Interactive comment on “Influence of CO2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta)” by M. N. Müller et al
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The authors report on experimental results of the coccolithophore Emiliania huxleyi that was grown under nutrient replete (+N) and nitrogen limited (-N) conditions, both under a similar range of pCO2 levels / CO2 concentrations in the culture media. Each set of experiments was subjected to three concentrations of CO2 (corresponding to a "preindustrial" lower-than-modern pCO2 of ∼200-280 μatm, and two higher-than-modern levels, ∼450 and 1000 μatm).
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Interactive comment on “Influence of CO2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta)” by M. N. Müller et al
The authors report on experimental results of the coccolithophore Emiliania huxleyi that was grown under nutrient replete (+N) and nitrogen limited (-N) conditions, both under a similar range of pCO2 levels / CO2 concentrations in the culture media. Each set of experiments was subjected to three concentrations of CO2 (corresponding to a "preindustrial" lower-than-modern pCO2 of ∼200-280 μatm, a...
متن کاملInteractive comment on “Influence of CO2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta)” by M. N. Müller et al
The sensitivity of calcite producing plankton to pCO2 is an important topic within the current debate over the fate of oceanic carbonate production in a high CO2 and warming ocean. Müller et al. present results from a series of culture experiments of a strain of Emiliania huxleyi under different pCO2 levels and conditions of nitrogen availability (N-, N+). The focus of this manuscript is on cha...
متن کاملInteractive comment on “Influence of CO2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta)” by M. N. Müller et al
The sensitivity of calcite producing plankton to pCO2 is an important topic within the current debate over the fate of oceanic carbonate production in a high CO2 and warming ocean. Müller et al. present results from a series of culture experiments of a strain of Emiliania huxleyi under different pCO2 levels and conditions of nitrogen availability (N-, N+). The focus of this manuscript is on cha...
متن کاملThe effect of nitrate and phosphate availability on Emiliania huxleyi (NZEH) physiology under different CO2 scenarios
Growth and calcification of the marine coccolithophorid Emiliania huxleyi is affected by ocean acidification and macronutrients limitation and its response varies between strains. Here we investigated the physiological performance of a highly calcified E. huxleyi strain, NZEH, in a multiparametric experiment. Cells were exposed to different CO2 levels (ranging from 250 to 1314 μatm) under three...
متن کاملInfluence of cell cycle phase on calcification in the coccolithophore Emiliania huxleyi
Calcification of the cosmopolitan coccolithophore species Emiliania huxleyi was investigated in relation to the cell division cycle with the use of batch cultures. With a 12 : 12 h light : dark cycle, the population was synchronised to undergo division as a cohort, simultaneously passing through the G1 (assimilation), S (DNA replication), and G2+M (cell division and mitosis) phases. Cell divisi...
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تاریخ انتشار 2012