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Long ZG, Le JV, Katz BB, Lopez BG, Tenenbaum ED, Semmling B, Schmidt RJ, Grün F, Butts CT, Martin RW. Spatially resolved detection of small molecules from press-dried plant tissue using MALDI imaging. APPLICATIONS IN PLANT SCIENCES 2023; 11:e11539. [PMID: 37915436 PMCID: PMC10617318 DOI: 10.1002/aps3.11539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 11/03/2023]
Abstract
Premise Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) is a chemical imaging method that can visualize spatial distributions of particular molecules. Plant tissue imaging has so far mostly used cryosectioning, which can be impractical for the preparation of large-area imaging samples, such as full flower petals. Imaging unsectioned plant tissue presents its own difficulties in extracting metabolites to the surface due to the waxy cuticle. Methods We address this by using established delipidation techniques combined with a solvent vapor extraction prior to applying the matrix with many low-concentration sprays. Results Using this procedure, we imaged tissue from three different plant species (two flowers and one carnivorous plant leaf). Material factorization analysis of the resulting data reveals a wide range of plant-specific small molecules with varying degrees of localization to specific portions of the tissue samples, while facilitating detection and removal of signal from background sources. Conclusions This work demonstrates applicability of MALDI-MSI to press-dried plant samples without freezing or cryosectioning, setting the stage for spatially resolved molecule identification. Increased mass resolution and inclusion of tandem mass spectrometry are necessary next steps to allow more specific and reliable compound identification.
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Affiliation(s)
- Zane G. Long
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Jonathan V. Le
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia92697‐3900USA
| | - Benjamin B. Katz
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Belen G. Lopez
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | | | - Bonnie Semmling
- The Chrysler Herbarium and Mycological Collection, School of Environmental and Biological SciencesRutgers UniversityNew BrunswickNew Jersey08901USA
| | - Ryan J. Schmidt
- Department of Ecology, Evolution, and Natural ResourcesRutgers UniversityNew BrunswickNew Jersey08901USA
| | - Felix Grün
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Carter T. Butts
- Departments of Sociology, Statistics, Computer Science, and Electrical Engineering and Computer ScienceUniversity of CaliforniaIrvineCalifornia92697USA
| | - Rachel W. Martin
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia92697‐3900USA
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2
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Wu L, Qi K, Liu C, Hu Y, Xu M, Pan Y. Enhanced Coverage and Sensitivity of Imprint DESI Mass Spectrometry Imaging for Plant Leaf Metabolites by Post-photoionization. Anal Chem 2022; 94:15108-15116. [PMID: 36201321 DOI: 10.1021/acs.analchem.2c03329] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Plant metabolites exhibit a variety of different chemical properties, physiological activities, and biological functions. However, untargeted imaging of highly diverse metabolic profiles is still a great challenge. Here, metabolites in plant leaves were imaged via imprint, followed by desorption electrospray ionization/post-photoionization (imprint DESI/PI) mass spectrometry imaging. In contrast to the traditional imprint DESI method, quite a few metabolites, such as terpenoids, flavonoids, glycosides, alkylphenols, amino acids, phenolic acids, tannins, and lipids, in fresh sage leaves, ginkgo leaves, and tea leaves were well detected and imaged by imprint DESI/PI. More than 80 metabolites were additionally identified, and more than 1 order of magnitude higher signal intensities were obtained for most metabolites in the negative ion mode. By virtue of the significant improvement of coverage and sensitivity of PI, the catechin biosynthesis network in fresh tea leaves could be clearly illustrated, indicating the potential applicability of imprint DESI/PI in exploring the sites and pathways of plant metabolic conversion.
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Affiliation(s)
- Liutian Wu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Keke Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Chengyuan Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yonghua Hu
- Center of Technology, China Tobacco Anhui Industrial Co, Ltd., Hefei 230088, Anhui, P. R. China
| | - Minggao Xu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
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3
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Ajith A, Milnes PJ, Johnson GN, Lockyer NP. Mass Spectrometry Imaging for Spatial Chemical Profiling of Vegetative Parts of Plants. PLANTS 2022; 11:plants11091234. [PMID: 35567235 PMCID: PMC9102225 DOI: 10.3390/plants11091234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 11/23/2022]
Abstract
The detection of chemical species and understanding their respective localisations in tissues have important implications in plant science. The conventional methods for imaging spatial localisation of chemical species are often restricted by the number of species that can be identified and is mostly done in a targeted manner. Mass spectrometry imaging combines the ability of traditional mass spectrometry to detect numerous chemical species in a sample with their spatial localisation information by analysing the specimen in a 2D manner. This article details the popular mass spectrometry imaging methodologies which are widely pursued along with their respective sample preparation and the data analysis methods that are commonly used. We also review the advancements through the years in the usage of the technique for the spatial profiling of endogenous metabolites, detection of xenobiotic agrochemicals and disease detection in plants. As an actively pursued area of research, we also address the hurdles in the analysis of plant tissues, the future scopes and an integrated approach to analyse samples combining different mass spectrometry imaging methods to obtain the most information from a sample of interest.
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Affiliation(s)
- Akhila Ajith
- Department of Chemistry, Photon Science Institute, University of Manchester, Manchester M13 9PL, UK;
| | - Phillip J. Milnes
- Syngenta, Jeolott’s Hill International Research Centre, Bracknell RG42 6EY, UK;
| | - Giles N. Johnson
- Department of Earth and Environmental Sciences, University of Manchester, Manchester M13 9PY, UK;
| | - Nicholas P. Lockyer
- Department of Chemistry, Photon Science Institute, University of Manchester, Manchester M13 9PL, UK;
- Correspondence:
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4
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Hertel Pereira AC, Auer AC, Biedel L, de Almeida CM, Romão W, Endringer DC. Analysis of Gliricidia sepium Leaves by MALDI Mass Spectrometry Imaging. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:573-583. [PMID: 35157449 DOI: 10.1021/jasms.1c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
When investigating the potential use of plants as a raw material for an all-natural cosmetic formulation, the main parameters are the chemical composition, antioxidant potential, antimicrobial action, and toxicity. Additionally, the production of natural cosmetics should also consider the availability of primary materials and the environmental and socioeconomic impact. Gliricidia sepium is a species that produces a large amount of plant material, being cultivated in the agroforestry system. However, studies of phytochemical composition and chemical spatial distribution are scarcely using the MALDI MS (matrix-assisted laser desorption ionization mass spectrometry) and MALDI MSI (mass spectrometry imaging) techniques. A methodology was developed to optimize ionization parameters and analysis conditions by evaluating the efficiency of three matrices: α-cyano-4-hydroxycinnamic acid, 2,5-dihydroxybenzoic acid (DHB), and 2-mercaptobenzothiazole in MALDI MS analysis. All results were compared to ESI MS (electrospray ionization mass spectrometry), and afterward, MALDI MSI analysis was performed on the leaf surface. This study showed through phytochemical analysis that G. sepium leaves are composed of polyphenols and tannins, concluding that the methanolic extract had a higher amount of flavonoid content. Four compounds were identified on the leaf surface, and their spatial distribution was analyzed by MALDI MS using DHB as a matrix. Kaempferol, isorhamnetin, and some fatty acids showed potential applicability for cosmetical use. All the extracts presented antioxidant activity or antimicrobial action and no cytotoxicity. Therefore, extracts of G. sepium could be used as raw materials in cosmetics.
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Affiliation(s)
- Ana Claudia Hertel Pereira
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Avenida Comissário José Dantas de Melo, 21 - Boa Vista II, Vila Velha - ES 29102-920, Brazil
| | - Ana Carolina Auer
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Avenida Comissário José Dantas de Melo, 21 - Boa Vista II, Vila Velha - ES 29102-920, Brazil
| | - Lauro Biedel
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Avenida Comissário José Dantas de Melo, 21 - Boa Vista II, Vila Velha - ES 29102-920, Brazil
| | - Camila Medeiros de Almeida
- Chemistry Graduate Program, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514 - Goiabeiras, Vitória - ES 29075-910, Brazil
| | - Wanderson Romão
- Chemistry Graduate Program, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514 - Goiabeiras, Vitória - ES 29075-910, Brazil
| | - Denise Coutinho Endringer
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Avenida Comissário José Dantas de Melo, 21 - Boa Vista II, Vila Velha - ES 29102-920, Brazil
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5
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Jiang H, Zhang Y, Liu Z, Wang X, He J, Jin H. Advanced applications of mass spectrometry imaging technology in quality control and safety assessments of traditional Chinese medicines. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114760. [PMID: 34678417 PMCID: PMC9715987 DOI: 10.1016/j.jep.2021.114760] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/05/2021] [Accepted: 10/18/2021] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicines (TCMs) have made great contributions to the prevention and treatment of human diseases in China, and especially in cases of COVID-19. However, due to quality problems, the lack of standards, and the diversity of dosage forms, adverse reactions to TCMs often occur. Moreover, the composition of TCMs makes them extremely challenging to extract and isolate, complicating studies of toxicity mechanisms. AIM OF THE REVIEW The aim of this paper is therefore to summarize the advanced applications of mass spectrometry imaging (MSI) technology in the quality control, safety evaluations, and determination of toxicity mechanisms of TCMs. MATERIALS AND METHODS Relevant studies from the literature have been collected from scientific databases, such as "PubMed", "Scifinder", "Elsevier", "Google Scholar" using the keywords "MSI", "traditional Chinese medicines", "quality control", "metabolomics", and "mechanism". RESULTS MSI is a new analytical imaging technology that can detect and image the metabolic changes of multiple components of TCMs in plants and animals in a high throughput manner. Compared to other chemical analysis methods, such as liquid chromatography-mass spectrometry (LC-MS), this method does not require the complex extraction and separation of TCMs, and is fast, has high sensitivity, is label-free, and can be performed in high-throughput. Combined with chemometrics methods, MSI can be quickly and easily used for quality screening of TCMs. In addition, this technology can be used to further focus on potential biomarkers and explore the therapeutic/toxic mechanisms of TCMs. CONCLUSIONS As a new type of analysis method, MSI has unique advantages to metabolic analysis, quality control, and mechanisms of action explorations of TCMs, and contributes to the establishment of quality standards to explore the safety and toxicology of TCMs.
