scholarly journals PHENYLPROPANOIDS AND FATTY ACIDS LEVELS IN ROOTS AND LEAVES OF DATURA STRAMONIUM AND DATURA INNOXIA

2017 ◽  
Vol 9 (7) ◽  
pp. 150
Author(s):  
Bilal Rahmoune ◽  
Izzeddine Zakarya Zerrouk ◽  
Abdelkader Morsli ◽  
Madjda Khelifi Slaoui ◽  
Lakhdar Khelifi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Ferulic Acid ◽  
Caffeic Acid ◽  
Cinnamic Acid ◽  
Sinapic Acid ◽  
Datura Stramonium ◽  
Fatty Acids Composition ◽  
Datura Innoxia ◽  
Max Planck ◽  
Leaves And Roots

Objective: The aim of this research was to determine and compare phenylpropanoids and fatty acids composition in two plant species, Datura innoxia and Datura stramonium.Methods: Phenylpropanoids and fatty acids composition in leaves and roots extracted from Datura innoxia and Datura stramonium, grown under greenhouse conditions, was analyzed by gas chromatography–electron impact/time of flight-mass spectrometry (GC-EI/TOF-MS) chromatography techniques. Analyses were carried out at the Max Planck Institute for Molecular Plant Physiology of Golm (Germany).Results: We revealed that Datura stramonium (DS) contains hydroxy-hexanedioic acid while hexanoic acid was found in Datura innoxia (DI). Also, two fatty acids are common to both Datura species, hexadecanoic acid and octadecanoic acid, with an almost equal rate between leaves and roots. However, phenylpropanoids composition revealed eight compounds; luteolin, quercetin, trans-caffeic acid, trans-ferulic acid, cis-caffeic acid, cis-4-hydroxy-cinnamic acid, trans-4-hydroxy-cinnamic acid and trans-sinapic acid in DI. However, in DS, five compounds were detected: luteolin, quercetin, trans-caffeic acid, trans-ferulic acid and dihydroferulic acid. Also in both Datura species, phenylpropanoids concentration in leaves was significantly higher than in the roots.Conclusion: Our results showed a difference in phenylpropanoids and fatty acids compositions between the two Datura species, with a significantly higher concentration of phenylpropanoids in Datura innoxia than in Datura stramonium

METABOLISM OF PHENYLPROPANOID COMPOUNDS IN SALVIA: II. BIOSYNTHESIS OF PHENOLIC CINNAMIC ACIDS

1959 ◽  
Vol 37 (1) ◽  
pp. 537-547 ◽  
Author(s):  
D. R. McCalla ◽  
A. C. Neish
Keyword(s):  
Caffeic Acid ◽  
Phenolic Acids ◽  
Cinnamic Acid ◽  
Shikimic Acid ◽  
Sinapic Acid ◽  
Coumaric Acid ◽  
Cinnamic Acids ◽  
Phenyllactic Acid ◽  
Salvia Splendens ◽  
Specific Activities

p-Coumaric, caffeic, ferulic, and sinapic acids were found to occur in Salvia splendens Sello in alkali-labile compounds of unknown constitution. A number of C14-labelled compounds were administered to leafy cuttings of salvia and these phenolic acids were isolated after a metabolic period of several hours and their specific activities measured. Cinnamic acid, dihydrocinnamic acid, L-phenylalanine, and (−)-phenyllactic acid were found to be good precursors of the phenolic acids. D-Phenylalanine, L-tyrosine, and (+)-phenyllactic acid were poor precursors. A kinetic study of the formation of the phenolic acids from L-phenylalanine-C14 gave data consistent with the view that p-coumaric acid → caffeic acid → ferulic acid → sinapic acid, and that these compounds can act as intermediates in lignification. Feeding of C14-labelled members of this series showed that salvia could convert any one to a more complex member of the series but not so readily to a simpler member. Caffeic acid-β-C14 was obtained from salvia after the feeding of L-phenylalanine-β-C14 or cinnamic acid-β-C14, and caffeic acid labelled only in the ring was obtained after feeding generally labelled shikimic acid.

scholarly journals The effects of plant density and irrigation on phenolic content in cauliflower 

2017 ◽  
Vol 44 (No. 4) ◽  
pp. 178-185 ◽  
Author(s):  
Alina Kałużewicz ◽  
Jolanta Lisiecka ◽  
Monika Gąsecka ◽  
Włodzimierz Krzesiński ◽  
Tomasz Spiżewski ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Gallic Acid ◽  
Caffeic Acid ◽  
Phenolic Acids ◽  
Plant Density ◽  
Phenolic Content ◽  
Sinapic Acid ◽  
Dry Weight ◽  
Coumaric Acid

