Profiling of the Contents of Amino Acids, Water-Soluble Vitamins, Minerals, Sugars and Organic Acids in Turkish Hazelnut Varieties

Roots of whole 3 week-old seedlings of maize were exposed for 24 h to a solution of PbCl2. The concentrations of Pb were: 0, 200, 400, 800, 1200, 2400 mg dm-3. The amount of Pb taken up by roots was independent of the concentration of this element in the medium. The Pb taken up by shoots increased linearly with increasing treatment concentration. Pb caused: concentration-dependent inhibition of photosynthesis (PS), transpiration (T), 14CO2 uptake and incorporation of label into photosynthetic products. The largest limitation by Pb of the flow of photoassimilated carbon occurred into starch and sugar phosphates. Among the water-soluble photoassimilates, the largest limitation of carbon flow occurred into organic acids and sugars and the smallest into amino acids.

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Chemistry of non-enzymic browning. II. Reactions between Amino Acids, Organic Acids, and sugars in freeze-dried Apricots and Peaches

Australian Journal of Chemistry ◽

10.1071/ch9570182 ◽

1957 ◽

Vol 10 (2) ◽

pp. 182 ◽

Cited By ~ 65

Author(s):

EFLJ Anet ◽

TM Reynolds

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Organic Acids ◽

Malic Acid ◽

Water Soluble ◽

Freeze Dried ◽

Before And After ◽

Enzymic Browning ◽

Related Compounds ◽

Organic Acids And Sugars

The water-soluble constituents of apricot and peach purees were examined qualitatively and quantitatively before and after storage for 4 to 16 months at 25 �C and 70 per cent. R.H. All samples contained all the amino acids, organic acids, sugars, and polyols previously detected (Reynolds 1967 ; Anet and Reynolds 1955a, 1966b ; Ash and Reynolds 1955a, 1955b) in the two species of fruit. The stored samples also contained the following compounds : eleven 1-(N-amino acid)-1-deoxyfructoses, traces of two 2-(N-amino acid)-2-deoxyglucoses, nine by-products of unknown constitution formed from the reaction between glucose and aspartic acid and glucose and asparagine, three compounds formed from ammonia and glucose, two series of sucrose, glucose, and fructose mono-esters of malic acid, traces of a sorbitol mono-ester of malic acid, and some sugar mono-esters of citric acid.�The free amino acid or organic acid lost was equal, on a molar basis, to the amino acid-deoxyfructoses (and related compounds) and sugar esters formed. After allowing for these derivatives as much as 7 per cent. of the total sugar (calculated as hexoses) originally present could not be accounted for.

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Methods of plant root exudates analysis: a review

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201159030241 ◽

2011 ◽

Vol 59 (3) ◽

pp. 241-246 ◽

Cited By ~ 13

Author(s):

Peter Dundek ◽

Ladislav Holík ◽

Tomáš Rohlík ◽

Ladislav Hromádko ◽

Valerie Vranová ◽

...

Keyword(s):

Amino Acids ◽

Organic Acids ◽

Root Exudates ◽

Organic Molecules ◽

Current Knowledge ◽

Plant Root ◽

Water Soluble ◽

Low Molecular Weight ◽

Total Carbohydrates ◽

Electrophoresis Of Proteins

The aim of this review is to summarise current knowledge on methods being used to determine individual compounds and properties of water-soluble plant root exudates. These compounds include amino acids, organic acids and simple sugars, as well as polysaccharides, proteins and organic substances. Qualitative composition of water-soluble root exudates and exudation rate are commonly measured with the aim of consequent synthetic preparation of plant root exudates to be supplied to soil to create artificial rhizosphere for different experimental purposes. Root exudates collection usually requires consequent filtration or centrifugation to remove solids, root detritus and microbial cell debris, and consequent concentration using an evaporator, lyophilizator or ultrafiltration. Methods used for analysis of total groups of compounds (total proteins and total carbohydrates) and total organic carbon are simple. On the other hand, HPLC or GS/MS are commonly used to analyse individual low molecular weight organic molecules (sugars, organic acids and amino acids) with separation using different columns. Other properties such as pH, conductivity or activity of different enzymes as well as gel electrophoresis of proteins are sometimes assessed. All of these methods are discussed in this work.