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Affiliation(s)
- Haiyan Jiang
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Yaxin Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Zhigang Liu
- School of Biological Science and Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Xiangyi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jiuming He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; NMPA Key Laboratory for Safety Research and Evaluation of Innovative Drug, Beijing 100050, China.
| | - Hongtao Jin
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Beijing Union-Genius Pharmaceutical Technology Development Co., Ltd., Beijing 100176, China; NMPA Key Laboratory for Safety Research and Evaluation of Innovative Drug, Beijing 100050, China.
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Hieta JP, Sipari N, Räikkönen H, Keinänen M, Kostiainen R. Mass Spectrometry Imaging of Arabidopsis thaliana Leaves at the Single-Cell Level by Infrared Laser Ablation Atmospheric Pressure Photoionization (LAAPPI). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2895-2903. [PMID: 34738804 PMCID: PMC8640987 DOI: 10.1021/jasms.1c00295] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In this study, we show that infrared laser ablation atmospheric pressure photoionization mass spectrometry (LAAPPI-MS) imaging with 70 μm lateral resolution allows for the analysis of Arabidopsis thaliana (A. thaliana) leaf substructures ranging from single-cell trichomes and the interveinal leaf lamina to primary, secondary, and tertiary veins. The method also showed its potential for depth profiling analysis for the first time by mapping analytes at the different depths of the leaf and spatially resolving the topmost trichomes and cuticular wax layer from the underlying tissues. Negative ion LAAPPI-MS detected many different flavonol glycosides, fatty acids, fatty acid esters, galactolipids, and glycosphingolipids, whose distributions varied significantly between the different substructures of A. thaliana leaves. The results show that LAAPPI-MS provides a highly promising new tool to study the role of metabolites in plants.
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Affiliation(s)
- Juha-Pekka Hieta
- Drug
Research Program and Division of Pharmaceutical Chemistry and Technology,
Faculty of Pharmacy, University of Helsinki, P.O. Box 56, Helsinki 00014, Finland
| | - Nina Sipari
- Viikki
Metabolomics Unit, Faculty of Biological and Environmental Sciences, University of Helsinki, P.O. Box 56, Helsinki 00014, Finland
| | - Heikki Räikkönen
- Drug
Research Program and Division of Pharmaceutical Chemistry and Technology,
Faculty of Pharmacy, University of Helsinki, P.O. Box 56, Helsinki 00014, Finland
| | - Markku Keinänen
- Department
of Environmental and Biological Sciences, Institute of Photonics,
Faculty of Science and Forestry, University
of Eastern Finland, P.O. Box 111, Joensuu 80101, Finland
| | - Risto Kostiainen
- Drug
Research Program and Division of Pharmaceutical Chemistry and Technology,
Faculty of Pharmacy, University of Helsinki, P.O. Box 56, Helsinki 00014, Finland
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7
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Patel MK, Pandey S, Kumar M, Haque MI, Pal S, Yadav NS. Plants Metabolome Study: Emerging Tools and Techniques. PLANTS (BASEL, SWITZERLAND) 2021; 10:2409. [PMID: 34834772 PMCID: PMC8621461 DOI: 10.3390/plants10112409] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 05/06/2023]
Abstract
Metabolomics is now considered a wide-ranging, sensitive and practical approach to acquire useful information on the composition of a metabolite pool present in any organism, including plants. Investigating metabolomic regulation in plants is essential to understand their adaptation, acclimation and defense responses to environmental stresses through the production of numerous metabolites. Moreover, metabolomics can be easily applied for the phenotyping of plants; and thus, it has great potential to be used in genome editing programs to develop superior next-generation crops. This review describes the recent analytical tools and techniques available to study plants metabolome, along with their significance of sample preparation using targeted and non-targeted methods. Advanced analytical tools, like gas chromatography-mass spectrometry (GC-MS), liquid chromatography mass-spectroscopy (LC-MS), capillary electrophoresis-mass spectrometry (CE-MS), fourier transform ion cyclotron resonance-mass spectrometry (FTICR-MS) matrix-assisted laser desorption/ionization (MALDI), ion mobility spectrometry (IMS) and nuclear magnetic resonance (NMR) have speed up precise metabolic profiling in plants. Further, we provide a complete overview of bioinformatics tools and plant metabolome database that can be utilized to advance our knowledge to plant biology.
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Affiliation(s)
- Manish Kumar Patel
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Rishon LeZion 7505101, Israel
| | - Sonika Pandey
- Independent Researcher, Civil Line, Fathepur 212601, India;
| | - Manoj Kumar
- Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Rishon LeZion 7505101, Israel;
| | - Md Intesaful Haque
- Fruit Tree Science Department, Newe Ya’ar Research Center, Agriculture Research Organization, Volcani Center, Ramat Yishay 3009500, Israel;
| | - Sikander Pal
- Plant Physiology Laboratory, Department of Botany, University of Jammu, Jammu 180006, India;
| | - Narendra Singh Yadav
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada
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8
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Amari NO, Missoun F, Chaimbault P, Berkani A. [Profiling by LC-MS and LC-MS / MS with Electrospray source (ESI) of extracts from three organs of Thymelaea hirsuta L.]. ANNALES PHARMACEUTIQUES FRANÇAISES 2021; 80:554-569. [PMID: 34742918 DOI: 10.1016/j.pharma.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/12/2021] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Nesrine Ouda Amari
- Laboratoire de Phytothérapie Api Pharmacognosie, Université Abdelhamid Ibn Badis de Mostaganem, Algérie
| | - Fatiha Missoun
- Laboratoire de Phytothérapie Api Pharmacognosie, Université Abdelhamid Ibn Badis de Mostaganem, Algérie.
| | - Patrick Chaimbault
- Laboratoire de Chimie et Physique - Approche Multiéchelle des Milieux Complexes (LCP-A2MC, Université de Lorraine-site de Metz)
| | - Abdellah Berkani
- Laboratoire de Chimie et Physique - Approche Multiéchelle des Milieux Complexes (LCP-A2MC, Université de Lorraine-site de Metz)
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9
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Pérez-López AV, Simpson J, Clench MR, Gomez-Vargas AD, Ordaz-Ortiz JJ. Localization and Composition of Fructans in Stem and Rhizome of Agave tequilana Weber var. azul. FRONTIERS IN PLANT SCIENCE 2021; 11:608850. [PMID: 33552101 PMCID: PMC7855178 DOI: 10.3389/fpls.2020.608850] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/28/2020] [Indexed: 05/03/2023]
Abstract
Methodology combining mass spectrometry imaging (MSI) with ion mobility separation (IMS) has emerged as a biological imaging technique due to its versatility, sensitivity and label-free approach. This technique has been shown to separate isomeric compounds such as lipids, amino acids, carboxylic acids and carbohydrates. This report describes mass spectrometry imaging in combination with traveling-wave ion mobility separation and matrix-assisted laser desorption/ionization (MALDI). Positive ionization mode was used to locate fructans on tissue printed sections of Agave rhizome and stem tissue and distinguished fructan isoforms. Here we show the location of fructans ranging from DP3 to DP17 to be differentially abundant across the stem tissue and for the first time, experimental collision cross sections of endogenous fructan structures have been collected, revealing at least two isoforms for fructans of DP4, DP5, DP6, DP7, DP8, DP10, and DP11. This demonstrates that complex fructans such as agavins can be located and their isoforms resolved using a combination of MALDI, IMS, and MSI, without the need for extraction or derivatization. Use of this methodology uncovered patterns of fructan localization consistent with functional differences where higher DP fructans are found toward the central section of the stem supporting a role in long term carbohydrate storage whereas lower DP fructans are concentrated in the highly vascularized central core of rhizomes supporting a role in mobilization of carbohydrates from the mother plant to developing offsets. Tissue specific patterns of expression of genes encoding enzymes involved in fructan metabolism are consistent with fructan structures and localization.
