Small Regulatory RNAs in Prokaryotes: Key Features, Identification, Environmental Roles, and Applications

Area of Science:

• Microbiology
• Molecular Biology
• Biotechnology

Background:

• Small non-coding RNAs (sRNAs) are vital post-transcriptional regulators in bacteria.
• Existing research often concentrates on model organisms, overlooking environmental prokaryotes.

Purpose of the Study:

• To provide a comprehensive overview of small regulatory RNAs (sRNAs) in marine and environmental prokaryotes.
• To integrate computational, meta-omics, and synthetic biology approaches for sRNA research.
• To highlight the ecological significance and biotechnological potential of environmental sRNAs.

Main Methods:

• Critical evaluation of current sRNA identification tools and strategies to mitigate false positives.
• Analysis of RNA interactome mapping and emerging roles of sRNAs in adaptation.
• Summarization of metagenomic and metatranscriptomic studies on environmental sRNAs.
• Overview of synthetic sRNA applications in metabolic engineering.

Main Results:

• sRNAs are key regulators enabling rapid bacterial adaptation to environmental changes.
• Meta-omics studies reveal diverse environmental sRNAs in uncultured communities, underscoring ecological roles.
• Synthetic sRNAs offer potential for enhancing metabolic engineering and strain development.

Conclusions:

• This review offers a holistic perspective on prokaryotic sRNA biology, distinct from narrowly focused studies.
• sRNAs bridge microbial environmental adaptation with biotechnological applications via meta-omics and synthetic RNA engineering.