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Updated: May 2, 2026
09:49
Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
Published on: October 31, 2019
23.1K
Microbial living materials promote coral larval settlement.
Natalie Levy1,2, Samapti Kundu1,2, Marnie Freckelton3
1Scripps Institution of Oceanography, University of California San Diego, 8622 Kennel Way, La Jolla, CA 92037, USA.
PNAS Nexus
|September 11, 2025
Summary
Coral reef restoration is boosted by a new Bacterial Reef Ink (Brink). This living material significantly increases coral larval settlement, aiding in the recovery of vital marine ecosystems.
Area of Science:
- Marine Biology
- Materials Science
- Ecosystem Restoration
Background:
- Coral reefs face global decline, threatening ecosystem services.
- Low coral recruitment success hinders restoration and reduces genetic diversity.
Purpose of the Study:
- To introduce a novel living material, Bacterial Reef Ink (Brink), to enhance coral larval settlement.
- To assess Brink's efficacy in facilitating coral population recovery.
Main Methods:
- Developed Brink, a photopolymerized living material with settlement-inducing bacteria ( *Cellulophaga lytica*, *Thalassotalea euphylliae*).
- Applied Brink to restoration substrates for settlement assays with *Montipora capitata* and *Pocillopora acuta* corals.
- Utilized light-assisted 3D bioprinting for patterned Brink application.
Main Results:
- Brink-coated substrates increased coral larval settlement >5-fold compared to controls.
- Demonstrated successful application of Brink for both broadcast spawning and brooding coral species.
- Showcased Brink's adaptability for flat coating and 3D patterned applications.
Conclusions:
- Bacterial Reef Ink (Brink) is a promising tool for enhancing coral larval settlement and reef restoration.
- Functional living materials offer innovative solutions for coral reef engineering and rehabilitation.
- This approach supports efforts to improve coral reef resilience and ecosystem functions.
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