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The chemical cue tetrabromopyrrole from a biofilm bacterium induces settlement of multiple Caribbean corals
TLDR
The role of microbial biofilms is demonstrated in inducing larval settlement with the Caribbean coral Porites astreoides and the first instance of a chemical cue isolated from a marine biofilm bacterium that induces complete settlement (attachment and metamorphosis) of Caribbean coral larvae is reported.
Crustose coralline algal species host distinct bacterial assemblages on their surfaces
TLDR
Crustose coralline algae species that facilitate larval settlement in multiple corals had higher abundances of OTUs related to bacteria that inhibit the growth and/or biofilm formation of coral pathogens and cyanobacteria, and Coral larvae may be able to use the observed differences in bacterial community composition on CCA species to assess the suitability of these substrata for settlement and selectively settle on C CA species that contain beneficial bacteria.
Induction of Larval Settlement in the Reef Coral Porites astreoides by a Cultivated Marine Roseobacter Strain
Successful larval settlement and recruitment by corals is critical for the survival of coral reef ecosystems. Several closely related strains of γ-proteobacteria have been identified as cues for
The green alga Dicytosphaeria ocellata and its organic extracts alter natural bacterial biofilm communities
TLDR
Methanol extracts of D. ocellata significantly affected the abundance of bacteria and composition of the bacterial community on Phytagel™ plates when compared to solvent controls, suggesting that the alga regulates theacterial community by producing active metabolites.
The green macroalga Dictyosphaeria ocellata influences the structure of the bacterioplankton community through differential effects on individual bacterial phylotypes.
TLDR
The effects of the green alga Dictyosphaeria ocellata on the bacterioplankton community in field enclosure experiments and on individual, naturally co-occurring bacterial strains in laboratory co-culture experiments are examined.
Amantelides A and B, Polyhydroxylated Macrolides with Differential Broad-Spectrum Cytotoxicity from a Guamanian Marine Cyanobacterium.
TLDR
Cytotoxicity-guided fractionation of a Guamanian cyanobacterial collection yielded the new compounds amantelides A and B, characterized by a 40-membered macrolactone ring consisting of a 1,3-diol and contiguous 1,5- diol units and a tert-butyl substituent.
Differential larval settlement responses of Porites astreoides and Acropora palmata in the presence of the green alga Halimedaopuntia
TLDR
The results suggest that the presence of macroalgae on impacted reefs can have unexpected repercussions for coral recruitment and highlight discrepancies in settlement specificity between corals with distinct life history strategies.
Macroalgae may interrupt important cues for coral larval settlement
TLDR
It is demonstrated that macroalgae can alter biofilm bacterial communities, some of which may provide chemical cues necessary for coral larval settlement.
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