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Affiliation(s)
| | - June Simpson
- Department of Genetic Engineering, CINVESTAV Unidad Irapuato, Irapuato, Mexico
| | - Malcolm R. Clench
- Centre for Mass Spectrometry Imaging, Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, United Kingdom
| | | | - José J. Ordaz-Ortiz
- Metabolomics and Mass Spectrometry Laboratory, National Laboratory of Genomics for Biodiversity, Unidad de Genómica Avanzada (CINVESTAV), Irapuato, Mexico
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10
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Quaresma DMO, Justino AB, Sousa RMF, Munoz RAA, de Aquino FJT, Martins MM, Goulart LR, Pivatto M, Espindola FS, de Oliveira A. Antioxidant compounds from Banisteriopsis argyrophylla leaves as α-amylase, α-glucosidase, lipase, and glycation inhibitors. Bioorg Chem 2020; 105:104335. [PMID: 33074116 DOI: 10.1016/j.bioorg.2020.104335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/27/2020] [Accepted: 09/29/2020] [Indexed: 01/16/2023]
Abstract
Banisteriopsis argyrophylla belongs to the Malpighiaceae family, which is a species from Cerrado, also known as "cipó-prata" or "cipó-folha-de-prata." Several species of this family present biological potential. This work reports the chemical identification of the ethanol extract (EE) and its fractions from B. argyrophylla leaves and shows the analysis of the antioxidant activity and inhibitory effects on activities of α-amylase, α-glucosidase and lipase, and non-enzymatic glycation. The ethyl acetate fraction (EAF) and n-butanol fraction (BF) showed antioxidant activity, with IC50 values of 4.1 ± 0.1 and 4.8 ± 0.1 μg mL-1, respectively, by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, and IC50 values of 6046.3 ± 174.2 and 6264.2 ± 32.2 µmol Trolox eq g-1 by the oxygen radical absorbance capacity (ORAC) method. Furthermore, the DPPH method with these fractions presented electroactive species with antioxidant potential, as shown by the differential pulse voltammetry (DPV) method. The inhibitory effects of the EAF and BF were demonstrated by the following results: IC50 of 5.1 ± 0.3 and 2.5 ± 0.2 μg mL-1 for α-amylase, IC50 of 1093.5 ± 26.0 and 1250.8 ± 21.9 μg mL-1 for α-glucosidase, IC50 of 8.3 ± 4.1 and 4.4 ± 1.0 μg mL-1 for lipase, and IC50 of 1.3 ± 0.1 and 0.9 ± 0.1 μg mL-1 for glycation. Some bioactive compounds were identified by (-)-ESI-MS/MS, such as catechin, procyanidins, glycosylated flavonoids, kaempferol, and megastigmane glucosides. The antidiabetic activity of B.argyrophylla has been reported for the first time.
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Affiliation(s)
- Daiane M O Quaresma
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Allisson B Justino
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Raquel M F Sousa
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Rodrigo A A Munoz
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Francisco J T de Aquino
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Mário M Martins
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Luiz R Goulart
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Marcos Pivatto
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil
| | - Foued S Espindola
- Institute of Biotechnology, Federal University of Uberlândia, Av. Pará, 1720. Campus Umuarama, Uberlândia-MG, CEP 38400-902, Brazil
| | - Alberto de Oliveira
- Institute of Chemistry, Federal University of Uberlândia, Av. João Naves de Ávila, 2121. Campus Santa Mônica, Uberlândia-MG, CEP 38400-902, Brazil.
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11
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Liao Y, Fu X, Zeng L, Yang Z. Strategies for studying in vivo biochemical formation pathways and multilevel distributions of quality or function-related specialized metabolites in tea (Camellia sinensis). Crit Rev Food Sci Nutr 2020; 62:429-442. [DOI: 10.1080/10408398.2020.1819195] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yinyin Liao
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiumin Fu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Lanting Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
| | - Ziyin Yang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
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12
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Samarah LZ, Vertes A. Mass spectrometry imaging based on laser desorption ionization from inorganic and nanophotonic platforms. VIEW 2020. [DOI: 10.1002/viw.20200063] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Laith Z. Samarah
- Department of Chemistry George Washington University Washington DC USA
| | - Akos Vertes
- Department of Chemistry George Washington University Washington DC USA
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13
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Abstract
Mass spectrometry (MS) is an ideal tool for analyzing multiple types of (bio)molecular information simultaneously in complex biological systems. In addition, MS provides structural information on targets, and can easily discriminate between true analytes and background. Therefore, imaging mass spectrometry (IMS) enables not only visualization of tissues to give positional information on targets but also allows for molecular analysis of targets by affording the molecular weights. Matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) MS is particularly effective and is generally used for IMS. However, the requirement for an organic matrix raises several limitations that get in the way of accurate and reliable images and hampers imaging of small molecules such as drugs and their metabolites. To overcome these problems, various organic matrix-free LDI IMS systems have been developed, mostly utilizing nanostructured surfaces and inorganic nanoparticles as an alternative to the organic matrix. This minireview highlights and focuses on the progress in organic matrix-free LDI IMS and briefly discusses the use of other IMS techniques such as desorption electrospray ionization, laser ablation electrospray ionization, and secondary ion mass spectrometry.
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Affiliation(s)
- Eunjin Kim
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 05029, Korea
| | - Jisu Kim
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 05029, Korea
| | - Inseong Choi
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 05029, Korea
| | - Jeongwook Lee
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 05029, Korea
| | - Woon-Seok Yeo
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 05029, Korea
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Yeung ES. Autobiography of an Analytical Chemist. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2020; 13:1-16. [PMID: 31904991 DOI: 10.1146/annurev-anchem-090519-111018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Most of my research directions were opportunistic. Having worked with lasers in the early stages of laser applications in analytical chemistry, attending conferences, workshops, and administrative meetings that were not exactly aligned with our own research, locating to a building or in a department that housed scientists with different backgrounds, having certain specialized equipment at the right time, and having funding agencies that were broad-minded clearly contributed to my ventures into diverse fields. Most of all, it had to be the many eager minds that I have had the fortune to work with. I have always tried to suggest research topics that might be interesting to the individual coworker rather than something straight out of my own research proposals. Only then did each person actually own the project rather than consider it a chore. After all, we work in the field of analytical chemistry, in which almost anything we do can fit in.
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Affiliation(s)
- Edward S Yeung
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA;
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Yukihiro Y, Zaima N. Application of Mass Spectrometry Imaging for Visualizing Food Components. Foods 2020; 9:foods9050575. [PMID: 32375379 PMCID: PMC7278736 DOI: 10.3390/foods9050575] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/15/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Consuming food is essential for survival, maintaining health, and triggering positive emotions like pleasure. One of the factors that drive us toward such behavior is the presence of various compounds in foods. There are many methods to analyze these molecules in foods; however, it is difficult to analyze the spatial distribution of these compounds using conventional techniques, such as mass spectrometry combined with high-performance liquid chromatography or gas chromatography. Mass spectrometry imaging (MSI) is a two-dimensional ionization technology that enables detection of compounds in tissue sections without extraction, purification, separation, or labeling. There are many methods for ionization of analytes, including secondary ion mass spectrometry, matrix-assisted laser desorption/ionization, and desorption electrospray ionization. Such MSI technologies can provide spatial information on the location of a specific analyte in food. The number of studies utilizing MSI technologies in food science has been increasing in the past decade. This review provides an overview of some of the recent applications of MSI in food science and related fields. In the future, MSI will become one of the most promising technologies for visualizing the distribution of food components and for identifying food-related factors by their molecular weights to improve quality, quality assurance, food safety, nutritional analysis, and to locate administered food factors.
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Affiliation(s)
- Yoshimura Yukihiro
- Department of Nutrition, Kobe Gakuin University, 518 Arise, Ikawadani-cho, Nishi-ku, Kobe City 651-2180, Japan
| | - Nobuhiro Zaima
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 204-3327 Nakamachi, Nara City 631-8505, Japan
- Agricultural Technology and Innovation Research Institute, Kindai University,204-3327 Nakamachi, Nara City 631-8505, Japan
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van Geenen FAMG, Claassen FW, Franssen MCR, Zuilhof H, Nielen MWF. Laser Ablation Electrospray Ionization Hydrogen/Deuterium Exchange Ambient Mass Spectrometry Imaging. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:249-256. [PMID: 32031404 PMCID: PMC7053432 DOI: 10.1021/jasms.9b00082] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Identification and confirmation of known as well as unknown (bio)chemical entities in ambient mass spectrometry (MS) and MS imaging (MSI) mostly involve accurate mass determination, often in combination with MS/MS or MSn work flows. To further improve structural assignment, additional molecular information is required. Here we present an ambient hydrogen/deuterium exchange (HDX) laser ablation electrospray ionization (LAESI) MS method in which, apart from the accurate mass and MS/MS data, the number of exchangeable protons in (un)known molecules is obtained. While eventually presenting ambient HDX-LAESI-MSI, samples were not preincubated with deuterated solvents, but instead HDX occurred following fusion of ablated sample material with microdroplets generated by ESI of deuterated solvents. Therefore, the degree of HDX was first studied following ablation of nondeuterated sample solutions of melamine and monosaccharides. From these experiments, it was concluded that the set-up used could provide meaningful HDX data in support of molecular structure elucidation by significantly reducing the number of structure options from a measured elemental composition. This reduction was demonstrated with an unknown accurate m/z value obtained in the analysis of an orange slice, reducing the possible number of molecular structures having the same elemental composition by 87% due to the number of H/D exchanges observed. Next, deuterated and nondeuterated MS/MS experiments showed the number of exchangeable protons in the substructures from deuterated neutral losses in the product ion spectra, confirming the compound to be arginine. Finally, the potential of ambient HDX-LAESI-MSI was demonstrated by the imaging of (secondary) plant metabolites in a Phalaenopsis petal.
