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You searched for: Subject term Triticum aestivum Remove constraint Subject term: Triticum aestivum Subject term esters Remove constraint Subject term: esters Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Application of Hansch's model to guaianolide ester derivatives: a quantitative structure-activity relationship study

Author:
Macias, F.A.; Velasco, R.F.; Castellano, D.; Galindo, J.C.G.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.9 pp. 3530-3539
ISSN:
0021-8561
Subject:
water solubility; coleoptiles; seedling growth; herbicidal properties; quantitative structure-activity relationships; phytotoxicity; physiological transport; herbicides; wheat; bioassays; guaianolides; Triticum aestivum; plasma membrane
Abstract:
... A quantitative structure-activity study to evaluate the effect of lipophilia/aqueous solubility on etiolated wheat coleoptiles elongation has been carried out with 34 guaianolides having different numbers of hydroxyl groups and ester side chains of variable length and structure: linear, branched, aromatic, and unsaturated. Compounds have been tested in a range of concentrations between 10 and 1000 ...
DOI:
10.1021/jf048703d

2. Calcium supply effects on wheat cultivars differing in salt resistance with special reference to leaf cytosol ion homeostasis

Author:
Sherif H. Morgan; Sylvia Lindberg; Karl H. Mühling
Source:
Physiologia plantarum 2013 v.149 no.3 pp. 321-328
ISSN:
0031-9317
Subject:
Triticum aestivum; calcium; cultivars; cytosol; dyes; esters; fluorescence microscopy; homeostasis; ions; leaves; nutrient solutions; pH; protoplasts; salinity; salt tolerance; sodium chloride; wheat
Abstract:
... Salinity causes changes in cytosolic Ca²⁺, [Ca²⁺]cyₜ, Na⁺, [Na⁺]cyₜ and pH, pHcyₜ, which induce specific reactions and signals. Reactions causing a rebalancing of the physiological homeostasis of the cytosol could result in plant resistance and growth. Two wheat cultivars, Triticum aestivum, Seds1 and Vinjett, were grown in nutrient solution for 7 days under moderate salinity (0 and 50 mM NaCl) wi ...
DOI:
10.1111/ppl.12036
PubMed:
23413983

3. Characterization of a cinnamoyl-CoA reductase that is associated with stem development in wheat

Author:
Ma, Qing-Hu
Source:
Journal of experimental botany 2007 v.58 no.8 pp. 2011-2021
ISSN:
0022-0957
Subject:
Triticum aestivum; aldehydes; biosynthesis; complementary DNA; cultivars; enzyme activity; enzymes; esters; gene expression; genes; heading; leaves; lignin; messenger RNA; metabolites; phylogeny; recombinant proteins; roots; stems; wheat
Abstract:
... Cinnamoyl-CoA reductase (CCR) is responsible for the CoA ester to aldehyde conversion in monolignol biosynthesis, which diverts phenylpropanoid-derived metabolites into the biosynthesis of lignin. To gain a better understanding of lignin biosynthesis and its biological function, a cDNA encoding CCR was identified from wheat (Triticum aestivum L.), and designated as Ta-CCR1. Phylogenetic analysis i ...
DOI:
10.1093/jxb/erm064
PubMed:
17452751

4. The Chemistry and Biochemistry of Organic Components in the Soil Solutions of Wheat Rhizospheres

Author:
Carlos M. Monreal; Morris Schnitzer
Source:
Advances in agronomy 2013 v.121 no. pp. 179-251
ISSN:
0065-2113
Subject:
Triticum aestivum; alkanes; amino acids; carbohydrates; centrifugation; developmental stages; energy resources; esters; fatty acids; flavonoids; free radicals; humic substances; ionization; leaves; lignin; mass spectrometry; metabolites; nutrients; rhizosphere; soil; soil microorganisms; soil solution; sterols; suberin; synthesis; wheat
Abstract:
... As very little is known about the chemical identities of organic compounds present in soil solutions, the purpose of this research was to chemically characterize soil solutions obtained from a Brunisol on which wheat (Triticum aestivum) was grown to maturity. Soil solutions were obtained by high-speed centrifugation from the rhizospheres at four growth stages of wheat: four leaves unfolded, flag l ...
DOI:
10.1016/B978-0-12-407685-3.00004-9

