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Wound repair in Pocillopora

July 14, 2016

Corals routinely lose tissue due to causes ranging from predation to disease. Tissue healing and regeneration are fundamental to the normal functioning of corals, yet we know little about this process. We described the microscopic morphology of wound repair in Pocillopora damicornis. Tissue was removed by airbrushing fragments from three healthy colonies, and these were monitored daily at the gross and microscopic level for 40 days. Grossly, corals healed by Day 30, but repigmentation was not evident at the end of the study (40 d). On histology, from Day 8 onwards, tissues at the lesion site were microscopically indistinguishable from adjacent normal tissues with evidence of zooxanthellae in gastrodermis. Inflammation was not evident. P. damicornis manifested a unique mode of regeneration involving projections of cell-covered mesoglea from the surface body wall that anastomosed to form gastrovascular canals.

Publication Year 2016
Title Wound repair in Pocillopora
DOI 10.1016/j.jip.2016.07.002
Authors Jenny Carolina Rodríguez-Villalobos, Thierry M. Work, Luis Eduardo Calderon-Aguileraa
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Invertebrate Pathology
Index ID 70174680
Record Source USGS Publications Warehouse
USGS Organization National Wildlife Health Center