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Spatial extent of dysbiosis in the branching coral Pocillopora damicornis during an acute disease outbreak
oleh: Austin Greene, Tess Moriarty, William Leggatt, Tracy D. Ainsworth, Megan J. Donahue, Laurie Raymundo
Format: | Article |
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Diterbitkan: | Nature Portfolio 2023-10-01 |
Deskripsi
Abstract Globally, coral reefs face increasing disease prevalence and large-scale outbreak events. These outbreaks offer insights into microbial and functional patterns of coral disease, including early indicators of disease that may be present in visually-healthy tissues. Outbreak events also allow investigation of how reef-building corals, typically colonial organisms, respond to disease. We studied Pocillopora damicornis during an acute tissue loss disease outbreak on Guam to determine whether dysbiosis was present in visually-healthy tissues ahead of advancing disease lesions. These data reveal that coral fragments with visual evidence of disease are expectedly dysbiotic with high microbial and metabolomic variability. However, visually-healthy tissues from the same colonies lacked dysbiosis, suggesting disease containment near the affected area. These results challenge the idea of using broad dysbiosis as a pre-visual disease indicator and prompt reevaluation of disease assessment in colonial organisms such as reef-building corals.