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Updated: Jul 30, 2025

Autofluorescence Imaging to Evaluate Red Algae Physiology

Autofluorescence Imaging to Evaluate Red Algae Physiology

Published on: February 17, 2023

Quantitative elemental imaging in eukaryotic algae.

Stefan Schmollinger^1,2, Si Chen³, Sabeeha S Merchant^1,2

¹California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA.

Metallomics : Integrated Biometal Science

|May 15, 2023

Summary

This summary is machine-generated.

This study details a method for analyzing elemental distribution in single algal cells using X-ray fluorescence microscopy (XFM). This technique provides insights into cellular metabolism, nutritional status, and environmental roles of these vital photosynthetic organisms.

Keywords:

Chlamydomonas SXRF XRF copper heavy metal detoxification iron

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Area of Science:

Biochemistry
Microbiology
Microscopy

Background:

Organisms utilize elemental composition for biochemical diversity and metabolic functions.
Trace elements are crucial cofactors for enzymes, influencing metabolism, nutrition, and development.
Photosynthetic eukaryotes, like algae, are vital primary producers with significant environmental and biotechnological relevance.

Purpose of the Study:

To present a workflow for quantitative, single-cell elemental distribution analysis in eukaryotic algae.
To highlight the application of X-ray fluorescence microscopy (XFM) for non-destructive elemental imaging.
To enable a deeper understanding of trace element roles in algal metabolism and function.

Main Methods:

Utilized X-ray fluorescence microscopy (XFM) for elemental imaging.
Focused on quantitative analysis of elemental distribution at the subcellular level.
Applied the method to intact eukaryotic algal cells for non-destructive assessment.

Main Results:

Demonstrated the capability of XFM for high-resolution elemental mapping in single cells.
Provided a quantitative description of elemental quotas and intracellular distribution.
Established a workflow applicable to various trace element analyses in algae.

Conclusions:

Quantitative single-cell elemental analysis using XFM is a powerful tool for understanding algal biology.
This method supports research in biotechnology, carbon sequestration, and bioremediation.
Insights into elemental distribution are key to optimizing algal applications and understanding their environmental impact.