Publications by authors named "L Deignan"

Article Synopsis
  • - Two specific strains (SCP14 and SCP15) were extracted from coral remains in Singapore, particularly in high-temperature conditions.
  • - The genomes of these strains were sequenced, which means their genetic makeup was analyzed and recorded.
  • - The genetic information revealed important elements that contribute to the health of coral, especially when they face temperature-related stress.
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A sp. was isolated from the skeleton of the heat resilient coral . Genome analysis revealed the presence of the complete denitrification pathway and potential dimethylsulfoniopropionate metabolism which enhance coral resilience and production of tropodithietic acid, an antibiotic implicated in host defense.

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Allelopathic chemicals facilitated by the direct contact of macroalgae with corals are potentially an important mechanism mediating coral-macroalgal interactions, but only a few studies have explored their impacts on coral health and microbiomes and the coral's ability to recover. We conducted a field experiment on an equatorial urbanized reef to assess the allelopathic effects of four macroalgal species ( sp., , and ) on the health and microbiomes of three coral species (, and ).

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Marine sponges are known to host a complex microbial consortium that is essential to the health and resilience of these benthic invertebrates. These sponge-associated microbes are also an important source of therapeutic agents. The Neptune's Cup sponge, , once believed to be extinct, was rediscovered off the southern coast of Singapore in 2011.

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As corals continue to decline globally, particularly due to climate change, it is vital to understand the extent to which their microbiome may confer an adaptive resilience against environmental stress. Corals that survive on the urban reefs of Singapore are ideal candidates to study the association of scleractinians with their microbiome, which in turn can inform reef conservation and management. In this study, we monitored differences in the microbiome of Pocillopora acuta colonies reciprocally transplanted between two reefs, Raffles and Kusu, within the Port of Singapore, where corals face intense anthropogenic impacts.

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