5. Composition of cuticular waxes coating flag leaf blades and peduncles of Triticum aestivum cv. Bethlehem

Author:
Radu C. Racovita; Shelly Hen-Avivi; Josefina-Patricia Fernandez-Moreno; Antonio Granell; Asaph Aharoni; Reinhard Jetter
Source:
Phytochemistry 2016 v.130 pp. 182-192
ISSN:
0031-9422
Subject:
Triticum aestivum; aldehydes; alkanes; alkylresorcinols; biochemical pathways; coatings; epicuticular wax; esterification; esters; fatty acids; flame ionization; gas chromatography-mass spectrometry; isomers; leaf blade; peduncle; terpenoids; wheat
Abstract:
... The work herein presents comprehensive analyses of the cuticular wax mixtures covering the flag leaf blade and peduncle of bread wheat (Triticum aestivum) cv. Bethlehem. Overall, Gas Chromatography-Mass Spectrometry and Flame Ionization Detection revealed a wax coverage of flag leaf blades (16 μg/cm2) a third that of peduncles (49 μg/cm2). Flag leaf blade wax was dominated by 1-alkanols, while ped ...
DOI:
10.1016/j.phytochem.2016.05.003

6. Determination of intracellular Ca2+ in cells of intact wheat roots: loading of acetoxymethyl ester of Fluo-3 under low temperature

Author:
Zhang, W.H.; Rengel, Z.; Kuo, J.
Source:
plant journal 1998 v.15 no.1 pp. 147-151
ISSN:
0960-7412
Subject:
Triticum aestivum; roots; cytochemistry; temperature; cytoplasm; esters; esterases; cell membranes; diffusion; fluorescence; hydrogen peroxide; ionophores; inorganic ions; calcium; cell wall components
Abstract:
... Loading of Ca2+-sensitive fluorescent probes into plant cells is an essential step to measuring activities of cytoplasmic free Ca2+ ions with a fluorescent imaging technique. A major barrier to the loading of the fluorescent probes into plant cells using the acetoxymethyl (AM) esters of the Ca2+-sensitive dyes is the presence of cell-wall associated esterases. These esterases hydrolyse the esterif ...
DOI:
10.1046/j.1365-313X.1998.00188.x

7. Effect of temperature on lutein esterification and lutein stability in wheat grain

Author:
Fauziah Tufail Ahmad; Robert E. Asenstorfer; Imelda R. Soriano; Daryl J. Mares
Source:
Journal of cereal science 2013 v.58 no.3 pp. 408-413
ISSN:
0733-5210
Subject:
Triticum aestivum; Triticum turgidum subsp. durum; color; durum wheat; esterification; esters; food handling; food industry; lutein; shelf life; temperature
Abstract:
... The creamy colour of many wheat-based end-products is conferred by endogenous lutein. During post-harvest storage of grain, free lutein may be converted in part to potentially more stable lutein mono- and di-fatty acid esters. This study investigates the synthesis of lutein esters and stability of free lutein and lutein esters over a wide range of temperatures in grain of a high lutein bread wheat ...
DOI:
10.1016/j.jcs.2013.08.004

8. Genetic control of lutein esterification in wheat (Triticum aestivum L.) grain

Author:
Fauziah Tufail Ahmad; Diane E. Mather; Hai-Yunn Law; Ming Li; Sana Abdul-Jabbar Yousif; Ken J. Chalmers; Robert E. Asenstorfer; Daryl J. Mares
Source:
Journal of cereal science 2015 v.64 pp. 109-115
ISSN:
0733-5210
Subject:
Triticum aestivum; biosynthesis; carboxylic ester hydrolases; esterification; esters; genes; humans; loci; lutein; parents; rice; tissues; wheat
Abstract:
... Lutein is a naturally occurring plant carotenoid compound that is also an important micro-nutrient for humans. While the biosynthesis of lutein in bread wheat (Triticum aestivum L.) is well understood, in contrast, there is little information on the mechanism or the genetic control involved in conversion of lutein to lutein esters during storage of wheat grain. The purpose of this research was to ...
DOI:
10.1016/j.jcs.2015.05.007

9. Identification of candidate genes for lutein esterification in common wheat (Triticum aestivum) using physical mapping and genomics tools

