Autofluorescence Imaging to Evaluate Red Algae Physiology

Teresa Coronado-Parra; M&#243;nica Rold&#225;n; Marina Aboal

doi:10.3791/64533

Imagem de autofluorescência para avaliar a fisiologia das algas vermelhas

JoVE Journal
Biology

A subscription to JoVE is required to view this content. Sign in or start your free trial.

JoVE Journal Biology

Autofluorescence Imaging to Evaluate Red Algae Physiology

Imagem de autofluorescência para avaliar a fisiologia das algas vermelhas

Full Text

1,892 Views

05:54 min

February 17, 2023

DOI: 10.3791/64533-v

Teresa Coronado-Parra¹, Mónica Roldán^2,3, Marina Aboal⁴

¹Microscopy Core Facility, Technological Research and Scientific Area (ACTI),University of Murcia, ²Confocal Microscopy and Cellular Imaging Unit, Genetic and Molecular Medicine Department, Pediatric Institute for Rare Diseases,Hospital Sant Joan de Déu, ³Research Institute Sant Joan de Déu, Esplugues de Llobregat, Spain 4Algology Laboratory, Biology Faculty,University of Murcia, ⁴Algology Laboratory, Biology Faculty,University of Murcia

Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

This protocol outlines a non-destructive method for evaluating phycobiliprotein changes in red algae using autofluorescence imaging. It is particularly useful for studying cellular adaptations in extreme environments where traditional culturing methods are challenging.

Key Study Components

Area of Science

Neuroscience
Biology
Ecology

Background

Microalgae often inhabit extreme environments.
Traditional laboratory growth methods may not be effective.
Autofluorescence imaging provides a label-free analysis.
This technique minimizes artifacts by avoiding chemical compounds.

Purpose of Study

To analyze the ecological behavior of microalgae.
To understand adaptations to extreme habitats.
To develop methods for monitoring autotroph performance.

Methods Used

Preparation of inoculum from agar culture to seawater medium.
Maintenance of cultures under specific light and temperature conditions.
Use of confocal microscopy for imaging.
Evaluation of pigment autofluorescence for analysis.

Main Results

Successful imaging of phycobiliproteins in red algae.
Insights into the ecological adaptations of microalgae.
Demonstrated the effectiveness of non-invasive techniques.
Potential applications in monitoring environments like touristic caves.

Conclusions

Autofluorescence imaging is a valuable tool for studying microalgae.
This method can aid in understanding ecological dynamics.
It opens avenues for further research in extreme environments.

Frequently Asked Questions

What is autofluorescence imaging?

Autofluorescence imaging is a technique that uses the natural fluorescence of pigments in organisms to visualize and analyze biological samples without the need for chemical labels.

Why is this method considered non-destructive?

This method does not involve chemical treatments that could alter or damage the biological samples, allowing for the preservation of the cells for further analysis.

What are phycobiliproteins?

Phycobiliproteins are water-soluble proteins that are important for photosynthesis in certain algae, contributing to their color and light-harvesting capabilities.

How does this study benefit ecological research?

By providing insights into the adaptations of microalgae in extreme environments, this study can inform conservation efforts and ecological monitoring strategies.

What are the implications for tourism in caves?

Understanding the ecological dynamics of microalgae can help in the preservation of cave environments, which are often sensitive to changes and human activity.

Can this method be applied to other organisms?

Yes, while this study focuses on red algae, autofluorescence imaging can be adapted for use with various biological samples across different species.

O presente protocolo descreve imagens de autofluorescência passo a passo e avaliação de alterações ficobiliproteicas em algas vermelhas com base na análise espectral. Este é um método livre de rótulos e não destrutivo para avaliar a adaptação celular a habitats extremos, quando apenas material escasso está disponível e as células crescem lentamente, ou não, em condições de laboratório.

Este protocolo microscópico confocal permitirá a interpretação do comportamento ecológico e adaptações de microalgas de ambientes extremos com crescimento lento em laboratório utilizando a autofluorescência de seus pigmentos. Esta técnica não é invasiva e minimiza os artefatos, pois os compostos químicos não são usados. Conhecer o desempenho dos pigmentos dos autótrofos e o crescimento correspondente permitirá a concepção dos métodos de controle, que é o maior interesse para cavernas turísticas e monumentos arquitetônicos.

Comece a preparar o inóculo de Chroothece mobilis transferindo-o da cultura em ágar para o meio de água do mar ou meio líquido SWES. Manter todas as culturas por duas semanas com um período fotográfico escuro de 16 a 8 a 20 graus Celsius sob uma baixa intensidade de luz branca e sem tremer até que a densidade celular desejada seja obtida. Use um mililitro da cultura de fase exponencial com cinco vezes 10 a terceira célula por mililitro de densidade celular para inocular em uma placa de 24 poços para diferentes experimentos.

View the full transcript and gain access to thousands of scientific videos