This study was conducted to study the influence of plant density and irrigation on the content of phenolic compounds, i.e., phenolic acids and flavonols in cv. ‘Sevilla’ cauliflower curds. Levels of phenolic acids and flavonols were in the range of 3.0–6.2 mg and 25.4–87.8 mg/100 g of dry weight, respectively, depending on plant density and irrigation. Of the phenolic acids, caffeic acid was detected in the highest amount, followed by p-coumaric acid, sinapic acid, gallic acid, and ferulic acid. Of the two flavonols detected, the levels of quercetin were higher than those of kaempferol. The content of the detected phenolic acids (with the exception of ferulic acid) and both flavonols increased with increasing plant density. Furthermore, the concentration of phenolic compounds (with the exception of ferulic acid) was significantly higher under irrigation.

Involvement of Phenolics, Flavonoids, and Phenolic Acids in High Yield Characteristics of Rice (Oryza Sativa L.)

2018 ◽  
Vol 68 ◽  
pp. 19-26 ◽  
Author(s):  
Tran Dang Xuan ◽  
Do Tuan Bach ◽  
Tran Dang Dat
Keyword(s):  
Ferulic Acid ◽  
Chlorogenic Acid ◽  
Caffeic Acid ◽  
Phenolic Acids ◽  
Sinapic Acid ◽  
Development Stage ◽  
Vegetative Stage ◽  
High Yield ◽  
Phenolic Contents ◽  
The Difference

The present study examined the correlation between phenolic acids and flavonoids with high rice yield traits of rice. It was observed that the difference of phenolic contents among the tested rice lines occurred only in the vegetative stage. The concentrations of phenolic acids were higher in the rice high yield cultivars than low yield variety in the vegetative stage, but they either decreased dramatically or disappeared during the development stage. Caffeic acid was found only in high yield rice, whereas chlorogenic acid was detected only in low yield rice. Sinapic acid was the dominant phenolic acid in high yield cultivars at vegetative stage (3.7 mg/g), followed by ferulic acid (1.2 mg/g). These findings suggest that caffeic acid, ferulic acid, sinapic acid and chlorogenic acid may play a particular role in forming yield components in rice. The cultivar B3 contained high amount of sinapic acid may be used as a natural source for pharmaceutical use.

scholarly journals Role of Salicylic Acid and Components of the Phenylpropanoid Pathway in Basal and Cultivar-Related Resistance of Oilseed Rape (Brassica napus) to Verticillium longisporum

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 491 ◽  
Author(s):  
Xiaorong Zheng ◽  
Birger Koopmann ◽  
Andreas von Tiedemann
Keyword(s):  
Salicylic Acid ◽  
Brassica Napus ◽  
Ferulic Acid ◽  
Cinnamic Acid ◽  
Sinapic Acid ◽  
Coumaric Acid ◽  
Basal Resistance ◽  
Remarkable Increase ◽  
Verticillium Longisporum

Enhanced resistance is a key strategy of controlling ‘Verticillium stem striping’ in Brassica napus caused by the soil-borne vascular pathogen Verticillium longisporum. The present study analyses the role of a broad range of components in the phenylpropanoid and salicylic acid (SA) pathways in basal and cultivar-related resistance of B. napus towards V. longisporum. A remarkable increase of susceptibility to V. longisporum in SA-deficient transgenic NahG plants indicated an essential role of SA in basal resistance of B. napus to V. longisporum. Accordingly, elevated SA levels were also found in a resistant and not in a susceptible cultivar during early asymptomatic stages of infection (7 dpi), which was associated with increased expression of PR1 and PR2. In later symptomatic stages (14 or 21 dpi), SA responses did not differ anymore between cultivars varying in resistance. In parallel, starting at 7 dpi, an overall increase in phenylpropanoid syntheses developed in the resistant cultivar, including the activity of some key enzymes, phenylalanine ammonium lyase (PAL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POX) and the expression of key genes, PAL4, CCoAMT, CCR, POX. As a consequence, a remarkable increase in the levels of phenolic acids (t-cinnamic acid, p-coumaric acid, caffeic acid, ferulic acid, sinapic acid) occurred associated with cultivar resistance. A principal component analysis including all 27 traits studied indicated that component 1 related to SA synthesis (PR1, PR2, POX, level of free SA) and component 2 related to lignin synthesis (level of free ferulic acid, free p-coumaric acid, conjugated t-cinnamic acid) were the strongest factors to determine cultivar-related resistance. This study provides evidence that both SA and phenolic acid synthesis are important in cultivar-related resistance, however, with differential roles during asymptomatic and symptomatic stages of infection.

