Calcifying Coccolithophore: An Evolutionary Advantage Against Extracellular Oxidative Damage.
Small (Weinheim an der Bergstrasse, Germany)(2023)
摘要
The evolutionary advantages afforded by phytoplankton calcification remain enigmatic. In this work, fluoroelectrochemical experiments reveal that the presence of a CaCO shell of a naturally calcifying coccolithophore, Coccolithus braarudii, offers protection against extracellular oxidants as measured by the time required for the switch-off in their chlorophyll signal, compared to the deshelled equivalents, suggesting the shift toward calcification offers some advantages for survival in the surface of radical-rich seawater.
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关键词
calcium carbonate, coccolithophore, fluoroelectrochemical measurements, oxidative damage, reactive oxygen species
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