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Affiliation(s)
- Fred A. M. G. van Geenen
- Laboratory of Organic Chemistry,
Wageningen University, Stippeneng 4, 6708 WE Wageningen,
The Netherlands
- TI-COAST, Science Park 904,
1098 XH Amsterdam, The Netherlands
- Institute for Molecules and Materials, FELIX Laboratory,
Radboud University, Toernooiveld 7c, 6525 ED Nijmegen,
The Netherlands
| | - Frank W. Claassen
- Laboratory of Organic Chemistry,
Wageningen University, Stippeneng 4, 6708 WE Wageningen,
The Netherlands
| | - Maurice C. R. Franssen
- Laboratory of Organic Chemistry,
Wageningen University, Stippeneng 4, 6708 WE Wageningen,
The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry,
Wageningen University, Stippeneng 4, 6708 WE Wageningen,
The Netherlands
- School of Pharmaceutical Sciences and Technology,
Tianjin University, 92 Weijin Road, Tianjin 300072,
P.R. China
| | - Michel W. F. Nielen
- Laboratory of Organic Chemistry,
Wageningen University, Stippeneng 4, 6708 WE Wageningen,
The Netherlands
- Wageningen Food Safety Research (WFSR),
Wageningen University & Research, P.O. Box 230, 6700 AE
Wageningen, The Netherlands
- E-mail:
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Halouzka R, Zeljković SĆ, Klejdus B, Tarkowski P. Analytical methods in strigolactone research. PLANT METHODS 2020; 16:76. [PMID: 32514284 PMCID: PMC7257151 DOI: 10.1186/s13007-020-00616-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/15/2020] [Indexed: 05/02/2023]
Abstract
Strigolactones (SLs) are important plant hormones that are produced via the carotenoid biosynthetic pathway and occur at extremely low concentrations in various plant species. They regulate root development, play important roles in symbioses between higher plants and mycorrhizal fungi, and stimulate germination of plant-parasitic Orobanche and Striga species. Chemical analysis is central to research on the biochemistry of SLs and their roles in developmental biology and plant physiology. Here we summarize key issues relating to the identification and quantification of SLs isolated from plant tissues and exudates. The advantages and drawbacks of different protocols used for strigolactone analysis are discussed, and guidelines for selecting a procedure that will minimize losses during isolation and purification prior to final analysis are proposed. Hyphenated techniques suitable for SL analysis such as GC-MS and LC-MS/MS are also discussed, and newer ambient techniques such as HR-DART-MS and DESI-MS are highlighted as tools with considerable potential in SL research. A key advantage of these methods is that they require only simply sample preparation.
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Affiliation(s)
- Rostislav Halouzka
- Centre of Region Haná for Biotechnological and Agricultural Research, Department of Phytochemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czechia
| | - Sanja Ćavar Zeljković
- Centre of Region Haná for Biotechnological and Agricultural Research, Department of Phytochemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czechia
- Centre of Region Haná for Biotechnological and Agricultural Research, Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czechia
| | - Bořivoj Klejdus
- Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czechia
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czechia
| | - Petr Tarkowski
- Centre of Region Haná for Biotechnological and Agricultural Research, Department of Phytochemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czechia
- Centre of Region Haná for Biotechnological and Agricultural Research, Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czechia
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New Mass Spectrometric Approaches for the Quantitative Evaluation of Anticancer Drug Levels in Treated Patients. Ther Drug Monit 2019; 41:1-10. [PMID: 30422961 DOI: 10.1097/ftd.0000000000000573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Alternatively to the well-consolidated liquid chromatography coupled to tandem mass spectrometry approach used for the evaluation of anticancer drug concentrations in treated patients, new mass spectrometric methods have been proposed and tested recently. They exhibited faster analysis time and, at first sight, simpler instrumental approaches. However, results obtained by these methods require an in-depth evaluation, because of their strong dependence on the experimental set-up. In this short review, the quantification of irinotecan, sunitinib, and 6-α-hydroxy paclitaxel (the main metabolite of paclitaxel) by laser desorption ionization techniques (matrix-assisted laser desorption/ionization, nanostructure-assisted laser desorption/ionization, and surface-assisted laser desorption/ionization) is reported and discussed, showing the advantages but also the drawbacks of the methods. The matrix-assisted laser desorption/ionization approach led to the most reliable results, and the cross-validation for the quantitative analysis of irinotecan indicates that this method can be fruitfully used for therapeutic drug monitoring and pharmacokinetic studies. Another recently proposed technique, paper spray mass spectrometry, has been tested for the quantitative measurement of imatinib in plasma samples. Even if the approach is, at first sight, really simple, the parameterization of the analytical and instrumental aspects has required many efforts to reach satisfactory results. What it should be expected in the future is the evaluation of these methods, not only in scientific environments dedicated to instrument development, but also in clinical chemistry laboratories, to evaluate their effectiveness and to give new and valid tools for TDM and for other qualitative or quantitative measurements of biomedical interest.
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Oliveira DM, Silva TFR, Martins MM, de Morais SAL, Chang R, de Aquino FJT, da Silva CV, Teixeira TL, Martins CHG, Moraes TS, Cunha LCS, Pivatto M, de Oliveira A. Antifungal and cytotoxicity activities of Banisteriopsis argyrophylla leaves. J Pharm Pharmacol 2018; 70:1541-1552. [PMID: 30136729 DOI: 10.1111/jphp.12996] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/21/2018] [Indexed: 12/29/2022]
Abstract
OBJECTIVES This work aimed to evaluate the antifungal and cytotoxic activity of the EtOH extract and fractions of Banisteriopsis argyrophylla leaves, and to perform the identification of these bioactive metabolites. METHODS The EtOAc fraction (EAF) obtained from the ethanolic extract of B. argyrophylla leaves showed better antifungal potential against Candida spp. In this fraction, ten flavonoids have been identified by UHPLC-ESI-MSn . Then, EAF was submitted to column chromatography to give four new fractions (A1-A4). The cytotoxicity was determined against Vero cells. KEY FINDINGS The EAF showed better antifungal potential against Candida spp. with minimum inhibitory concentrations (MICs) between 31.25 and 93.75 μg/ml. The (-)-catechin (fraction A1) showed a MIC of 2.83 μg/ml against Candida glabrata. Fractions A2, A3 and A4 were rich in quercetins and kaempferols and showed good inhibitory concentrations (5.86-46.87 μg/ml) against C. albicans, C. glabrata and C. tropicalis. CONCLUSIONS The EtOH extract, fractions and the isolated (-)-catechin showed lower toxicity to Vero cells than cisplatin, used as a positive control. Thus, the leaves of B. argyrophylla are a promising source of antifungal agents.
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Affiliation(s)
- Daiane M Oliveira
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Tomás F R Silva
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Mário M Martins
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Sérgio A L de Morais
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Roberto Chang
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Francisco J T de Aquino
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Claudio V da Silva
- Trypanosomatids Laboratory (LATRI), Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Thaise L Teixeira
- Trypanosomatids Laboratory (LATRI), Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Carlos H G Martins
- Nucleus of Research in Sciences and Technology, Laboratory of Research in Applied Microbiology (LaPeMA), University of Franca, Franca, Brazil
| | - Thaís S Moraes
- Nucleus of Research in Sciences and Technology, Laboratory of Research in Applied Microbiology (LaPeMA), University of Franca, Franca, Brazil
| | - Luís C S Cunha
- Bioprospecting Center for Natural Products (NuBiProN), Chemistry Department, Federal Institute of Triângulo Mineiro, Uberaba, Brazil
| | - Marcos Pivatto
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Alberto de Oliveira
- Nucleus of Research in Natural Products (NuPPeN), Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil
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Qin L, Zhang Y, Liu Y, He H, Han M, Li Y, Zeng M, Wang X. Recent advances in matrix-assisted laser desorption/ionisation mass spectrometry imaging (MALDI-MSI) for in situ analysis of endogenous molecules in plants. PHYTOCHEMICAL ANALYSIS : PCA 2018; 29:351-364. [PMID: 29667236 DOI: 10.1002/pca.2759] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 02/01/2018] [Accepted: 02/04/2018] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Mass spectrometry imaging (MSI) as a label-free and powerful imaging technique enables in situ evaluation of a tissue metabolome and/or proteome, becoming increasingly popular in the detection of plant endogenous molecules. OBJECTIVE The characterisation of structure and spatial information of endogenous molecules in plants are both very important aspects to better understand the physiological mechanism of plant organism. METHODS Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) is a commonly-used tissue imaging technique, which requires matrix to assist in situ detection of a variety of molecules on the surface of a tissue section. In previous studies, MALDI-MSI was mostly used for the detection of molecules from animal tissue sections, compared to plant samples due to cell structural limitations, such as plant cuticles, epicuticular waxes, and cell walls. Despite the enormous progress that has been made in tissue imaging, there is still a challenge for MALDI-MSI suitable for the imaging of endogenous compounds in plants. RESULTS This review summarises the recent advances in MALDI-MSI, focusing on the application of in situ detection of endogenous molecules in different plant organs, i.e. root, stem, leaf, flower, fruit, and seed. CONCLUSION Further improvements on instrumentation sensitivity, matrix selection, image processing and sample preparation will expand the application of MALDI-MSI in plant research.
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Affiliation(s)
- Liang Qin
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
| | - Yawen Zhang
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
| | - Yaqin Liu
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
| | - Huixin He
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
| | - Manman Han
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
| | - Yanyan Li
- The Hospital of Minzu University of China, Minzu University of China, Beijing, P. R. China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- Collaborative Innovation Centre of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, P. R. China
| | - Xiaodong Wang
- Centre for Imaging & Systems Biology, Minzu University of China, Beijing, P. R. China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P. R. China
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Warren AD, Mitchell DJ, Gates PJ. Methodologies for the airbrush application of MALDI matrices. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:89-95. [PMID: 29334807 DOI: 10.1177/1469066717750031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
There is still a need to develop reliable and robust matrix deposition methods for matrix-assisted laser desorption/ionisation mass spectrometry that are applicable to a range of matrices, solvents and analyte types. This paper presents a robust methodology for the airbrush application of matrices along with the implications of varying the set-up and airbrush parameters. A small number of organic analytes and metal salts are analysed in both positive and negative ion modes to exemplify this methodology. In the analyses with the airbrush deposited matrices, performance was enhanced when compared to standard pipette deposition with the need for a search for sweat spots greatly diminished due to the increase homogeneity of the matrix surface and resultant analyte spots. As expected, the graphite matrices were shown to specifically outperform the organic matrices in negative ion mode.
