Molecular characterization of an Endozoicomonas-like species associated with mass mortalities of king scallop Pecten maximus L. in United Kingdom

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Marine Environmental Data & Information Network
Last updated:
14 September 2024
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Summary

The king scallop Pecten maximus L. is the fastest growing fishery in the UK and currently the second most valuable. Mass mortality events in scallops have been reported associated with rickettsia-like organisms (RLOs) world-wide, however the causative agents were uncharacterised. In May 2013 and 2014 two mass mortality events affecting king scallops were recorded in the Lyme Bay Marine Protected Area (MPA) South West England. Histopathological examination showed gill epithelial tissue infected with RLO at varying intensity. Ultrastructural examination confirmed the intracellular location in affected epithelial cells. Partial 16S rDNA sequences of a putative RLO obtained from infected king scallop gill samples collected from both mortality events were identical and had 99.4% identity to 16S rDNA sequences obtained from Candidatus endonucleobacter bathymodioli and 95% with Endozoicomonas spp. In situ hybridisation assays using 16S rDNA probes confirmed the presence of the sequenced RLO gene in the gill tissues. Additional DNA sequences of the bacterium were obtained using high-throughput (Illumina) sequencing and bioinformatic analysis identified over 1000 genes with high similarity, ranging from 77-87% identity, to genes from Endozoicomonas spp.

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Added to data.gov.uk
2024-09-13
Access contraints
Not specified
Harvest GUID
CEFASdb729d01-5ce7-466e-9a83-81ccde2108b6
Extent
Latitude: 50.75° to 50.25°
Longitude: -3.50° to -2.00°
Spatial reference system
Dataset reference date
2017-05-19 (publication)
2024-09-13 (revision)
2017-05-05 (creation)
Frequency of update
notPlanned
Responsible party
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) (originator, custodian, distributor)
ISO 19139 resource type
dataset
Metadata language
eng
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