Bioprospecting Sponge-Associated Microbes for Antimicrobial Compounds.

Area of Science:

• Marine microbiology
• Natural products chemistry
• Drug discovery

Background:

• Sponges are rich sources of bioactive compounds, with many antimicrobials originating from associated bacteria and fungi.
• Understanding these microbial symbionts is crucial for discovering novel therapeutic agents.

Purpose of the Study:

• To provide a comprehensive review of antimicrobial compounds produced by sponge-associated microbes.
• To categorize these compounds by their activity (antiviral, antibacterial, antifungal, antiprotozoal).
• To identify prominent microbial genera and specific compounds with therapeutic potential.

Main Methods:

• Literature review and synthesis of existing research on sponge-associated microbial antimicrobials.
• In vitro activity data analysis for identified compounds and their targets.
• Identification and categorization of microbial genera and species producing these compounds.

Main Results:

• Over 35 bacterial and 12 fungal genera associated with sponges produce antimicrobials.
• Key producers include Streptomyces, Pseudovibrio, Bacillus, Aspergillus, and Penicillium.
• Identified compounds target viruses (HIV-1, influenza), bacteria (Gram-positive, E. coli, C. trachomatis), parasites (Plasmodium, Leishmania, Trypanosoma), and fungi (Candida, dermatophytes).

Conclusions:

• Sponge-associated microbes represent a significant, largely untapped resource for novel antimicrobial drug discovery.
• Further exploration, including culture-independent methods, can unlock the full potential of these microbial pathways.
• Targeted research into specific compounds and producers can accelerate the development of new treatments for infectious diseases.