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Affiliation(s)
- Alexander D Warren
- 1 School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK
| | | | - Paul J Gates
- 1 School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK
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Muthu M, Gopal J, Chun S. Nanopost array laser desorption ionization mass spectrometry (NAPA-LDI MS): Gathering moss? Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Cohen H, Szymanski J, Aharoni A, Dominguez E. Assimilation of 'omics' strategies to study the cuticle layer and suberin lamellae in plants. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:5389-5400. [PMID: 29040673 DOI: 10.1093/jxb/erx348] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The assembly of the lipophilic cuticle layer and suberin lamellae, approximately 450 million years ago, was a major evolutionary development that enabled plants to colonize terrestrial habitats. The cuticle layer is composed of cutin polyester and embedded cuticular waxes, whereas the suberin lamellae consist of very long chain fatty acid derivatives, glycerol, and phenolics cross-linked with alkyl ferulate-embedded waxes. Due to their substantial biological roles in plant life, the mechanisms underlying the assembly of these structures have been extensively investigated. In the last decade, the introduction of 'omics' approaches, including genomics, transcriptomics, proteomics, and metabolomics, have been key in the identification of novel genetic and chemical elements involved in the formation and function of the cuticle layer and suberin lamellae. This review summarizes contemporary studies that utilized various large-scale, 'omics' strategies in combination with novel technologies to unravel how building blocks and polymers of these lipophilic barriers are made, and moreover linking structure to function along developmental programs and stress responses. We anticipate that the studies discussed here will inspire scientists studying lipophilic barriers to integrate complementary 'omics' approaches in their efforts to tackle as yet unresolved questions and engage the main challenges of the field to date.
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Affiliation(s)
- Hagai Cohen
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Jedrzej Szymanski
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Asaph Aharoni
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
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Feenstra AD, Dueñas ME, Lee YJ. Five Micron High Resolution MALDI Mass Spectrometry Imaging with Simple, Interchangeable, Multi-Resolution Optical System. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:434-442. [PMID: 28050871 DOI: 10.1007/s13361-016-1577-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/17/2016] [Accepted: 12/08/2016] [Indexed: 05/18/2023]
Abstract
High-spatial resolution mass spectrometry imaging (MSI) is crucial for the mapping of chemical distributions at the cellular and subcellular level. In this work, we improved our previous laser optical system for matrix-assisted laser desorption ionization (MALDI)-MSI, from ~9 μm practical laser spot size to a practical laser spot size of ~4 μm, thereby allowing for 5 μm resolution imaging without oversampling. This is accomplished through a combination of spatial filtering, beam expansion, and reduction of the final focal length. Most importantly, the new laser optics system allows for simple modification of the spot size solely through the interchanging of the beam expander component. Using 10×, 5×, and no beam expander, we could routinely change between ~4, ~7, and ~45 μm laser spot size, in less than 5 min. We applied this multi-resolution MALDI-MSI system to a single maize root tissue section with three different spatial resolutions of 5, 10, and 50 μm and compared the differences in imaging quality and signal sensitivity. We also demonstrated the difference in depth of focus between the optical systems with 10× and 5× beam expanders. Graphical Abstract ᅟ.
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Affiliation(s)
- Adam D Feenstra
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
- Ames Laboratory-US DOE, Ames, IA, 50011, USA
| | - Maria Emilia Dueñas
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
- Ames Laboratory-US DOE, Ames, IA, 50011, USA
| | - Young Jin Lee
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.
- Ames Laboratory-US DOE, Ames, IA, 50011, USA.
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Spatial Metabolite Profiling by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry Imaging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 965:291-321. [DOI: 10.1007/978-3-319-47656-8_12] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Chemical intervention in plant sugar signalling increases yield and resilience. Nature 2016; 540:574-578. [PMID: 27974806 DOI: 10.1038/nature20591] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 10/28/2016] [Indexed: 12/12/2022]
Abstract
The pressing global issue of food insecurity due to population growth, diminishing land and variable climate can only be addressed in agriculture by improving both maximum crop yield potential and resilience. Genetic modification is one potential solution, but has yet to achieve worldwide acceptance, particularly for crops such as wheat. Trehalose-6-phosphate (T6P), a central sugar signal in plants, regulates sucrose use and allocation, underpinning crop growth and development. Here we show that application of a chemical intervention strategy directly modulates T6P levels in planta. Plant-permeable analogues of T6P were designed and constructed based on a 'signalling-precursor' concept for permeability, ready uptake and sunlight-triggered release of T6P in planta. We show that chemical intervention in a potent sugar signal increases grain yield, whereas application to vegetative tissue improves recovery and resurrection from drought. This technology offers a means to combine increases in yield with crop stress resilience. Given the generality of the T6P pathway in plants and other small-molecule signals in biology, these studies suggest that suitable synthetic exogenous small-molecule signal precursors can be used to directly enhance plant performance and perhaps other organism function.
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Dong Y, Li B, Malitsky S, Rogachev I, Aharoni A, Kaftan F, Svatoš A, Franceschi P. Sample Preparation for Mass Spectrometry Imaging of Plant Tissues: A Review. FRONTIERS IN PLANT SCIENCE 2016; 7:60. [PMID: 26904042 PMCID: PMC4748743 DOI: 10.3389/fpls.2016.00060] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/14/2016] [Indexed: 05/18/2023]
Abstract
Mass spectrometry imaging (MSI) is a mass spectrometry based molecular ion imaging technique. It provides the means for ascertaining the spatial distribution of a large variety of analytes directly on tissue sample surfaces without any labeling or staining agents. These advantages make it an attractive molecular histology tool in medical, pharmaceutical, and biological research. Likewise, MSI has started gaining popularity in plant sciences; yet, information regarding sample preparation methods for plant tissues is still limited. Sample preparation is a crucial step that is directly associated with the quality and authenticity of the imaging results, it therefore demands in-depth studies based on the characteristics of plant samples. In this review, a sample preparation pipeline is discussed in detail and illustrated through selected practical examples. In particular, special concerns regarding sample preparation for plant imaging are critically evaluated. Finally, the applications of MSI techniques in plants are reviewed according to different classes of plant metabolites.
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Affiliation(s)
- Yonghui Dong
- Biostatistics and Data Management, Research and Innovation Centre - Fondazione Edmund MachS. Michele all'Adige, Italy
- Department of Plant and Environmental Sciences, Weizmann Institute of ScienceRehovot, Israel
| | - Bin Li
- Department of Chemistry and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-ChampaignUrbana, IL, USA
| | - Sergey Malitsky
- Department of Plant and Environmental Sciences, Weizmann Institute of ScienceRehovot, Israel
| | - Ilana Rogachev
- Department of Plant and Environmental Sciences, Weizmann Institute of ScienceRehovot, Israel
| | - Asaph Aharoni
- Department of Plant and Environmental Sciences, Weizmann Institute of ScienceRehovot, Israel
| | - Filip Kaftan
- Research Group Mass Spectrometry/Proteomics, Max Planck Institute for Chemical EcologyJena, Germany
| | - Aleš Svatoš
- Research Group Mass Spectrometry/Proteomics, Max Planck Institute for Chemical EcologyJena, Germany
| | - Pietro Franceschi
- Biostatistics and Data Management, Research and Innovation Centre - Fondazione Edmund MachS. Michele all'Adige, Italy
- *Correspondence: Pietro Franceschi
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Boughton BA, Thinagaran D, Sarabia D, Bacic A, Roessner U. Mass spectrometry imaging for plant biology: a review. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2015; 15:445-488. [PMID: 27340381 PMCID: PMC4870303 DOI: 10.1007/s11101-015-9440-2] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 09/25/2015] [Indexed: 05/09/2023]
Abstract
Mass spectrometry imaging (MSI) is a developing technique to measure the spatio-temporal distribution of many biomolecules in tissues. Over the preceding decade, MSI has been adopted by plant biologists and applied in a broad range of areas, including primary metabolism, natural products, plant defense, plant responses to abiotic and biotic stress, plant lipids and the developing field of spatial metabolomics. This review covers recent advances in plant-based MSI, general aspects of instrumentation, analytical approaches, sample preparation and the current trends in respective plant research.
