 mg L −1 and 100 mg L −1 concentration increased essential oil content in Ocimum basilicum plants by 0.04–0.10 percentage units, compared with unsprayed plants.…”

Section: Discussionsupporting

confidence: 93%

“…Mentha species are widely cultivated in the world as industrial crops for essential oil production and as a source of different phenolic compounds for extracts. Research has been performed to investigate the possibilities for stimulating the synthesis of these secondary metabolites by using aromatic amino acids in vivo, in vitro, and in field conditions with different plants; however, there remains inadequate data on how effective aromatic amino acids as precursors are for the promotion of the synthesis of terpenoids and flavonoids in mint in field conditions [ 42 , 43 , 44 , 45 ]. The experiment’s results showed that stability was not found throughout the years of the experiment, nor was stability found in the statistically significant interaction between the years and the amounts of essential oil, essential oil odor profile, and flavonoids.…”

Section: Discussionmentioning

confidence: 99%

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Impact of Foliar Application of Amino Acids on Essential Oil Content, Odor Profile, and Flavonoid Content of Different Mint Varieties in Field Conditions

Velička

Tarasevičienė

Hallmann

et al. 2022

Plants

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Mint is an industrial plant that is a good source of essential oil and many phenolic compounds that have several positive benefits to human health and can be used to prevent the development of many diseases. The aim of this research was to investigate the possibility of increasing essential oil and flavonoid content, changing the chemical composition of these compounds in different mint cultivars under foliar application with precursors (phenylalanine, tryptophan, and tyrosine) at two concentrations, 100 and 200 mg L−1, to enable the possibilities for wider use of these plants when they are grown in field conditions. Spraying with phenylalanine at 100 mg L−1 concentration increased essential oil content in Mentha piperita ‘Granada’ plants by 0.53 percentage units. Foliar application with tyrosine solutions at 100 mg L−1 concentration most effectively influenced the essential oil odor profile Mentha spicata ‘Crispa’. The highest number of total flavonoids was in Mentha piperita ‘Swiss’ sprayed with tyrosine at 100 mg L−1 concentration. The flavonoid content depended on the mint cultivar, amino acids, and their concentration. The results showed that the effect of amino acid solutions on different secondary metabolites’ quantitative and qualitative composition differed depending on the mint cultivar; therefore, amino acids and their concentrations must be selected based on the cultivar they are targeting.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Impact of Foliar Application of Amino Acids on Essential Oil Content, Odor Profile, and Flavonoid Content of Different Mint Varieties in Field Conditions

Velička

Tarasevičienė

Hallmann

et al. 2022

Plants

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“…Notably, the most pronounced impact on plant height was observed when Trp was applied at concentrations of 300 mg/L, followed by Gln at 300 mg/L. This positive influence of AAs aligns with similar observations documented in numerous plant species [37][38][39].…”

Section: Discussionsupporting

confidence: 89%

Enhancing Growth, Yield, and Antioxidant Activity of Bitter Gourd (Momordica charantia L.) through Amino Acid Foliar Spray Application

El-Khayat,

Elbagory,

Elsadek

et al. 2023

Horticulturae

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Bitter gourd has picked up noteworthy consideration for its pharmacological benefits. However, the impact of amino acids (AAs) dosage on growth, yield, and antioxidants is uncertain. In this study, we investigated the effects of foliar spraying bitter gourd with 100, 200, and 300 mg/L dosages of tryptophan (Trp), glutamine (Gln), and phenylalanine (Phe). The results revealed that Trp, at a dosage of 300 mg/L, produced the most substantial increase in plant length, followed by 300 mg/L Phe. Additionally, the highest values of the fresh dry weight of the plants, fresh weight of the first fruit, fruit number per plant, fresh weight of the fruits per plant, and total fruit output per hectare were seen at 300 mg/L of Trp, followed by 300 mg/L of Gln. Phe at 300 mg/L yielded the highest levels of total phenolics and total flavonoids, coupled with strong scavenging activity against 2,2-diphenyl-1-picrylhydrazyl. These outcomes show the potential of Trp and Gln foliar sprays to enhance bitter gourd growth, yield, and certain antioxidant compounds. These findings carry substantial implications for the enhancement of bitter gourd cultivation and quality. By revealing AA’s potential for improving bitter gourd, our research contributes to bolstering the agricultural sustainability of this remarkable crop.