Author:
C. M. Ávila; M. C. Palomino; D. Hornero-Méndez; S. G. Atienza
Source:
Crop & pasture science 2019 v.70 no.7 pp. 567-574
ISSN:
1836-5795
Subject:
Triticum aestivum; Triticum turgidum subsp. durum; carboxylic ester hydrolases; crossing; durum wheat; enzyme activity; esterification; esters; food chain; genes; genetic background; genomics; genotyping; loci; lutein; nucleotide sequences; pasta; progeny; substitution lines; transferases
Abstract:
... A high carotenoid content is important for the production of pasta from durum wheat (Triticum durum Desf.) and yellow alkaline noodle from common wheat (T. aestivum L.). Carotenoid esters are more stable than free carotenoid during storage and processing, and thus they allow a higher retention through the food chain. Chromosome 7D carries gene(s) for lutein esterification. The aim of this study wa ...
DOI:
10.1071/CP18531

10. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...

11. Metabolomics Reveals Antioxidant Stress Responses of Wheat (Triticum aestivum L.) Exposed to Chlorinated Organophosphate Esters

Author:
Qing Liu; Menglin Liu; Sihan Wu; Bowen Xiao; Xiaolei Wang; Binbin Sun; Lingyan Zhu
Source:
Journal of agricultural and food chemistry 2020 v.68 no.24 pp. 6520-6529
ISSN:
1520-5118
Subject:
Triticum aestivum; biochemical pathways; carbohydrates; carotenoids; chlorophyll; crop quality; esters; food safety; malondialdehyde; metabolites; metabolomics; organophosphorus compounds; oxidative stress; phosphates; photosynthesis; reactive oxygen species; roots; shoots; stress response; wheat
Abstract:
... In this study, wheat (Triticum aestivum L.) was exposed to three of the most typical chlorinated organophosphate esters (OPEs), which are widely present in farmland soil, at environmental concentrations to assess their accumulation, disruption on metabolism, and oxidative stress in wheat. The three OPEs accumulated distinctly in the root and then translocated to the shoot. After exposure for 7 day ...
DOI:
10.1021/acs.jafc.0c01397

12. Monoclonal antibodies to p-coumarate

Author:
Tranquet, Olivier; Saulnier, Luc; Utille, Jean-Pierre; Ralph, John; Guillon, Fabienne
Source:
Phytochemistry 2009 v.70 no.11-12 pp. 1366-1373
ISSN:
0031-9422
Subject:
antibody formation; cell walls; tissue distribution; wheat; lignification; monoclonal antibodies; aleurone layer; p-coumaric acid; esterification; esters; Triticum aestivum; oligosaccharides; ferulic acid
Abstract:
... p-Coumaric acid is one of the predominant phenolic acids acylating the cell walls of grasses; p-coumarates are mainly esterified by lignins and arabinoxylans. Here we describe the production and characterisation of two monoclonal antibodies against p-coumarates. The 5-O-pCou-Ara(1 leads to 4)Xyl was chemically synthesized and conjugated to a carrier protein. Two interesting antibodies were obtaine ...
DOI:
10.1016/j.phytochem.2009.06.019
PubMed:
19712948

13. New ether-linked ferulic acid-coniferyl alcohol dimers identified in grass straws

Author:
Jacquet, G.; Pollet, B.; Lapierre, C.
Source:
Journal of agricultural and food chemistry 1995 v.43 no.10 pp. 2746-2751
ISSN:
0021-8561
Subject:
cell wall components; grasses; wheat straw; ethers; Triticum aestivum; rice straw; Avena sativa; esters; lignin; ferulic acid; chemical structure
Abstract:
... Grass cell walls are typified by ferulic esters linked to polysaccharides. In past research, these feruloylated esters have been repeatedly speculated to be cross-linking agents with lignins, via ether bonds. Whereas this hypothesis is strongly supported by degradative studies, model experiments, and NMR data, diagnostic fragments associating ferulic acid and lignin precursors, through an ether bo ...
DOI:
10.1021/jf00058a037

14. Occurrence and distribution of organophosphorus esters in soils and wheat plants in a plastic waste treatment area in China