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Dominant amino acids, organic acids and sugars in water-soluble root exudates of C4 plants: a mini-review

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201058050441 ◽

2010 ◽

Vol 58 (5) ◽

pp. 441-446 ◽

Cited By ~ 4

Author(s):

Valerie Vranová ◽

Hana Kaňová ◽

Klement Rejšek ◽

Pavel Formánek

Keyword(s):

Amino Acids ◽

Organic Acids ◽

Aspartic Acid ◽

Root Exudates ◽

Water Soluble ◽

C4 Plants ◽

Aminobutyric Acid ◽

Organic Acids And Sugars

The aim of this mini-review was to identify the dominant carbohydrates, organic acids and amino acids in water-soluble root exudates of plants which represent dominant compounds there. The study is focused on plants of C4-type of metabolism taking into account available literature. From group of carbohydrates, those dominant are represented glucose, fructose, arabinose and sucrose. Between dominant amino acids occurring in root exudates of C4-metabolism plants are alanine, serine, arginine, glutamine, glutamic and aspartic acid, glycine, proline, cystine, lysine and g-aminobutyric acid. Citric, malic, tartaric, succinic, trans-aconitic represent the dominant organic acids. This knowledge may be useful for planning analyses of these compounds in root exudates of C4plants. Except for this preparation of synthetic root exudates to simulate rhizosphere of C4plants may be performed based on these results.

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Profiles of Secondary Metabolites (Phenolic Acids, Carotenoids, Anthocyanins, and Galantamine) and Primary Metabolites (Carbohydrates, Amino Acids, and Organic Acids) during Flower Development in Lycoris radiata

Biomolecules ◽

10.3390/biom11020248 ◽

2021 ◽

Vol 11 (2) ◽

pp. 248

Author(s):

Chang Ha Park ◽

Hyeon Ji Yeo ◽

Ye Jin Kim ◽

Bao Van Nguyen ◽

Ye Eun Park ◽

...

Keyword(s):

Amino Acids ◽

Secondary Metabolites ◽

Organic Acids ◽

Phenolic Acids ◽

Flower Development ◽

Developmental Stages ◽

Tca Cycle ◽

Primary And Secondary Metabolites ◽

Hydrophilic Compounds ◽

Tca Cycle Intermediates

This study aimed to elucidate the variations in primary and secondary metabolites during Lycorisradiata flower development using high performance liquid chromatography (HPLC) and gas chromatography time-of-flight mass spectrometry (GC-TOFMS). The result showed that seven carotenoids, seven phenolic acids, three anthocyanins, and galantamine were identified in the L. radiata flowers. Most secondary metabolite levels gradually decreased according to the flower developmental stages. A total of 51 metabolites, including amines, sugars, sugar intermediates, sugar alcohols, amino acids, organic acids, phenolic acids, and tricarboxylic acid (TCA) cycle intermediates, were identified and quantified using GC-TOFMS. Among the hydrophilic compounds, most amino acids increased during flower development; in contrast, TCA cycle intermediates and sugars decreased. In particular, glutamine, asparagine, glutamic acid, and aspartic acid, which represent the main inter- and intracellular nitrogen carriers, were positively correlated with the other amino acids and were negatively correlated with the TCA cycle intermediates. Furthermore, quantitation data of the 51 hydrophilic compounds were subjected to partial least-squares discriminant analyses (PLS-DA) to assess significant differences in the metabolites of L. radiata flowers from stages 1 to 4. Therefore, this study will serve as the foundation for a biochemical approach to understand both primary and secondary metabolism in L. radiata flower development.

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Water-soluble organic acids in sedimentary rocks: Compositions and influencing factors

Journal of Natural Gas Geoscience ◽

10.1016/j.jnggs.2021.06.003 ◽

2021 ◽

Author(s):

Pengpeng Li ◽

Shixin Zhou ◽

Baoqiang Ji ◽

Xiaopeng Liu ◽

Jing Li ◽

...

