DNA/RNA analysis of phytoplankton by flow cytometry

Area of Science:

• Microbiology
• Molecular Biology
• Biochemistry

Background:

• Flow cytometry has increasingly integrated molecular and biochemical techniques over the last decade.
• The application of flow cytometry in microbiology is becoming more established and sophisticated.

Purpose of the Study:

• To define criteria for evaluating DNA and RNA in phytoplankton using flow cytometry.
• To present methods applicable to various organisms beyond phytoplankton.
• To discuss techniques for cell cycle analysis and specific taxa discrimination.

Main Methods:

• Utilizing flow cytometry combined with molecular and biochemical assays.
• Evaluating DNA and RNA content in phytoplankton.
• Employing fluorescent oligonucleotide probes targeting 18S ribosomal RNA (rRNA).

Main Results:

• Established criteria for DNA and RNA evaluation in phytoplankton.
• Demonstrated the applicability of methods to diverse organisms.
• Outlined procedures for cell cycle assessment and taxonomic identification.

Conclusions:

• Flow cytometry is a powerful tool for microbial analysis, including nucleic acid quantification.
• The presented methods facilitate detailed analysis of microbial populations, including cell cycle and taxonomic composition.
• Fluorescent oligonucleotide probes offer precise methods for identifying specific microbial taxa.