Reduced H+ channel activity disrupts pH homeostasis and calcification in coccolithophores at low ocean pH
DM Kottmeier, A Chrachri, G Langer… - Proceedings of the …, 2022 - National Acad Sciences
Coccolithophores are major producers of ocean biogenic calcite, but this process is
predicted to be negatively affected by future ocean acidification scenarios. Since …
predicted to be negatively affected by future ocean acidification scenarios. Since …
[HTML][HTML] A Voltage-Gated H+ Channel Underlying pH Homeostasis in Calcifying Coccolithophores
Marine coccolithophorid phytoplankton are major producers of biogenic calcite, playing a
significant role in the global carbon cycle. Predicting the impacts of ocean acidification on …
significant role in the global carbon cycle. Predicting the impacts of ocean acidification on …
[HTML][HTML] A coastal coccolithophore maintains pH homeostasis and switches carbon sources in response to ocean acidification
Ocean acidification will potentially inhibit calcification by marine organisms; however, the
response of the most prolific ocean calcifiers, coccolithophores, to this perturbation remains …
response of the most prolific ocean calcifiers, coccolithophores, to this perturbation remains …
[HTML][HTML] A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework
Coccolithophores are a group of unicellular phytoplankton species whose ability to calcify
has a profound influence on biogeochemical element cycling. Calcification rates are …
has a profound influence on biogeochemical element cycling. Calcification rates are …
Negative effects of ocean acidification on calcification vary within the coccolithophore genus Calcidiscus
A large percentage of CO 2 emitted into the atmosphere is absorbed by the oceans, causing
chemical changes in surface waters known as ocean acidification (OA). Despite the high …
chemical changes in surface waters known as ocean acidification (OA). Despite the high …
Native-state imaging of calcifying and noncalcifying microalgae reveals similarities in their calcium storage organelles
Calcium storage organelles are common to all eukaryotic organisms and play a pivotal role
in calcium signaling and cellular calcium homeostasis. In most organelles, the …
in calcium signaling and cellular calcium homeostasis. In most organelles, the …
Coccolithophore calcification: Changing paradigms in changing oceans
C Brownlee, G Langer, GL Wheeler - Acta Biomaterialia, 2021 - Elsevier
Coccolithophores represent a major component of the marine phytoplankton and contribute
to the bulk of biogenic calcite formation on Earth. These unicellular protists produce minute …
to the bulk of biogenic calcite formation on Earth. These unicellular protists produce minute …
Phytoplankton calcification as an effective mechanism to alleviate cellular calcium poisoning
Marine phytoplankton have developed the remarkable ability to tightly regulate the
concentration of free calcium ions in the intracellular cytosol at a level of~ 0.1 μmol L− 1 in …
concentration of free calcium ions in the intracellular cytosol at a level of~ 0.1 μmol L− 1 in …
[HTML][HTML] Response of the calcifying coccolithophore Emiliania huxleyi to low pH/high pCO2: from physiology to molecular level
S Richier, S Fiorini, ME Kerros, P Von Dassow… - Marine biology, 2011 - Springer
The emergence of ocean acidification as a significant threat to calcifying organisms in
marine ecosystems creates a pressing need to understand the physiological and molecular …
marine ecosystems creates a pressing need to understand the physiological and molecular …
Calcifying Coccolithophore: An Evolutionary Advantage Against Extracellular Oxidative Damage
The evolutionary advantages afforded by phytoplankton calcification remain enigmatic. In
this work, fluoroelectrochemical experiments reveal that the presence of a CaCO3 shell of a …
this work, fluoroelectrochemical experiments reveal that the presence of a CaCO3 shell of a …