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Affiliation(s)
- Berin A. Boughton
- />Metabolomics Australia, School of BioSciences, The University of Melbourne, Parkville, VIC 3010 Australia
| | - Dinaiz Thinagaran
- />School of BioSciences, The University of Melbourne, Parkville, VIC 3010 Australia
| | - Daniel Sarabia
- />School of BioSciences, The University of Melbourne, Parkville, VIC 3010 Australia
| | - Antony Bacic
- />School of BioSciences, The University of Melbourne, Parkville, VIC 3010 Australia
- />ARC Centre of Excellence in Plant Cell Walls, School of BioSciences, University of Melbourne, Parkville, VIC 3010 Australia
- />Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC 3010 Australia
| | - Ute Roessner
- />School of BioSciences, The University of Melbourne, Parkville, VIC 3010 Australia
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Sumner LW, Lei Z, Nikolau BJ, Saito K. Modern plant metabolomics: advanced natural product gene discoveries, improved technologies, and future prospects. Nat Prod Rep 2015; 32:212-29. [PMID: 25342293 DOI: 10.1039/c4np00072b] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Plant metabolomics has matured and modern plant metabolomics has accelerated gene discoveries and the elucidation of a variety of plant natural product biosynthetic pathways. This review covers the approximate period of 2000 to 2014, and highlights specific examples of the discovery and characterization of novel genes and enzymes associated with the biosynthesis of natural products such as flavonoids, glucosinolates, terpenoids, and alkaloids. Additional examples of the integration of metabolomics with genome-based functional characterizations of plant natural products that are important to modern pharmaceutical technology are also reviewed. This article also provides a substantial review of recent technical advances in mass spectrometry imaging, nuclear magnetic resonance imaging, integrated LC-MS-SPE-NMR for metabolite identifications, and X-ray crystallography of microgram quantities for structural determinations. The review closes with a discussion on the future prospects of metabolomics related to crop species and herbal medicine.
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Affiliation(s)
- Lloyd W Sumner
- The Samuel Roberts Noble Foundation, Plant Biology Division, 2510 Sam Noble Parkway, Ardmore, OK, USA.
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31
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Annangudi SP, Myung K, Avila Adame C, Bowling AJ, Dasari M, Gilbert JR. Response to Comment on "MALDI-MS Imaging Analysis of Fungicide Residue Distributions on Wheat Leaf Surfaces". ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:10747-10749. [PMID: 26266690 DOI: 10.1021/acs.est.5b03670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Suresh P Annangudi
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Kyung Myung
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Cruz Avila Adame
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Andrew J Bowling
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Mallika Dasari
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Jeffrey R Gilbert
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
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32
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Brauer JI, Beech IB, Sunner J. Mass Spectrometric Imaging Using Laser Ablation and Solvent Capture by Aspiration (LASCA). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:1538-1547. [PMID: 26122514 DOI: 10.1007/s13361-015-1176-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 04/24/2015] [Accepted: 04/25/2015] [Indexed: 06/04/2023]
Abstract
A novel interface for ambient, laser ablation-based mass spectrometric imaging (MSI) referred to as laser ablation and solvent capture by aspiration (LASCA) is presented and its performance demonstrated using selected, unaltered biological materials. LASCA employs a pulsed 2.94 μm laser beam for specimen ablation. Ablated materials in the laser plumes are collected on a hanging solvent droplet with electric field-enhanced trapping, followed by aspiration of droplets and remaining plume material in the form of a coarse aerosol into a collection capillary. The gas and liquid phases are subsequently separated in a 10 μL-volume separatory funnel, and the solution is analyzed with electrospray ionization in a high mass resolution Q-ToF mass spectrometer. The LASCA system separates the sampling and ionization steps in MSI and combines high efficiencies of laser plume sampling and of electrospray ionization (ESI) with high mass resolution MS. Up to 2000 different compounds are detected from a single ablation spot (pixel). Using the LASCA platform, rapid (6 s per pixel), high sensitivity, high mass-resolution ambient imaging of "as-received" biological material is achieved routinely and reproducibly.
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Affiliation(s)
- Jonathan I Brauer
- Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, 73019, USA
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Janfelt C. Imaging of plant materials using indirect desorption electrospray ionization mass spectrometry. Methods Mol Biol 2015; 1203:91-97. [PMID: 25361669 DOI: 10.1007/978-1-4939-1357-2_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Indirect desorption electrospray ionization mass spectrometry (DESI-MS) imaging is a method for imaging distributions of metabolites in plant materials, in particular leaves and petals. The challenge in direct imaging of such plant materials with DESI-MS is particularly the protective layer of cuticular wax present in leaves and petals. The cuticle protects the plant from drying out, but also makes it difficult for the DESI sprayer to reach the analytes of interest inside the plant material. A solution to this problem is to imprint the plant material onto a surface, thus releasing the analytes of interest from parts of their matrix while preserving the spatial information in the two dimensions. The imprint can then easily be imaged by DESI-MS. The method delivers simple and robust mass spectrometry imaging of plant material with very high success ratios.
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Affiliation(s)
- Christian Janfelt
- Section for Analytical Biosciences, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark,
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Schmidt GW, Jirschitzka J, Porta T, Reichelt M, Luck K, Torre JCP, Dolke F, Varesio E, Hopfgartner G, Gershenzon J, D'Auria JC. The last step in cocaine biosynthesis is catalyzed by a BAHD acyltransferase. PLANT PHYSIOLOGY 2015; 167:89-101. [PMID: 25406120 PMCID: PMC4281001 DOI: 10.1104/pp.114.248187] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 11/18/2014] [Indexed: 05/20/2023]
Abstract
The esterification of methylecgonine (2-carbomethoxy-3β-tropine) with benzoic acid is the final step in the biosynthetic pathway leading to the production of cocaine in Erythoxylum coca. Here we report the identification of a member of the BAHD family of plant acyltransferases as cocaine synthase. The enzyme is capable of producing both cocaine and cinnamoylcocaine via the activated benzoyl- or cinnamoyl-Coenzyme A thioesters, respectively. Cocaine synthase activity is highest in young developing leaves, especially in the palisade parenchyma and spongy mesophyll. These data correlate well with the tissue distribution pattern of cocaine as visualized with antibodies. Matrix-assisted laser-desorption ionization mass spectral imaging revealed that cocaine and cinnamoylcocaine are differently distributed on the upper versus lower leaf surfaces. Our findings provide further evidence that tropane alkaloid biosynthesis in the Erythroxylaceae occurs in the above-ground portions of the plant in contrast with the Solanaceae, in which tropane alkaloid biosynthesis occurs in the roots.
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Affiliation(s)
- Gregor Wolfgang Schmidt
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Jan Jirschitzka
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Tiffany Porta
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Michael Reichelt
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Katrin Luck
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - José Carlos Pardo Torre
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Franziska Dolke
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Emmanuel Varesio
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Gérard Hopfgartner
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - Jonathan Gershenzon
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
| | - John Charles D'Auria
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, D-07745 Jena, Germany (G.W.S., J.J., M.R., K.L., J.C.P.T., F.D., J.G., J.C.D.); andLife Sciences Mass Spectrometry Research Unit, School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland (T.P., E.V., G.H.)
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Lee G, Bae SE, Huh S, Cha S. Graphene oxide embedded sol–gel (GOSG) film as a SALDI MS substrate for robust metabolite fingerprinting. RSC Adv 2015. [DOI: 10.1039/c5ra11497g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A graphene oxide embedded sol–gel (GOSG) film was utilized as a substrate for surface-assisted laser desorption/ionization mass spectrometry (SALDI MS).
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Affiliation(s)
- Gwangbin Lee
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Sang-Eun Bae
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Seong Huh
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
| | - Sangwon Cha
- Department of Chemistry
- Hankuk University of Foreign Studies
- Yongin
- Korea
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36
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Becker L, Carré V, Poutaraud A, Merdinoglu D, Chaimbault P. MALDI mass spectrometry imaging for the simultaneous location of resveratrol, pterostilbene and viniferins on grapevine leaves. Molecules 2014; 19:10587-600. [PMID: 25050857 PMCID: PMC6271053 DOI: 10.3390/molecules190710587] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 07/01/2014] [Accepted: 07/16/2014] [Indexed: 02/06/2023] Open
Abstract
To investigate the in-situ response to a stress, grapevine leaves have been subjected to mass spectrometry imaging (MSI) experiments. The Matrix Assisted Laser Desorption/Ionisation (MALDI) approach using different matrices has been evaluated. Among all the tested matrices, the 2,5-dihydroxybenzoic acid (DHB) was found to be the most efficient matrix allowing a broader range of detected stilbene phytoalexins. Resveratrol, but also more toxic compounds against fungi such as pterostilbene and viniferins, were identified and mapped. Their spatial distributions on grapevine leaves irradiated by UV show their specific colocation around the veins. Moreover, MALDI MSI reveals that resveratrol (and piceids) and viniferins are not specifically located on the same area when leaves are infected by Plasmopara viticola. Results obtained by MALDI mass spectrometry imaging demonstrate that this technique would be essential to improve the level of knowledge concerning the role of the stilbene phytoalexins involved in a stress event.
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Affiliation(s)
- Loïc Becker
- Laboratoire de Chimie et Physique-Approche Multi échelle des Milieux Complexes (LCP-A2MC), Institut Jean Barriol (FR 2843), Université de Lorraine, ICPM 1 Boulevard Arago, F-57078 Metz, France.
| | - Vincent Carré
- Laboratoire de Chimie et Physique-Approche Multi échelle des Milieux Complexes (LCP-A2MC), Institut Jean Barriol (FR 2843), Université de Lorraine, ICPM 1 Boulevard Arago, F-57078 Metz, France.
| | - Anne Poutaraud
- Institut National de Recherche en Agronomie (INRA) - Santé de la Vigne et Qualité du Vin (UMR 1131), 28 rue de Herrlisheim, F-68021 Colmar, France.
| | - Didier Merdinoglu
- Institut National de Recherche en Agronomie (INRA) - Santé de la Vigne et Qualité du Vin (UMR 1131), 28 rue de Herrlisheim, F-68021 Colmar, France.
| | - Patrick Chaimbault
- Laboratoire de Chimie et Physique-Approche Multi échelle des Milieux Complexes (LCP-A2MC), Institut Jean Barriol (FR 2843), Université de Lorraine, ICPM 1 Boulevard Arago, F-57078 Metz, France.
