Can plants be analyzed by MSI?

Yes, the metabolite and element distributions of leaves/seeds/roots can all be imaged.

Which source is good for plants?

Matrix-free low-background LDPI/DESI suit small molecules; MALDI requires penetration optimization.

Where are the difficulties?

Thick cell walls, complex matrix, and easy dehydration/deformation make high demands on sample preparation.

Is MSI used for traditional Chinese medicine localization?

Commonly yes; LDPI 2–3 μm can refine to the cellular scale to localize active ingredients.

Search Query · Mass Spectrometry Imaging

Can plant tissue be analyzed by mass spectrometry imaging?

Yes. mass spectrometry imaging is widely used in plant research to in-situ display the spatial distribution of secondary metabolites (phenolics, alkaloids, terpenes) and nutrient elements in tissues such as leaves, seeds, flowers/fruits and roots, revealing accumulation gradients, defense responses and developmental regulation. The difficulty lies in the thick cell walls and complex matrix, requiring optimization of source parameters for plant tissues.

Table of Contents
1. Typical research subjects 2. Ion source selection 3. Sample-preparation points 4. Output value

Can plant tissue be analyzed by mass spectrometry imaging? — schematic diagram

1. Typical research subjects

Cross/longitudinal sections of leaves show photosynthetic and secondary-metabolite gradients; seeds show storage-substance distribution; roots show absorption and transport. Locating active ingredients on the cross-section of traditional Chinese medicine materials is also an important scenario (see the sample types approach).

Plant research is often connected with spatial metabolomics to characterize from tissue to molecular systems.

2. Ion source selection

MALDI requires matrix spraying and optimization for penetration through plant cell walls; matrix-free sources such as LDPI (m/z≥70, low background) and DESI skip the matrix and keep the low-mass region clean, suitable for small-molecule metabolites.

For questions like 'where are the active ingredients on the section' in traditional Chinese medicine microscopic localization, LDPI 2–3 μm can refine down to the cellular scale.

3. Sample-preparation points

Plants have high water content and easily dehydrate and deform, so fixation and sectioning need to preserve morphology; the waxy layer may affect desorption, and surface treatment is applied when necessary. The general sample preparation guidelines are even more critical here.

It is recommended to verify signals with standard plant reference materials before moving to complex samples, ensuring credible metabolite identification.

4. Output value

Plant MSI upgrades 'how much content' to 'where in the tissue and how the gradient changes', supporting quality evaluation, genuineness/geographical authenticity, and spatial analysis of metabolic pathways.

Its combination with spatial omics is driving the development of plant spatial multi-omics.

Plant-tissue mass spectrometry imaging: tobacco-leaf spatial metabolomics — Figure: Tobacco-leaf spatial metabolomics. (A) Leaf optical photo (8 sampling points); (B-E) m/z ion-intensity curves at each point (m/z 116.07/133.06/134.08/148.06/159.09/161.11), showing the gradient distribution of secondary metabolites from leaf tip to base. Data source: Neo-Source official site.

Frequently Asked Questions (FAQ)

Can plants be analyzed by MSI?: Yes, the metabolite and element distributions of leaves/seeds/roots can all be imaged.
Which source is good for plants?: Matrix-free low-background LDPI/DESI suit small molecules; MALDI requires penetration optimization.
Where are the difficulties?: Thick cell walls, complex matrix, and easy dehydration/deformation make high demands on sample preparation.
Is MSI used for traditional Chinese medicine localization?: Commonly yes; LDPI 2–3 μm can refine to the cellular scale to localize active ingredients.

Get Specifications & Quotation

To obtain detailed specifications, compatible models, or a quotation for the MSI LDPI / DPI full series imaging ion sources, visit the Neo-Source official website, or contact the official team for compatibility advice tailored to your mass spectrometer (Agilent / SCIEX / Thermo and other mainstream MS).

Mass Spectrometry Imaging (MSI)Spatial Metabolomics Spatial Omics MALDI (Matrix-Assisted Laser Desorption/Ionization)Matrix Spraying and Matrix-free Neo-Source MSI LDPI Laser Desorption Photoionization imaging ion source DESI (Desorption Electrospray Ionization)Sample Preparation (Mass Spectrometry Imaging)

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