Effect of Mixed Amino Acids on Crop Growth

Liu, Xing-Quan; Lee, Kyu-Seung

doi:10.5772/37461

Cited by 26 publications

(23 citation statements)

References 110 publications

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“…The ability of tropical PE also containing amino acids to minimize the accumulation of nitrates could be associated with the regulation of several metabolic pathways of plant N metabolism, in particular, nitrite and nitrate reductase, as well as glutamate synthase and glutamine synthetase activities (Calvo et al, 2014;Colla et al, 2015b). In line with our results, several studies carried out on barley, maize, soybean, and wheat (Liu and Lee, 2012) demonstrated that exogenous amino acids and amides could downregulate nitrate uptake.…”

Section: Resultssupporting

confidence: 89%

Foliar Applications of Protein Hydrolysate, Plant and Seaweed Extracts Increase Yield but Differentially Modulate Fruit Quality of Greenhouse Tomato

Colla

Cardarelli

Bonini³

et al. 2017

horts

175

159

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The current research aimed 1) at evaluating the effects of three biostimulants (legume-derived protein hydrolysate, PH; plant and seaweed extract, PE and SWE) on yield performance and nutritional quality, mineral profiling, antioxidant activities, lycopene, total phenols and ascorbic acid of greenhouse tomato (Solanum lycopersicum L.) under soil culture and 2) to assess the economic profitability of biostimulant applications. Plants were sprayed four times during the growing cycle with a solution containing 1, 3, and 3 mL·L−1 of PE, SWE, and PH, respectively. Foliar applications of biostimulants improved the early and total marketable yield of fresh tomato. The increase of total yield by PE, SWE, and PH was 11.7%, 6.6% and 7.0%, respectively, in comparison with untreated plants. Legume-derived PH increased lycopene, total soluble solids, and K and Mg contents, thereby increasing the nutritional value of the fruits. The applications of SWE, and to a lesser degree PH, enhanced the Ca concentration in the fruit tissue. Our findings indicated that the three tested biostimulants, although they increased the total production cost, improved the nutrient status and yield performance of the crop to a level resulting in net economic benefits.

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Section: Resultssupporting

confidence: 89%

Foliar Applications of Protein Hydrolysate, Plant and Seaweed Extracts Increase Yield but Differentially Modulate Fruit Quality of Greenhouse Tomato

Colla

Cardarelli

Bonini³

et al. 2017

horts

175

159

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“…The soy flour treated seeds were sown in a peat-perlite-vermiculite medium in this greenhouse study. Additional research studies have also documented enhanced plant growth with the application of protein hydrolysates or amino acids (Liu and Lee, 2012). Gelatin, an animal-derived protein, applied as gelatin capsules was placed adjacent to seeds and acted as a biostimulant in greenhouse studies (Wilson, 2015).…”

Section: Discussionmentioning

confidence: 99%

Investigation of Soy Protein–based Biostimulant Seed Coating for Broccoli Seedling and Plant Growth Enhancement

Amirkhani

Netravali

Wei-liang

et al. 2016

horts

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This research presents a novel method of using plant-derived protein hydrolysates as seed coating materials. The objective of this study was to develop seed coating formulations using soy flour, a sustainable, inexpensive, and green source, as a biostimulant using broccoli as the model system. A 10% suspension of soy flour was used as the seed treatment binder in all coatings. The solid particulate filler was composed of mixtures of soy flour, cellulose, and diatomaceous earth, together termed as SCD. All SCD components were homogenized in water, then dried and ground to a fine particle size <106 µm. The SCD coatings were applied with rotary pan seed coating equipment at 25% of the seed weight. Increasing the proportion of soy flour increased the seed coating strength and also the time for the coating to disintegrate after soaking in water. As a result, the seed coatings reduced the percentage germination and the germination rate compared with the nontreated control. However, the 10-day-old seedling root and shoot growth showed significant improvement for all SCD coating treatments compared with controls. Plant growth and development was also measured after 30 days in the greenhouse. Fresh weight (FW) and dry weight (DW), leaf area, plant height, leaf development, Soil-Plant Analyses Development (SPAD) index (chlorophyll measurement), and nitrogen (N) per plant were all greater from coatings with 30%, 40%, and 50% soy flour than the noncoated control. Nitrogen, from the soy flour applied in the seed coatings, ranged from 0.024 to 0.073 mg per seed, while the enhanced N per plant ranged from 1.7 to 8.5 mg. The coating treatment with 0.063 mg N per seed resulted in the greatest plant leaf area and highest N content. Nitrogen applied in the seed coating only accounted for 1% to 2% of the enhanced N in the plants, indicating the soy flour acted as a biostimulant rather than a fertilizer.

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“…The absence of indolic carboxylic acids in the cyp79B2/B3 was clearly a result of blockage of the indole-3-acetaldoxime production [11,12]. In addition, the increased levels of some amino acids in the cyp79B2/B3 may indirectly affect plant growth, as the accumulation of amino acids were shown to decrease nitrate uptake and as a consequence affect plant growth [152]. These findings might explain the growth phenotype of the cyp79B2/B3.…”

Section: Glucosinolate Biosynthesis May Be An Exception To the Theorymentioning

confidence: 97%

New nodes and edges in the glucosinolate molecular network revealed by proteomics and metabolomics of Arabidopsis myb28/29 and cyp79B2/B3 glucosinolate mutants

Mostafa

Zhu

Yoo

et al. 2016

Journal of Proteomics

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Glucosinolates in Brassicales constitute an important group of natural metabolites important for plant defense and human health. Its biosynthetic pathways and transcriptional regulation have been well-studied. Using Arabidopsis mutants of important genes in glucosinolate biosynthesis, quantitative proteomics and metabolomics led to identification of many proteins and metabolites that are potentially related to glucosinolate metabolism. This study provides a comprehensive insight into the molecular networks of glucosinolate metabolism, and will facilitate efforts toward engineering and breeding of glucosinolate profiles for enhanced crop defense, and nutritional value.

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Effect of Mixed Amino Acids on Crop Growth

Cited by 26 publications

References 110 publications

Foliar Applications of Protein Hydrolysate, Plant and Seaweed Extracts Increase Yield but Differentially Modulate Fruit Quality of Greenhouse Tomato

Foliar Applications of Protein Hydrolysate, Plant and Seaweed Extracts Increase Yield but Differentially Modulate Fruit Quality of Greenhouse Tomato

Investigation of Soy Protein–based Biostimulant Seed Coating for Broccoli Seedling and Plant Growth Enhancement

New nodes and edges in the glucosinolate molecular network revealed by proteomics and metabolomics of Arabidopsis myb28/29 and cyp79B2/B3 glucosinolate mutants

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