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Horn PJ, Chapman KD. Lipidomics in situ: Insights into plant lipid metabolism from high resolution spatial maps of metabolites. Prog Lipid Res 2014; 54:32-52. [DOI: 10.1016/j.plipres.2014.01.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/14/2014] [Accepted: 01/14/2014] [Indexed: 12/31/2022]
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Bjarnholt N, Li B, D'Alvise J, Janfelt C. Mass spectrometry imaging of plant metabolites--principles and possibilities. Nat Prod Rep 2014; 31:818-37. [PMID: 24452137 DOI: 10.1039/c3np70100j] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: up to the end of 2013 New mass spectrometry imaging (MSI) techniques are gaining importance in the analysis of plant metabolite distributions, and significant technological improvements have been introduced in the past decade. This review provides an introduction to the different MSI techniques and their applications in plant science. The most common methods for sample preparation are described, and the review also features a comprehensive table of published studies in MSI of plant material. A number of significant works are highlighted for their contributions to advance the understanding of plant biology through applications of plant metabolite imaging. Particular attention is given to the possibility for imaging of surface metabolites since this is highly dependent on the methods and techniques which are applied in imaging studies.
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Affiliation(s)
- Nanna Bjarnholt
- Department of Plant and Environmental Sciences, University of Copenhagen, Bülowsvej 17, 1870 Frederiksberg C, Copenhagen, Denmark
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Traldi P, Calandra E, Crotti S, Agostini M, Nitti D, Roverso M, Toffoli G, Marangon E, Posocco B. Matrix-assisted laser desorption/ionization, nanostructure-assisted laser desorption/ionization and carbon nanohorns in the detection of antineoplastic drugs. 1. The cases of irinotecan, sunitinib and 6-alpha-hydroxy paclitaxel. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2014; 20:445-459. [PMID: 25905869 DOI: 10.1255/ejms.1302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of surface-assisted laser desorption/ionization (SALDI) methodologies in mass spectrometry allows, in principle, the development of new analytical approaches to qualitative and quantitative measurements on small molecules. Some of these methods have been applied to characterize two antineoplastic drugs: irinotecan (1) and sunitinib (2), and also 6-α-hydroxy-paclitaxel (3), the main metabolite of paclitaxel. Three different SALDI approaches have been tested employing nanostructure- assisted laser desorption/ionization (NALDI), carbon nanohorns (NHs) and carbon nanohorns covered by liquid additives. The results so obtained have been compared to those observed under matrix-assisted laser desorption/ionization (MALDI) conditions. Compounds 1 and 2 show the easy formation of protonated molecular species under all the experimental conditions, but the highest absolute intensity was achieved by NALDI. On the contrary, ionic species of low intensity are present for 3, among which are those that exhibit the highest intensity caused by [M+K](+) ions. After a critical evaluation of the obtained data, the linear response of the [M+H](+) ion intensity of 1 versus different deposited sample amounts was investigated, and the best results (R(2) = 0.9889) were obtained under MALDI conditions. The analysis of plasma samples spiked with 1 showed, again, that the MALDI approach was the best one (R(2) = 0.9766). The failure of NALDI measurements could be rationalized by the presence of ion suppression effects.
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Affiliation(s)
- Pietro Traldi
- IENI CNR, Corso Stati Uniti 4, 35127 Padova (PD), Italy. Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy.
| | - Eleonora Calandra
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Sara Crotti
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Marco Agostini
- Istituto di Ricerca Pediatrica - Città della Speranza, Corso Stati Uniti 4, 35127 Padova, Italy. Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Via Nicolo Giustiniani 2, 35128 Padova, Italy. Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Avenue, Houston, 77030 TX, USA.
| | - Donato Nitti
- Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Via Nicolo Giustiniani 2, 35128 Padova, Italy.
| | - Marco Roverso
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, I-35100 Padova, Italy.
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Elena Marangon
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
| | - Bianca Posocco
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico, IRCCS National Cancer Institute, Via Franco Gallini 2, 33081 Aviano (PN), Italy.
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Yamagaki T, Watanabe T, Tanaka M, Sugahara K. Laser-induced hydrogen radical removal in UV MALDI-MS allows for the differentiation of flavonoid monoglycoside isomers. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:88-94. [PMID: 24249042 PMCID: PMC3880485 DOI: 10.1007/s13361-013-0764-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 09/20/2013] [Accepted: 09/24/2013] [Indexed: 06/02/2023]
Abstract
Negative-ion matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectra and tandem mass spectra of flavonoid mono-O-glycosides showed the irregular signals that were 1 and/or 2 Da smaller than the parent deprotonated molecules ([M - H](-)) and the sugar-unit lost fragment ions ([M - Sugar - H](-)). The 1 and/or 2 Da mass shifts are generated with the removing of a neutral hydrogen radical (H*), and/or with the homolytic cleavage of the glycosidic bond, such as [M - H* - H](-), [M - Sugar - H* - H](-), and [M - Sugar - 2H* - H](-). It was revealed that the hydrogen radical removes from the phenolic hydroxy groups on the flavonoids, not from the sugar moiety, because the flavonoid backbones themselves absorb the laser. The glycosyl positions depend on the extent of the hydrogen radical removals and that of the homolytic cleavage of the glycosidic bonds. Flavonoid mono-glycoside isomers were distinguished according to their TOF MS and tandem mass spectra.
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Affiliation(s)
- Tohru Yamagaki
- Suntory Institute for Bioorganic Research, Shimamoto, Mishima, Osaka, 618-0001, Japan,
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41
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Li C, Wang Z, Jones AD. Chemical imaging of trichome specialized metabolites using contact printing and laser desorption/ionization mass spectrometry. Anal Bioanal Chem 2013; 406:171-82. [DOI: 10.1007/s00216-013-7444-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 10/02/2013] [Accepted: 10/16/2013] [Indexed: 12/16/2022]
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Borisjuk L, Rolletschek H, Neuberger T. Nuclear magnetic resonance imaging of lipid in living plants. Prog Lipid Res 2013; 52:465-87. [DOI: 10.1016/j.plipres.2013.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 05/15/2013] [Accepted: 05/28/2013] [Indexed: 01/13/2023]
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Ye H, Gemperline E, Venkateshwaran M, Chen R, Delaux PM, Howes-Podoll M, Ané JM, Li L. MALDI mass spectrometry-assisted molecular imaging of metabolites during nitrogen fixation in the Medicago truncatula-Sinorhizobium meliloti symbiosis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2013; 75:130-145. [PMID: 23551619 DOI: 10.1111/tpj.12191] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/19/2013] [Accepted: 03/25/2013] [Indexed: 05/21/2023]
Abstract
Symbiotic associations between leguminous plants and nitrogen-fixing rhizobia culminate in the formation of specialized organs called root nodules, in which the rhizobia fix atmospheric nitrogen and transfer it to the plant. Efficient biological nitrogen fixation depends on metabolites produced by and exchanged between both partners. The Medicago truncatula-Sinorhizobium meliloti association is an excellent model for dissecting this nitrogen-fixing symbiosis because of the availability of genetic information for both symbiotic partners. Here, we employed a powerful imaging technique - matrix-assisted laser desorption/ionization (MALDI)/mass spectrometric imaging (MSI) - to study metabolite distribution in roots and root nodules of M. truncatula during nitrogen fixation. The combination of an efficient, novel MALDI matrix [1,8-bis(dimethyl-amino) naphthalene, DMAN] with a conventional matrix 2,5-dihydroxybenzoic acid (DHB) allowed detection of a large array of organic acids, amino acids, sugars, lipids, flavonoids and their conjugates with improved coverage. Ion density maps of representative metabolites are presented and correlated with the nitrogen fixation process. We demonstrate differences in metabolite distribution between roots and nodules, and also between fixing and non-fixing nodules produced by plant and bacterial mutants. Our study highlights the benefits of using MSI for detecting differences in metabolite distributions in plant biology.