Keyword(s):

Organic Acids ◽

Influencing Factors ◽

Sedimentary Rocks ◽

Water Soluble

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Interactions of water-soluble zinc porphyrin with amino acids

Inorganica Chimica Acta ◽

10.1016/s0020-1693(00)88867-2 ◽

1988 ◽

Vol 153 (4) ◽

pp. 199-200 ◽

Cited By ~ 9

Author(s):

E. Mikros ◽

A. Gaudemer ◽

R. Pasternack

Keyword(s):

Amino Acids ◽

Water Soluble ◽

Zinc Porphyrin ◽

Soluble Zinc

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Amino acids, organic acids and sugars present in mycelium of Alternaria triticina and A. tenuis

Transactions of the British Mycological Society ◽

10.1016/s0007-1536(76)80180-5 ◽

1976 ◽

Vol 67 (3) ◽

pp. 498-499 ◽

Cited By ~ 3

Author(s):

C.S.K. Vijaya Kumar ◽

A.S. Rao

Keyword(s):

Amino Acids ◽

Organic Acids ◽

Organic Acids And Sugars

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Incorporation of alternative amino acids into cyanophycin by different cyanophycin synthetases heterologously expressed in Corynebacterium glutamicum

AMB Express ◽

10.1186/s13568-021-01217-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Ramona Wördemann ◽

Lars Wiefel ◽

Volker F. Wendisch ◽

Alexander Steinbüchel

Keyword(s):

Amino Acids ◽

Dry Weight ◽

Growth Conditions ◽

Amino Acid Biosynthesis ◽

Water Soluble ◽

Lysine Content ◽

Polyaspartic Acid ◽

Acid Biosynthesis ◽

Cyanophycin Synthetase ◽

Potential Precursor

AbstractCyanophycin (multi-l-arginyl-poly-l-aspartic acid; also known as cyanophycin grana peptide [CGP]) is a biopolymer that could be used in various fields, for example, as a potential precursor for the synthesis of polyaspartic acid or for the production of CGP-derived dipeptides. To extend the applications of this polymer, it is therefore of interest to synthesize CGP with different compositions. A recent re-evaluation of the CGP synthesis in C. glutamicum has shown that C. glutamicum is a potentially interesting microorganism for CGP synthesis with a high content of alternative amino acids. This study shows that the amount of alternative amino acids can be increased by using mutants of C. glutamicum with altered amino acid biosynthesis. With the DM1729 mutant, the lysine content in the polymer could be increased up to 33.5 mol%. Furthermore, an ornithine content of up to 12.6 mol% was achieved with ORN2(Pgdh4). How much water-soluble or insoluble CGP is synthesized is strongly related to the used cyanophycin synthetase. CphADh synthesizes soluble CGP exclusively. However, soluble CGP could also be isolated from cells expressing CphA6308Δ1 or CphA6308Δ1_C595S in addition to insoluble CGP in all examined strains. The point mutation in CphA6308Δ1_C595S partially resulted in a higher lysine content. In addition, the CGP content could be increased to 36% of the cell dry weight under optimizing growth conditions in C. glutamicum ATCC13032. All known alternative major amino acids for CGP synthesis (lysine, ornithine, citrulline, and glutamic acid) could be incorporated into CGP in C. glutamicum.

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A Water-Soluble Copper-Immobilized Covalent Organic Framework Functioning as an “OFF–ON” Fluorescent Sensor for Amino Acids

Materials Advances ◽

10.1039/d1ma00234a ◽

2021 ◽

Author(s):

Lamiaa Reda Ahmed ◽

Ahmed F. M. EL-Mahdy ◽

Cheng-Tang Pan ◽

Shiao-Wei Kuo

Keyword(s):

Amino Acids ◽

Fluorescent Sensor ◽

Water Soluble ◽

One Pot ◽

Covalent Organic Framework ◽

The One ◽

Organic Framework

In this paper, we describe the construction of a new fluorescent hydroxyl- and hydrazone-based covalent organic framework (TFPB-DHTH COF) through the one-pot polycondensation of 1,3,5-tris(4-formylphenyl)benzene (TFPB) and 2,5-dihydroxyterephthalohydrazide (DHTH) under...

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