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“…However, the highest values in most of abovementioned parameters were achieved by the interaction treatment of 75 and 100 % of recommended rate and Ltryptophan plus phenylalanine compared to control and the other treatments under study. Moreover, EL-Zefzafy et al (2016) demonstrated that foliar application of either amino acids (tryptophan and phenylalanine) significantly enhanced the growth of Artemisia abrotanum (plant height, number of branches, fresh and dry biomass). Allahdadi and Farzane (2018) showed that, nitrogen application in higher rates improved the growth of artichoke.…”

Section: Effect Of Interaction Between Nitrogen Fertilization and Amimentioning

confidence: 98%

Response of Coriander Vegetative Growth, Yield Components, Piercing–sucking Pests Infestation and Associated Natural Enemies to Nitrogen Fertilizer Rates and Foliar Spray With L-Tryptophan, Phenylalanine Acids Under Sandy Soil Conditions

El-Mogy

Attia

Elbohy

et al. 2019

Scient. J. of Flowers and Ornament. Plants

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The present work was conducted at the Experimental Farm of EL-Quassasin Horticultural Research Station, Ismailia Governorate, Egypt, during the two winter consecutive seasons of 2016/2017 and 2017/2018. The aim was, to investigate the effect of different nitrogen fertilization rates (control, 50, 75 and 100% of recommended N rate), amino acids type (control, L-tryptophan, phenylalanine and L-tryptophan + phenylalanine) as a foliar spray at 150 mg/l for each one and their interactions on growth and production of coriander and piercing-sucking pests infestation. The obtained results indicated that, nitrogen fertilization rate at 300 kg ammonium sulfate/feddan (recommended rate) significantly increased growth parameters (plant height, number of branches/plant and fresh and dry herb weights/plant), root system (fresh and dry weights of roots/plant and root length), yield components (number of umbels/plant and number of florets/umbel/plant, fruit yield/plant and /feddan), volatile oil productivity (volatile oil percentage, volatile oil yield/plant and /feddan) and chemical constituents (N, P, K and total carbohydrates percentages) compared to control. Moreover, the highest values of the above mentioned characters were registered by foliar spray of Ltryptophan + phenylalanine with significant differences between the other rates under study. Generally, the better growth characters and root system, higher yield components and volatile oil production, chemical constituents of fruits could be obtained by spraying Ltryptophan + phenylalanine at 150 mg/l on fertilized coriander plants with nitrogen at the recommended rate, followed by the combined treatment of nitrogen fertilization as 75% plus L-tryptophan + phenylalanine. In the same trend, highly significant differences (≤ 0.05) between the mean numbers of the piercing-sucking pests; i.e., Hyadaphis coriandri (Das), Bemisia tabaci (Genn.), Thrips tabaci (Lind.), Tetranychus urticea Koch., and their associated natural enemies i.e., Coccinella spp, Chrisoprella carnea (Steph.), aphids parasitoids and predacious mite which were resulted as the variation in nitrogen fertilization rates, and foliar spray of amino acids types. Also, the simple correlation calculation revealed significant coefficients for the relation between each of the surveyed pests and their associated E.A.M. El-Mogy et al. 22 natural enemies correlated with growth parameters (plant height and number of branches/plant) and seed yield/plant.

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Infl uence of foliar application with amino acids and citric acid on physiological and phytochemical responses of Artemisia abrotanum produced by in vitro culture

Cited by 9 publications

References 0 publications

Impact of Foliar Application of Amino Acids on Essential Oil Content, Odor Profile, and Flavonoid Content of Different Mint Varieties in Field Conditions

Impact of Foliar Application of Amino Acids on Essential Oil Content, Odor Profile, and Flavonoid Content of Different Mint Varieties in Field Conditions

Enhancing Growth, Yield, and Antioxidant Activity of Bitter Gourd (Momordica charantia L.) through Amino Acid Foliar Spray Application

Response of Coriander Vegetative Growth, Yield Components, Piercing–sucking Pests Infestation and Associated Natural Enemies to Nitrogen Fertilizer Rates and Foliar Spray With L-Tryptophan, Phenylalanine Acids Under Sandy Soil Conditions

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