scholarly journals Identification and Quantification of Coumarins by UHPLC-MS in Arabidopsis Thaliana Natural Populations

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1804
Author(s):  
Izabela Perkowska ◽  
Joanna Siwinska ◽  
Alexandre Olry ◽  
Jérémy Grosjean ◽  
Alain Hehn ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
High Performance ◽  
Biological Activities ◽  
Natural Populations ◽  
Biologically Active ◽  
Stress Factors ◽  
Mass Spectrometry Analysis ◽  
Engineering Research ◽  
Spectrometry Analysis ◽  
Model Plant Arabidopsis Thaliana

Coumarins are phytochemicals occurring in the plant kingdom, which biosynthesis is induced under various stress factors. They belong to the wide class of specialized metabolites well known for their beneficial properties. Due to their high and wide biological activities, coumarins are important not only for the survival of plants in changing environmental conditions, but are of great importance in the pharmaceutical industry and are an active source for drug development. The identification of coumarins from natural sources has been reported for different plant species including a model plant Arabidopsis thaliana. In our previous work, we demonstrated a presence of naturally occurring intraspecies variation in the concentrations of scopoletin and its glycoside, scopolin, the major coumarins accumulating in Arabidopsis roots. Here, we expanded this work by examining a larger group of 28 Arabidopsis natural populations (called accessions) and by extracting and analysing coumarins from two different types of tissues–roots and leaves. In the current work, by quantifying the coumarin content in plant extracts with ultra-high-performance liquid chromatography coupled with a mass spectrometry analysis (UHPLC-MS), we detected a significant natural variation in the content of simple coumarins like scopoletin, umbelliferone and esculetin together with their glycosides: scopolin, skimmin and esculin, respectively. Increasing our knowledge of coumarin accumulation in Arabidopsis natural populations, might be beneficial for the future discovery of physiological mechanisms of action of various alleles involved in their biosynthesis. A better understanding of biosynthetic pathways of biologically active compounds is the prerequisite step in undertaking a metabolic engineering research.

scholarly journals A Comparative Study of the Antioxidative Effects of Helichrysum italicum and Helichrysum arenarium Infusions

Antioxidants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 380
Author(s):  
Katja Kramberger ◽  
Zala Jenko Pražnikar ◽  
Alenka Baruca Arbeiter ◽  
Ana Petelin ◽  
Dunja Bandelj ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
High Performance ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Morphological Type ◽  
Mass Spectrometry Analysis ◽  
In Vitro Assays ◽  
Spectrometry Analysis ◽  
Stress Related Genes

Helichrysum arenarium (L.) Moench (abbrev. as HA) has a long tradition in European ethnomedicine and its inflorescences are approved as a herbal medicinal product. In the Mediterranean part of Europe, Helichrysum italicum (Roth) G. Don (abbrev. as HI) is more common. Since infusions from both plants are traditionally used, we aimed to compare their antioxidative potential using in vitro assays. Two morphologically distinct HI plants, HIa and HIb, were compared to a commercially available HA product. Genetic analysis using microsatellites confirmed a clear differentiation between HI and HA and suggested that HIb was a hybrid resulting from spontaneous hybridization from unknown HI subspecies. High-performance liquid chromatography–mass spectrometry analysis showed the highest amounts of hydroxycinnamic acids and total arzanol derivatives in HIa, whereas HIb was richest in monohydroxybenzoic acids, caffeic acids, and coumarins, and HA contained the highest amounts of flavonoids, especially flavanones. HIa exhibited the highest radical scavenging activity; it was more efficient in protecting different cell lines from induced oxidative stress and in inducing oxidative stress-related genes superoxide dismutase 1, catalase, and glutathione reductase 1. The antioxidative potential of HI was not only dependent on the morphological type of the plant but also on the harvest date, revealing important information for obtaining the best possible product. Considering the superior properties of HI compared to HA, the evaluation of HI as a medicinal plant could be recommended.

scholarly journals Development and method validation for determination of 54 pesticides in Okra by LC-MS/MS analysis

