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Title: Toward Mass Spectrometry Imaging in the Metabolomics Scale: Increasing Metabolic Coverage Through Multiple On-Tissue Chemical Modifications

Journal Article · · Frontiers in Plant Science

Exploring the metabolic differences directly on tissues is essential for the comprehensive understanding of how multicellular organisms function. Mass spectrometry imaging (MSI) is an attractive technique toward this goal; however, MSI in metabolomics scale has been hindered by multiple limitations. This is most notable for single cell level high-spatial resolution imaging because of the limited number of molecules in small sampling size and the low ionization yields of many metabolites. Several on-tissue chemical derivatization approaches have been reported to increase MSI signals of targeted compounds, especially in matrix-assisted laser desorption/ionization (MALDI)- MSI. Herein, we adopt a combination of chemical derivatization reactions, to selectively enhance metabolite signals of a specific functional group for each consecutive tissue section. Three well-known on-tissue derivatization methods were used as a proof of concept experiment: coniferyl aldehyde for primary amines, Girard’s reagent T for carbonyl groups, and 2-picolylamine for carboxylic acids. This strategy was applied to the cross-sections of leaves and roots from two different maize genotypes (B73 and Mo17), and enabled the detection of over six hundred new unique metabolite features compared to without modification. Statistical analysis indicated quantitative variation between metabolites in the tissue sections, while MS images revealed differences in localization of these metabolites. Combined, this untargeted approach facilitated the visualization of various classes of compounds, demonstrating the potential for untargeted MSI in the metabolomics scale.

Research Organization:
Iowa State Univ., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); American Chemical Society (ACS); Society for Analytical Chemists of Pittsburgh (SACP)
OSTI ID:
1542477
Alternate ID(s):
OSTI ID: 1903827
Journal Information:
Frontiers in Plant Science, Vol. 10; ISSN 1664-462X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

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Erratum to: Microscopic visualization of testosterone in mouse testis by use of imaging mass spectrometry journal September 2016
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Targeted Multiplex Imaging Mass Spectrometry in Transmission Geometry for Subcellular Spatial Resolution journal February 2013
Laser Beam Filtration for High Spatial Resolution MALDI Imaging Mass Spectrometry journal May 2013
Implementation of a Gaussian Beam Laser and Aspheric Optics for High Spatial Resolution MALDI Imaging MS journal April 2014
Pyrylium Salts as Reactive Matrices for MALDI-MS Imaging of Biologically Active Primary Amines journal March 2015
Matrix Recrystallization for MALDI-MS Imaging of Maize Lipids at High-Spatial Resolution journal June 2016
Sputter-Coated Metal Screening for Small Molecule Analysis and High-Spatial Resolution Imaging in Laser Desorption Ionization Mass Spectrometry journal October 2018
Comparing two metabolic profiling approaches (liquid chromatography and gas chromatography coupled to mass spectrometry) for extra-virgin olive oil phenolic compounds analysis: A botanical classification perspective journal January 2016
Optimization and Comparison of Multiple MALDI Matrix Application Methods for Small Molecule Mass Spectrometric Imaging journal October 2014
In Situ Analysis of Small Populations of Adherent Mammalian Cells Using Laser Ablation Electrospray Ionization Mass Spectrometry in Transmission Geometry journal November 2015
On-Tissue Derivatization via Electrospray Deposition for Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging of Endogenous Fatty Acids in Rat Brain Tissues journal May 2016
Sodium-Doped Gold-Assisted Laser Desorption Ionization for Enhanced Imaging Mass Spectrometry of Triacylglycerols from Thin Tissue Sections journal May 2016
Derivatization Strategies for the Detection of Triamcinolone Acetonide in Cartilage by Using Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging journal December 2016
High Spatial Resolution Imaging of Mouse Pancreatic Islets Using Nanospray Desorption Electrospray Ionization Mass Spectrometry journal April 2018
Efficient Total Synthesis of 12-oxo-PDA and OPC-8:0 journal October 2003
Atmospheric pressure MALDI mass spectrometry imaging of tissues and cells at 1.4-μm lateral resolution journal November 2016
Microencapsulated algal feeds as a sustainable replacement diet for broodstock in commercial bivalve aquaculture journal July 2020
Multi-matrix, dual polarity, tandem mass spectrometry imaging strategy applied to a germinated maize seed: toward mass spectrometry imaging of an untargeted metabolome journal January 2015
The Metabolism of Acetaldehyde by Plant Tissues journal January 1968
Amino Acid Export in Plants: A Missing Link in Nitrogen Cycling journal May 2011
Maize 9-Lipoxygenase ZmLOX3 Controls Development, Root-Specific Expression of Defense Genes, and Resistance to Root-Knot Nematodes journal January 2008
Spatial Mapping and Profiling of Metabolite Distributions during Germination journal June 2017
Wax matters: absence of very-long-chain aldehydes from the leaf cuticular wax of the glossy11 mutant of maize compromises the prepenetration processes of Blumeria graminis: Maize glossy11 compromises powdery mildew prepenetration journal May 2011
High spatial resolution mass spectrometry imaging reveals the genetically programmed, developmental modification of the distribution of thylakoid membrane lipids among individual cells of maize leaf journal February 2017
Genome-wide association study for kernel composition and flour pasting behavior in wholemeal maize flour journal April 2019
Metabolomic Profiling of the Nectars of Aquilegia pubescens and A. Canadensis journal May 2015
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Synthesis and Functions of Jasmonates in Maize journal November 2016
Changes in Polar Lipid Composition in Maize Seedlings Induced by Cadmium Stress journal February 2007