Author:
Weining Wan; Shuzhen Zhang; Honglin Huang; Tong Wu
Source:
Environmental pollution 2016 v.214 pp. 349-353
ISSN:
0269-7491
Subject:
Triticum aestivum; agricultural land; esters; hydrophobicity; phosphates; soil; waste treatment; wheat; China
Abstract:
... This study for the first time reported the occurrence, distribution and concentrations of organophosphate esters (OPEs) in soils caused by plastic waste treatment, as well as their influence on OPE accumulation in wheat (Triticum aestivum L.). Eight OPEs were detected with the total concentrations of 38–1250 ng/g dry weight in the soils from the treatment sites, and tributoxyethyl phosphate and tr ...
DOI:
10.1016/j.envpol.2016.04.038

15. Phytotoxicity of Major Constituents of the Volatile Oil from Leaves of Artemisia scoparia Waldst. & Kit.

Author:
Harminder Pal Singh; Shalinder Kaur; Sunil Mittal; Daizy R. Batish; Ravinder K. Kohli
Source:
Zeitschrift für Naturforschung 2014 v.63 no.9-10 pp. 663-666
ISSN:
0939-5075
Subject:
Artemisia scoparia; Avena sativa; Triticum aestivum; alcohols; chlorophyll; dose response; essential oils; esters; germination; ketones; leaves; limonene; myrcene; oils; p-cymene; phytotoxicity; seedling growth; sesquiterpenoids; weeds
Abstract:
... The phytotoxicity of the three major monoterpene constituents of the essential oil from leaves of Artemisia scoparia Waldst. & Kit. (redstem wormwood) was investigated. GC/GCMS analysis revealed that the essential oil (yield 0.84%) is a complex mixture containing 19 monoterpenes, 7 sesquiterpenes and 15 other compounds - aliphatic alcohols, ketones, aromatic hydrocarbons and esters. The three majo ...
DOI:
10.1515/znc-2008-9-1009

16. Synthesis of low molecular weight flavor esters using plant seedling lipases in organic media

Author:
Liaquat, M.; Owusu Apenten, R.K.
Source:
Journal of food science 2000 v.65 no.2 pp. 295-299
ISSN:
0022-1147
Subject:
seed germination; acetic acid; Zea mays; hexanoic acid; Hordeum vulgare; Linum usitatissimum; seedlings; catalysts; triacylglycerol lipase; esterification; butyric acid; Triticum aestivum; Brassica napus; flavor compounds; molecular weight
Abstract:
... Powders from germinated seedlings of wheat, barley, rapeseed, maize, and linola synthesized low molecular weight flavor esters in an organic medium (hexane). Direct esterification of acetic, butyric, and caproic acids, with ethanol, butanol, isopentanol, or (Z)-3-hexen-1-ol was achieved. Of the systems examined, germinated rapeseed showed the highest degree of flavor synthesis. (Z)-3-hexen-1-yl bu ...
DOI:
10.1111/j.1365-2621.2000.tb15996.x

17. Thermochemical characterisation of straws and high yielding perennial grasses

Author:
C.E. Greenhalf; D.J. Nowakowski; A.V. Bridgwater; J. Titiloye; N. Yates; A. Riche; I. Shield
Source:
Industrial crops and products 2012 v.36 no.1 pp. 449-459
ISSN:
0926-6690
Subject:
Brassica napus; Panicum virgatum; Phalaris arundinacea; Triticum aestivum; acids; cellulose; cellulosic materials; crops; esters; grasses; hemicellulose; lignin; mass spectrometry; pyrolysis; wheat straw
Abstract:
... The research is concerned with thermochemical characterisation of straws and high yielding perennial grasses. Crops selected for this study include wheat straw (Triticum aestivum), rape straw (Brassica napus), reed canary grass (Phalaris arundinacea) and switch grass (Panicum virgatum). Thermogravimetric analysis (TGA) was used to examine the distribution of char and volatiles during pyrolysis up ...
DOI:
10.1016/j.indcrop.2011.10.025