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Affiliation(s)
- Hui Ye
- School of Pharmacy, University of Wisconsin - Madison, Madison, WI, 53705, USA
| | - Erin Gemperline
- Department of Chemistry, University of Wisconsin - Madison, Madison, WI, 53706, USA
| | | | - Ruibing Chen
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Pierre-Marc Delaux
- Department of Agronomy, University of Wisconsin - Madison, Madison, WI, 53706, USA
| | - Maegen Howes-Podoll
- Department of Agronomy, University of Wisconsin - Madison, Madison, WI, 53706, USA
| | - Jean-Michel Ané
- Department of Agronomy, University of Wisconsin - Madison, Madison, WI, 53706, USA
| | - Lingjun Li
- School of Pharmacy, University of Wisconsin - Madison, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin - Madison, Madison, WI, 53706, USA
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Li B, Knudsen C, Hansen NK, Jørgensen K, Kannangara R, Bak S, Takos A, Rook F, Hansen SH, Møller BL, Janfelt C, Bjarnholt N. Visualizing metabolite distribution and enzymatic conversion in plant tissues by desorption electrospray ionization mass spectrometry imaging. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2013; 74:1059-71. [PMID: 23551340 DOI: 10.1111/tpj.12183] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 03/08/2013] [Accepted: 03/15/2013] [Indexed: 05/22/2023]
Abstract
In comparison with the technology platforms developed to localize transcripts and proteins, imaging tools for visualization of metabolite distributions in plant tissues are less well developed and lack versatility. This hampers our understanding of plant metabolism and dynamics. In this study, we demonstrate that desorption electrospray ionization mass spectrometry imaging (DESI-MSI) of tissue imprints on porous Teflon may be used to accurately image the distribution of even labile plant metabolites such as hydroxynitrile glucosides, which normally undergo enzymatic hydrolysis by specific β-glucosidases upon cell disruption. This fast and simple sample preparation resulted in no substantial differences in the distribution and ratios of all hydroxynitrile glucosides between leaves from wild-type Lotus japonicus and a β-glucosidase mutant plant that lacks the ability to hydrolyze certain hydroxynitrile glucosides. In wild-type, the enzymatic conversion of hydroxynitrile glucosides and the concomitant release of glucose were easily visualized when a restricted area of the leaf tissue was damaged prior to sample preparation. The gene encoding the first enzyme in hydroxynitrile glucoside biosynthesis in L. japonicus leaves, CYP79D3, was found to be highly expressed during the early stages of leaf development, and the hydroxynitrile glucoside distribution in mature leaves reflected this early expression pattern. The utility of direct DESI-MSI of plant tissue was demonstrated using cryo-sections of cassava (Manihot esculenta) tubers. The hydroxynitrile glucoside levels were highest in the outer cell layers, as verified by LC-MS analyses. The unexpected discovery of a hydroxynitrile-derived di-glycoside shows the potential of DESI-MSI to discover and guide investigations into new metabolic routes.
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Affiliation(s)
- Bin Li
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen, Denmark
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Norris JL, Caprioli RM. Analysis of tissue specimens by matrix-assisted laser desorption/ionization imaging mass spectrometry in biological and clinical research. Chem Rev 2013; 113:2309-42. [PMID: 23394164 PMCID: PMC3624074 DOI: 10.1021/cr3004295] [Citation(s) in RCA: 488] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jeremy L. Norris
- National Research Resource for Imaging Mass Spectrometry, Mass Spectrometry Research Center, and Department of Biochemistry, Vanderbilt University School of Medicine, 9160 Medical Research Building III, 465 21st Avenue South, Nashville, TN 37232-8575
| | - Richard M. Caprioli
- National Research Resource for Imaging Mass Spectrometry, Mass Spectrometry Research Center, and Department of Biochemistry, Vanderbilt University School of Medicine, 9160 Medical Research Building III, 465 21st Avenue South, Nashville, TN 37232-8575
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Matros A, Mock HP. Mass spectrometry based imaging techniques for spatially resolved analysis of molecules. FRONTIERS IN PLANT SCIENCE 2013; 4:89. [PMID: 23626593 PMCID: PMC3630297 DOI: 10.3389/fpls.2013.00089] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 03/22/2013] [Indexed: 05/18/2023]
Abstract
Higher plants are composed of a multitude of tissues with specific functions, reflected by distinct profiles for transcripts, proteins, and metabolites. Comprehensive analysis of metabolites and proteins has advanced tremendously within recent years, and this progress has been driven by the rapid development of sophisticated mass spectrometric techniques. In most of the current "omics"-studies, analysis is performed on whole organ or whole plant extracts, rendering to the loss of spatial information. Mass spectrometry imaging (MSI) techniques have opened a new avenue to obtain information on the spatial distribution of metabolites and of proteins. Pioneered in the field of medicine, the approaches are now applied to study the spatial profiles of molecules in plant systems. A range of different plant organs and tissues have been successfully analyzed by MSI, and patterns of various classes of metabolites from primary and secondary metabolism could be obtained. It can be envisaged that MSI approaches will substantially contribute to build spatially resolved biochemical networks.
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Affiliation(s)
- Andrea Matros
- Leibniz Institute of Plant Genetics and Crop Plant ResearchGatersleben, Germany
| | - Hans-Peter Mock
- Leibniz Institute of Plant Genetics and Crop Plant ResearchGatersleben, Germany
- *Correspondence: Hans-Peter Mock, Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstrasse 3, 06466 Gatersleben, Germany. e-mail:
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Chung PW, Charmot A, Gazit OM, Katz A. Glucan adsorption on mesoporous carbon nanoparticles: effect of chain length and internal surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:15222-15232. [PMID: 23020524 DOI: 10.1021/la3030364] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The adsorption of cellulose-derived long-chain (longer than ten glucose repeat units on size) glucans onto carbon-based acid catalysts for hydrolysis has long been hypothesized; however, to date, there is no information on whether such adsorption can occur and how glucan chain length influences adsorption. Herein, in this manuscript, we first describe how glucan chain length influences adsorption energetics, and use this to understand the adsorption of long-chain glucans onto mesoporous carbon nanoparticles (MCN) from a concentrated acid solution, and the effect of mesoporosity on this process. Our results conclusively demonstrate that mesoporous carbon nanoparticle (MCN) materials adsorb long-chain glucans from concentrated acid hydrolyzate in amounts of up to 30% by mass (303 mg/g of MCN), in a manner that causes preferential adsorption of longer-chain glucans of up to 40 glucose repeat units and, quite unexpectedly, fast adsorption equilibration times of less than 4 min. In contrast, graphite-type carbon nanopowders (CNP) that lack internal mesoporosity adsorb glucans in amounts less than 1% by mass (7.7 mg/g of CNP), under similar conditions. This inefficiency of glucan adsorption on CNP might be attributed to the lack of internal mesoporosity, since the CNP actually possesses greater external surface area relative to MCN. A systematic study of adsorption of glucans in the series glucose to cellotetraose on MCN shows a monotonically decreasing free energy of adsorption upon increasing the glucan chain length. The free energy of adsorption decreases by at least 0.4 kcal/mol with each additional glucose unit in this series, and these energetics are consistent with CH-π interactions providing a significant energetic contribution for adsorption, similar to previous observations in glycoproteins. HPLC of hydrolyzed fragments in solution, (13)C Bloch decay NMR spectroscopy, and GPC provide material balance closure of adsorbed glucan coverages on MCN materials. The latter and MALDI-TOF-MS provide direct evidence for adsorption of long-chain glucans on the MCN surface, which have a radius of gyration larger than the pore radius of the MCN material.
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Affiliation(s)
- Po-Wen Chung
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States.
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Kawasaki H, Ozawa T, Hisatomi H, Arakawa R. Platinum vapor deposition surface-assisted laser desorption/ionization for imaging mass spectrometry of small molecules. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:1849-1858. [PMID: 22777787 DOI: 10.1002/rcm.6301] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) allows for the simultaneous detection and imaging of several molecules in a sample. However, when using an organic matrix in the MALDI-IMS of small molecules, inhomogeneous matrix crystallization may yield poorly reproducible peaks in the mass spectra. We describe a solvent-free approach that employs a homogeneously deposited metal nanoparticle layer (or film) for small-molecule detection. METHODS Platinum vapor deposition surface-assisted laser desorption/ionization imaging mass spectrometry (Pt vapor deposition SALDI-IMS) of small molecules was performed as a solvent-free and organic-matrix-free method. A commercially available magnetron sputtering device was used for Pt deposition. Vapor deposition of Pt produced a homogenous layer of nanoparticles over the surface of the target imaging sample. RESULTS The effectiveness of Pt vapor deposition SALDI-IMS was demonstrated for the direct detection of small analytes of inkjet ink on printed paper as well as for various other analytes (saccharides, pigments, and drugs) separated by thin-layer chromatography (TLC), without the need for extraction or concentration processes. The advantage of choosing Pt instead of Au in SALDI-IMS was also shown. CONCLUSIONS A solvent-free approach involving the direct deposition of Pt on samples (SALDI-IMS) is effective for the analysis of inkjet-printed papers and various analytes separated by TLC. This method would be useful in imaging analyses of various insulating materials such as polymers and biological materials.
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Affiliation(s)
- Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials, and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka, 564-8680, Japan.
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Ha M, Kwak JH, Kim Y, Zee OP. Direct analysis for the distribution of toxic glycoalkaloids in potato tuber tissue using matrix-assisted laser desorption/ionization mass spectrometric imaging. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.11.114] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kueger S, Steinhauser D, Willmitzer L, Giavalisco P. High-resolution plant metabolomics: from mass spectral features to metabolites and from whole-cell analysis to subcellular metabolite distributions. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2012; 70:39-50. [PMID: 22449042 DOI: 10.1111/j.1365-313x.2012.04902.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The main goal of metabolomics is the comprehensive qualitative and quantitative analysis of the time- and space-resolved distribution of all metabolites present in a given biological system. Because metabolite structures, in contrast to transcript and protein sequences, are not directly deducible from the genomic DNA sequence, the massive increase in genomic information is only indirectly of use to metabolomics, leaving compound annotation as a key problem to be solved by the available analytical techniques. Furthermore, as metabolites vary widely in both concentration and chemical behavior, there is no single analytical procedure allowing the unbiased and comprehensive structural elucidation and determination of all metabolites present in a given biological system. In this review the different approaches for targeted and non-targeted metabolomics analysis will be described with special emphasis on mass spectrometry-based techniques. Particular attention is given to approaches which can be employed for the annotation of unknown compounds. In the second part, the different experimental approaches aimed at tissue-specific or subcellular analysis of metabolites are discussed including a range of non-mass spectrometry based technologies.
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Affiliation(s)
- Stephan Kueger
- Botanical Institute II, University of Cologne, Zülpicherstrasse 47b, Cologne, Germany
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