Chemical Induction of Coral Larval Metamorphosis
Author Information
Author(s): Tebben Jan, Tapiolas Dianne M., Motti Cherie A., Abrego David, Negri Andrew P., Blackall Linda L., Steinberg Peter D., Harder Tilmann
Primary Institution: School of Biological, Earth and Environmental Sciences and Centre for Marine Bio-Innovation, University of New South Wales, Sydney, Australia
Hypothesis
Can bacterial metabolites induce larval metamorphosis in corals?
Conclusion
The study identified tetrabromopyrrole (TBP) as the first chemical signal from bacteria that induces larval metamorphosis in the coral Acropora millepora.
Supporting Evidence
- Three bacterial strains induced metamorphosis in 100% of exposed coral larvae.
- The lowest bacterial density to induce significant metamorphosis was 7200 cells mm−2.
- Synthetic TBP induced metamorphosis in coral larvae after 6 hours.
Takeaway
Scientists found a special chemical from bacteria that helps baby corals grow up and settle down on the ocean floor.
Methodology
The study involved isolating bacterial strains from coralline algae and testing their ability to induce metamorphosis in coral larvae through bioassays.
Limitations
The ecological role of TBP in natural settings remains uncertain due to unknown concentrations in the field.
Statistical Information
P-Value
0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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