Morphological, elemental, and boron isotopic insights into pathophysiology of diseased coral growth anomalies.

Autor: Andersson ER; Grice Marine Laboratory, Department of Biology, College of Charleston, 205 Fort Johnson Rd., Charleston, SC, 29412, USA. anderssoner@g.cofc.edu.; Marine Biochemical Sciences, Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, SC, 29412, USA. anderssoner@g.cofc.edu., Stewart JA; Marine Biochemical Sciences, Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, SC, 29412, USA.; School of Earth Sciences, University of Bristol, Queens Road, Bristol, BS8 1RJ, UK., Work TM; U.S. Geological Survey National Wildlife Health Center, Honolulu Field Station, Honolulu, HI, 96850, USA., Woodley CM; National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Sciences, Hollings Marine Laboratory, Charleston, SC, 29412, USA., Schock TB; Marine Biochemical Sciences, Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, SC, 29412, USA. tracey.schock@nist.gov., Day RD; Grice Marine Laboratory, Department of Biology, College of Charleston, 205 Fort Johnson Rd., Charleston, SC, 29412, USA.; Marine Biochemical Sciences, Chemical Sciences Division, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, SC, 29412, USA.; Marine Science and Nautical Training Academy (MANTA), 520 Folly Rd., Charleston, SC, 29412, USA.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2020 May 19; Vol. 10 (1), pp. 8252. Date of Electronic Publication: 2020 May 19.
DOI: 10.1038/s41598-020-65118-6
Abstrakt: Coral growth anomalies (GAs) are tumor-like lesions that are detrimental to colony fitness and are commonly associated with high human population density, yet little is known about the disease pathology or calcification behavior. SEM imagery, skeletal trace elements and boron isotopes (δ 11 B) have been combined as a novel approach to study coral disease. Low Mg/Ca, and high U/Ca, Mo/Ca, and V/Ca potentially suggest a decreased abundance of "centers of calcification" and nitrogen-fixation in GAs. Estimates of carbonate system parameters from δ 11 B and B/Ca measurements indicate reduced pH (-0.05 units) and [CO 3 2- ] within GA calcifying fluid. We theorize GAs re-allocate resources away from internal pH upregulation to sustain elevated tissue growth, resulting in a porous and fragile skeleton. Our findings show that dystrophic calcification processes could explain structural differences seen in GA skeletons and highlight the use of skeletal geochemistry to shed light on disease pathophysiology in corals.
Databáze: MEDLINE
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