2020 ◽  
Vol 11 (1) ◽  
pp. 985-992
Author(s):  
Hymavati Muppalla ◽  
Kiranmayi Peddi
Keyword(s):  
European Union ◽  
Pesticide Residues ◽  
High Performance ◽  
Limit Of Detection ◽  
Extraction Procedure ◽  
Mass Spectrometry Analysis ◽  
Limit Of Quantification ◽  
Spectrometry Analysis ◽  
Tandem Mass Spectrometry Analysis

The presence of pesticide residues in primary and derived agricultural products raises serious health concerns for consumers across the globe. The aim of the present study was to assess the level of pesticide residues in Okra in India. A multi-residue method for the quantification of fifty-four pesticides in okra is described in this work. The present study employed a modified quick, easy cheap, effective rugged and safe (QuEChERS) extraction procedure followed by UHPLC-MS/MS (Ultra-High-Performance Liquid Chromatography coupled to Tandem Mass Spectrometry) analysis. Validation of the method was according to the guidelines given by European Union SANCO/12571/2013. The levels of validation were 10.0, 50.0 and 100 µg kg-1. The following parameters such as linearity, the limit of detection (LOD) (nearer to 0.005 mg kg-1) and limit of quantification (LOQ) (nearer to 0.01 mg kg-1) were set to be acceptable. The trueness of the method for 54 pesticides in all Okra commodities was between 80-110% with satisfactory repeatability and within-run reproducibility except for the pesticide residues such as Thiamethoxam and Fenamidone. The measurement of uncertainty for each of the pesticide was below 50% and was estimated to be in the range of 5.37% - 10.71%, which meets the criteria established in the SANCO/12571/2013 document (European Union, 2013). This method is concluded to be applicable for the determination of pesticide residues in Okra.

scholarly journals Identification of sulfenylated cysteines in Arabidopsis thaliana proteins using a disulfide-linked peptide reporter

2020 ◽  
Author(s):  
Bo Wei ◽  
Patrick Willems ◽  
Jingjing Huang ◽  
Caiping Tian ◽  
Jing Yang ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Protein Interactions ◽  
Affinity Purification ◽  
Mass Spectrometry Analysis ◽  
Technological Advancement ◽  
Amino Acid Residues ◽  
Cysteine Oxidation ◽  
Spectrometry Analysis ◽  
Mixed Disulfide ◽  
And Function

ABSTRACTIn proteins, hydrogen peroxide (H2O2) reacts with redox-sensitive cysteines to form cysteine sulfenic acid, also known as S-sulfenylation. These cysteine oxidation events can steer diverse cellular processes by altering protein interactions, trafficking, conformation, and function. Previously, we had identified S-sulfenylated proteins by using a tagged proteinaceous probe based on the yeast AP-1–like (Yap1) transcription factor that specifically reacts with sulfenic acids and traps them through a mixed disulfide bond. However, the identity of the S-sulfenylated amino acid residues remained enigmatic. Here, we present a technological advancement to identify in situ sulfenylated cysteines directly by means of the transgenic Yap1 probe. In Arabidopsis thaliana cells, after an initial affinity purification and a tryptic digestion, we further enriched the mixed disulfide-linked peptides with an antibody targeting the YAP1C-derived peptide (C598SEIWDR) that entails the redox-active cysteine. Subsequent mass spectrometry analysis with pLink 2 identified 1,745 YAP1C cross-linked peptides, indicating sulfenylated cysteines in over 1,000 proteins. Approximately 55% of these YAP1C-linked cysteines had previously been reported as redox-sensitive cysteines (S-sulfenylation, S-nitrosylation, and reversibly oxidized cysteines). The presented methodology provides a noninvasive approach to identify sulfenylated cysteines in any species that can be genetically modified.

