Foliar treatment with proline and tyrosine affect the growth and yield of beetroot and some pigments in beetroot leaves

El-Sherbeny, M. Rashad; Silva, Jaime A. Teixeira da

doi:10.2478/johr-2013-0027

Cited by 24 publications

(13 citation statements)

References 11 publications

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“…In other studies, it was also observed that application of these AAs had positive effects on the crops. In a study conducted by El-Sherbeny and da Silva [30] in beet plants, foliar application of tyrosine at a concentration of 0.55 mM increased the vegetative growth of the plants. Additionally, an assay performed with lettuce plants grown in a hydroponic system to which methionine was applied through the roots showed that this application notably improved the performance of the crop [11].…”

Section: Discussionmentioning

confidence: 94%

Application of Biostimulants Containing Amino Acids to Tomatoes Could Favor Sustainable Cultivation: Implications for Tyrosine, Lysine, and Methionine

et al. 2020

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Tomato (Solanum lycopersicum L.) is one of the most important crops worldwide as per its production and the surface cultivated. The use of biostimulant products plays a fundamental role in mitigating the negative effects of climate change and reducing the use of conventional fertilizers. Many of these products are formulated with amino acids (AAs). This study was conducted to elucidate the effects of the foliar application of tyrosine (Tyr) (15 mM), lysine (Lys) (15 mM), methionine (Met) (15 mM), and a Tyr + Lys + Met (15 mM + 15 mM + 15 mM) mixture on the physiological and metabolic processes, vegetative growth, and nutritional state of Optima variety tomato plants. The results showed that application of the AAs, individually and combined, was beneficial for the growth of the aerial part, net assimilation of CO2, and water use efficiency (WUE). Application of Tyr resulted in the best WUE. The metabolomics study revealed that AA treatments increased the concentration of proline, fructose, and glucose, whose role was to stimulate glycolysis and the Krebs cycle. Thus, the plants could have greater reduction power and energy, as well as more carbon molecules for their growth processes.

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Section: Discussionmentioning

confidence: 94%

Application of Biostimulants Containing Amino Acids to Tomatoes Could Favor Sustainable Cultivation: Implications for Tyrosine, Lysine, and Methionine

et al. 2020

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“…Most of the amino acids enhanced by microbial treatments in this study had been reported to benefit plant growth. For example, proline (proline-hydroxyproline) could promote plant growth and improve the apparent characteristics [71], leucine was regarded as a stimulator of plant growth, regulating the photosynthesis of crops [72], valine and serine are the precursors of auxin, and methionine, phenylalanine, and threonine were found to be associated with germination [73]. In addition, phenylalanine was reported to be a precursor of anthocyanin, and could promote the biosynthesis of lignin [74].…”

Section: Discussionmentioning

confidence: 99%

Profiling of Plant Growth-Promoting Metabolites by Phosphate-Solubilizing Bacteria in Maize Rhizosphere

Shen

Dong

et al. 2021

Plants

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Microbial treatment has recently been attracting attention as a sustainable agricultural strategy addressing the current problems caused by unreasonable agricultural practices. However, the mechanism through which microbial inoculants promote plant growth is not well understood. In this study, two phosphate-solubilizing bacteria (PSB) were screened, and their growth-promoting abilities were explored. At day 7 (D7), the lengths of the root and sprout with three microbial treatments, M16, M44, and the combination of M16 and M44 (Com), were significantly greater than those with the non-microbial control, with mean values of 9.08 and 4.73, 7.15 and 4.83, and 13.98 and 5.68 cm, respectively. At day 14 (D14), M16, M44, and Com significantly increased not only the length of the root and sprout but also the underground and aboveground biomass. Differential metabolites were identified, and various amino acids, amino acid derivatives, and other plant growth-regulating molecules were significantly enhanced by the three microbial treatments. The profiling of key metabolites associated with plant growth in different microbial treatments showed consistent results with their performances in the germination experiment, which revealed the metabolic mechanism of plant growth-promoting processes mediated by screened PSB. This study provides a theoretical basis for the application of PSB in sustainable agriculture.

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“…Methionine increased the dry weight of shoots in corn [18]. Spraying with proline and tyrosine increased the length and dry weight of beetroot [19]. Cysteine plays a vital role in the cytosol and the mitochondria of plant cells.…”

Section: Resultsmentioning

confidence: 99%

Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

Shekari¹,

Javanmardi²

2017

Adv Crop Sci Tech

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The greenhouse experiments were carried out to study the effects foliar application of L-cysteine, L-methionine and Aminoacid fertilizer (AA) on Broccoli (Brassica oleracea var. italica) transplants. L-cysteine, L-methionine and AA was applied at three concentrations, 0, 100 and 200 mg L -1 commencing from 20 days after the sowing. Physical and chemical properties of the transplants determined according to the methods described by Tabatabaee. Results showed that L-cysteine at concentrations of 100 and 200 mg L -1 increased the leaf area by 53% and 48%, while methionine and the amino-acid-bearing fertilizer, both at 200 mg L -1 , increased the leaf area by 59% and 48% respectively. These percentages are expressed in comparison to the control. L-cysteine at concentrations of 100 and 200 mg L -1 increased the fresh weight of shoots by 50% and 55%, respectively, while methionine at 100 and 200 mg L -1 increased the fresh weight of shoots by 55% and 60% respectively. The amino-acid-bearing fertilizer treatments at a concentration of 200 mg L -1 increased the shoot dry weight of Broccoli seedlings by 38%, L-cysteine at concentrations of 100 and 200 mg L -1 increased the root dry weight by 26% and 60%, methionine at 100 and 200 mg L -1 increased the root dry weight by 31% and 177%. The results showed that methionine at 200 mg L -1 increased chlorophyll by 61%. The amino-acid-bearing fertilizer at a concentration of 200 mg L -1 managed to increase the length of transplants by 30%, compared to the control. Methionine at 100 and 200 mg.L -1 increased the amount of nitrogen in transplanted Broccoli by 36% and 38%.

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Foliar treatment with proline and tyrosine affect the growth and yield of beetroot and some pigments in beetroot leaves

Cited by 24 publications

References 11 publications

Application of Biostimulants Containing Amino Acids to Tomatoes Could Favor Sustainable Cultivation: Implications for Tyrosine, Lysine, and Methionine

Application of Biostimulants Containing Amino Acids to Tomatoes Could Favor Sustainable Cultivation: Implications for Tyrosine, Lysine, and Methionine

Profiling of Plant Growth-Promoting Metabolites by Phosphate-Solubilizing Bacteria in Maize Rhizosphere

Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

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