18. Thiamin (vitamin B₁) and thiamin phosphate esters in five cereal grains during maturation

Author:
Martina Buchholz; Astrid M. Drotleff; Waldemar Ternes
Source:
Journal of cereal science 2012 v.56 no.1 pp. 109-114
ISSN:
0733-5210
Subject:
inflorescences; Triticosecale; flowering; wheat; high performance liquid chromatography; thiamin; barley; Hordeum vulgare; fluorescence; Triticum aestivum; esters; phosphates; seed development; Secale cereale; adenosine triphosphate; rye; oats; Avena sativa; triticale; whole grain foods
Abstract:
... Non-phosphorylated thiamin (T), thiamin monophosphate (TMP), and thiamin diphosphate (TDP) were extracted from whole grains of wheat (Triticum aestivum, cv. Dekan), triticale (Triticosecale, cv. SW Talentro), rye (Secale cereale, cv. Agronom), oats (Avena sativa, cv. Dominik), and barley (Hordeum vulgare, cv. Merlot) at different growth stages (from inflorescence emergence to full ripeness of the ...
DOI:
10.1016/j.jcs.2011.11.009

19. Uptake, Translocation, and Biotransformation of Organophosphorus Esters in Wheat (Triticum aestivum L.)

Author:
Wan Weining; Huang Honglin; Lv Jitao; Han Ruixia; Zhang Shuzhen
Source:
Environmental Science & Technology 2017 v.51 no.23 pp. 13649-13658
ISSN:
1520-5851
Subject:
Triticum aestivum; binding capacity; biotransformation; environmental science; enzymes; esters; hydrophobicity; hydroponics; hydroxylation; lipid transfer proteins; metabolites; molecular models; roots; wheat
Abstract:
... The uptake, translocation and biotransformation of organophosphate esters (OPEs) by wheat (Triticum aestivum L.) were investigated by a hydroponic experiment. The results demonstrated that OPEs with higher hydrophobicity were more easily taken up by roots, and OPEs with lower hydrophobicity were more liable to be translocated acropetally. A total of 43 metabolites including dealkylated, oxidativel ...
DOI:
10.1021/acs.est.7b01758

20. Wheat flag leaf epicuticular wax morphology and composition in response to moderate drought stress are revealed by SEM, FTIR‐ATR and synchrotron X‐ray spectroscopy

Author:
Ian R. Willick; Rachid Lahlali; Perumal Vijayan; David Muir; Chithra Karunakaran; Karen K. Tanino
Source:
Physiologia plantarum 2018 v.162 no.3 pp. 316-332
ISSN:
0031-9317
Subject:
Fourier transform infrared spectroscopy; Triticum aestivum; X-radiation; cultivars; drought; drought tolerance; epicuticular wax; esters; filling period; fluorescence emission spectroscopy; harvest index; leaves; reflectance spectroscopy; scanning electron microscopy; water content; water stress; water use efficiency; wheat; zinc; Canada
Abstract:
... Wheat (Triticum aestivum L.) is the largest cereal crop grown in Western Canada where drought during late vegetative and seed filling stages affects plant development and yield. To identify new physiochemical markers associated with drought tolerance, epidermal characteristics of the flag leaf of two wheat cultivars with contrasting drought tolerance were investigated. The drought resistant ‘Stett ...
DOI:
10.1111/ppl.12637

21. The environment behavior of organophosphate esters (OPEs) and di-esters in wheat (Triticum aestivum L.): Uptake mechanism, in vivo hydrolysis and subcellular distribution

Author:
Xinying Gong; Yu Wang; Jian Pu; Junjie Zhang; Hongwen Sun; Lei Wang
Source:
Environment international 2020 v.135 pp. 105405
ISSN:
0160-4120
Subject:
Triticum aestivum; absorption; aquaporins; cell walls; esters; facilitated diffusion; hydrolysis; hydrophilicity; hydrophobicity; hydroponics; metabolites; organophosphorus compounds; phosphates; roots; sap; shoots; transpiration; wheat
Abstract:
... To reveal the metabolic characteristic of organophosphate esters (OPEs) in plants, uptake efficiency, subcellular distribution and hydrolysis of OPEs and their hydrolysis metabolites in wheat (Triticum aestivum L.) were investigated by hydroponic experiments. Tris(2-chloroethyl) phosphate (TCEP) and bis(2-chloroethyl) phosphate (BCEP) were prone to transporting to shoots by transpiration stream, w ...
DOI:
10.1016/j.envint.2019.105405