Identification of Bioactive Phytocomponents of Hydroalcoholic Extract of Enhalus acoroides by Gas Chromatography- Mass Spectrometry Analysis

2021 ◽  
pp. 6511-6515
Author(s):  
S. Navaith Ahmed ◽  
P. Kalaivani ◽  
P. Amudha ◽  
B. Usharani
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Biological Activities ◽  
Marine Species ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Hydroalcoholic Extract ◽  
Spectrometry Analysis ◽  
Enhalus Acoroides ◽  
Chromatography Mass Spectrometry

Sea grass are good source of potent drug which has medicinal properties and able to cure human disease. One such marine plant is the Enhalus acoroides which belong to hydrocharitaeceae family. This marine species are widely distributed in the tropics of Indian and western Pacific Ocean and the species were collected from Ramanathapuram district for further process. This study reveals about the bioactive components present in Enhalus acoroides and identified its biological activity by Gas chromatography Mass spectrometry analysis using hydroalcoholic extract. The compounds present in Enhalus acoroides are Benzoic acid, 2- methyl 7- oxa bicyclol heptanes, 1, 3 Nonadiene, silane, ethoxytriethyl. Biological activities of the compounds present in the sample include antioxidant, hypocholesterolemic, antihypertensive, anti-inflammatory, anti-microbial, antiviral and anti-hepatotoxic effect.

scholarly journals GAS CHROMATOGRAPHY–MASS SPECTROMETRY ANALYSIS OF METHANOL EXTRACT OF ZANTHOXYLUM RHETSA DC. FRUITS

2018 ◽  
Vol 11 (12) ◽  
pp. 247
Author(s):  
Kuladip Gurav ◽  
Varsha Jadhav (rathod)
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Bioactive Compounds ◽  
Biological Activities ◽  
Acid Methyl Ester ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Hexadecanoic Acid ◽  
Spectrometry Analysis ◽  
Chromatography Mass Spectrometry

Objective: The aim was to investigate important bioactive compounds, biological activities, and medicinal importance of Zanthoxylum rhetsa fruits.Methods: The present work was carried out by gas chromatography–mass spectrometry (GC-MS) method for the identification of different compounds.Result: The methanolic extract of fruits showed 32 chemical compounds which are identified through GC-MS analysis. Among them, some of the compound names and percentage values are as follows: 2-propanone, 1,3-dihydroxy (48.9%), 4H-pyran-4-one,2,3-dihydro-3,5-dihydroxy-6-methyl (33.7%), 2-furancarboxaldehyde, 5-[hydroxymethyl] (50.2%), 1-Heptatriacontanol (34.4%), 9,12-octadecadienoic acid (zz)- (48.6%), cholestan- 3-ol,2-methylene, [3β,5α] (75.0%), 4H-pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl (90.8), 2-furancarboxaldehyde, 5-[hydroxymethyl] (92.0%), hydroquinone (64.9%), n-hexadecanoic acid (37.5%), octadecanoic acid (28.2%), 9,12,15, octadecatrienoic acid, 2-[(trimethylsiyl]oxy]-1- [(trimethylsiyl]oxy]methyl] ethyl ester, [zzz] (22.6%), 9-hexadecanoic acid (10.3%), digitoxin (18.8%), 8,11,14-eicosatrienoic acid methyl ester, [zzz] (25.5%), and oleic acid (16.5%). Most of the identified compounds in the crude methanolic extracts exhibit some bioactivities, namely anticancer, anti-inflammatory, antimicrobial, hepatoprotective, antioxidant, hypocholesterolemic, nematicide, pesticide, anti-androgenic flavor, hemolytic, 5-alpha-reductase inhibitor, insectifuge, antiarthritic, anti-coronary, cardiovascular, anti-breast cancer, aromatic, and insectifuge. On the basis of the above investigation, the fruits can be recommended as a treasure of bioactive compounds and it plays a promising role in herbal medicine.Conclusion: The present study reveals that fruits of Z. rhetsa contain various bioactive compounds. Digitoxin is recorded in the ripened fruit of Z. rhetsa and it shows the anticancerous and cardiac arrest properties. Hence, in future, this plant will play a promising role in curing cancer.

Sign in / Sign up

Export Citation Format

Share Document