METABOLISM OF PHENYLPROPANOID COMPOUNDS IN SALVIA: II. BIOSYNTHESIS OF PHENOLIC CINNAMIC ACIDS

1959 ◽  
Vol 37 (4) ◽  
pp. 537-547 ◽  
Author(s):  
D. R. McCalla ◽  
A. C. Neish
Keyword(s):  
Caffeic Acid ◽  
Phenolic Acids ◽  
Cinnamic Acid ◽  
Shikimic Acid ◽  
Sinapic Acid ◽  
Coumaric Acid ◽  
Cinnamic Acids ◽  
Phenyllactic Acid ◽  
Salvia Splendens ◽  
Specific Activities

p-Coumaric, caffeic, ferulic, and sinapic acids were found to occur in Salvia splendens Sello in alkali-labile compounds of unknown constitution. A number of C14-labelled compounds were administered to leafy cuttings of salvia and these phenolic acids were isolated after a metabolic period of several hours and their specific activities measured. Cinnamic acid, dihydrocinnamic acid, L-phenylalanine, and (−)-phenyllactic acid were found to be good precursors of the phenolic acids. D-Phenylalanine, L-tyrosine, and (+)-phenyllactic acid were poor precursors. A kinetic study of the formation of the phenolic acids from L-phenylalanine-C14 gave data consistent with the view that p-coumaric acid → caffeic acid → ferulic acid → sinapic acid, and that these compounds can act as intermediates in lignification. Feeding of C14-labelled members of this series showed that salvia could convert any one to a more complex member of the series but not so readily to a simpler member. Caffeic acid-β-C14 was obtained from salvia after the feeding of L-phenylalanine-β-C14 or cinnamic acid-β-C14, and caffeic acid labelled only in the ring was obtained after feeding generally labelled shikimic acid.

scholarly journals Taxonomic study of some species of the subfamily Dipsacoideae Eaton (Caprifoliaceae) by phenolic acid profiles

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Mostafa Ebadi ◽  
Rosa Eftekharian ◽  
Sedighe Nikzat ◽  
Saeed Mollaei
Keyword(s):  
Ferulic Acid ◽  
Caffeic Acid ◽  
Cinnamic Acid ◽  
Principal Components ◽  
Phenolic Acid ◽  
High Performance ◽  
Distinct Group ◽  
Coumaric Acid ◽  
Photodiode Array Detection ◽  
Phenolic Contents

Dipsacoideae has always been problematic for taxonomic delimitation of the taxa because of their morphological similarities and diversity amongst the taxa. Phenolic compounds are found in various organs of plants and are important in terms of chemotaxonomy and pharmacognosy. In this study, the phenolic acid compounds of 12 species of Dipsacoideae were analyzed using high-performance liquid chromatography photodiode array detection (HPLC-PDA) and also evaluated their significances as chemotaxonomic markers. The main phenolic acids were found to be caffeic acid, p-coumaric acid, ferulic acid and salicylic acid. The principal components analysis (PCA) bi-plot indicated that ferulic acid, caffeic acid, cinnamic acid, p-coumaric acid and rosmaric acid were principal components in the studied species dispersion. The species were separated from each other in a principal coordinate analysis (PCoA) plot in terms of their phenolic acid profile. Regarding the results, the high amount of caffeic acid and cinnamic acid could be considered a chemotaxonomic marker for genus Pterocephalus Vaill. and Cephalaria Schrad. respectively. The results indicated that Scabiosa koelzii Rech. and S. amoena Jacq. were placed as a distinct group regarding their phenolic acid profile and established the opinion supported by Greuter and Raus. Consequently, phenolic contents could be applied as a significant marker in the chemotaxonomy of Dipsacoideae. Considering it, we suggest the study of interaction among ecological and genetically factors as well as the studied chemical compounds.

scholarly journals Hydroxylation and Glycosylation of Phenylpropanoids by Cultured Cells of Phytolacca Americana

2016 ◽  
Vol 11 (2) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Kei Shimoda ◽  
Naoji Kubota ◽  
Daisuke Uesugi ◽  
Masato Tanigawa ◽  
Hiroki Hamada
Keyword(s):  
Ferulic Acid ◽  
Caffeic Acid ◽  
Cinnamic Acid ◽  
Cultured Cells ◽  
Plant Cells ◽  
Coumaric Acid ◽  
Phytolacca Americana ◽  
Regioselective Hydroxylation

Hydroxylation and glycosylation of cinnamic acid, p-coumaric acid, caffeic acid, and ferulic acid were investigated using cultured plant cells of Phytolacca americana as biocatalysts. Regioselective hydroxylation at the 4-position of cinnamic acid and 3-position of p-coumaric acid was observed. Although cinnamic acid was transformed to mono-glucoside products, di-glycosylation occurred in the case of the biotransformation of p-coumaric acid, caffeic acid, and ferulic acid.

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