气候变化领域集成服务门户(CCPortal): No detectable effect of CO2 on elemental stoichiometry of Emiliania huxleyi in nutrient-limited, acclimated continuous cultures

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.845818
	No detectable effect of CO2 on elemental stoichiometry of Emiliania huxleyi in nutrient-limited, acclimated continuous cultures
	Engel; Anja; Cisternas Novoa; Carolina; Wurst; Mascha; Endres; Sonja; Tang; Tiantian; Schartau; Markus; Lee; Cindy
发布日期	2015-04-29
数据集类型	dataset
英文关键词	Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Chromista ; Emiliania huxleyi ; Haptophyta ; Laboratory experiment ; Laboratory strains ; Not applicable ; Pelagos ; Phytoplankton ; Single species
英文简介	Effects of CO2 concentration on elemental composition of the coccolithophore Emiliania huxleyi were studied in phosphorus-limited, continuous cultures that were acclimated to experimental conditions for 30 d prior to the first sampling. We determined phytoplankton and bacterial cell numbers, nutrients, particulate components like organic carbon (POC), inorganic carbon (PIC), nitrogen (PN), organic phosphorus (POP), transparent exopolymer particles (TEP), as well as dissolved organic carbon (DOC) and nitrogen (DON), in addition to carbonate system parameters at CO2 levels of 180, 380 and 750 µatm. No significant difference between treatments was observed for any of the measured variables during repeated sampling over a 14 d period. We considered several factors that might lead to these results, i.e. light, nutrients, carbon overconsumption and transient versus steady-state growth. We suggest that the absence of a clear CO2 effect during this study does not necessarily imply the absence of an effect in nature. Instead, the sensitivity of the cell towards environmental stressors such as CO2 may vary depending on whether growth conditions are transient or sufficiently stable to allow for optimal allocation of energy and resources. We tested this idea on previously published data sets where PIC and POC divided by the corresponding cell abundance of E. huxleyi at various pCO2 levels and growth rates were available.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217115
推荐引用方式 GB/T 7714	Engel,Anja,Cisternas Novoa,et al. No detectable effect of CO2 on elemental stoichiometry of Emiliania huxleyi in nutrient-limited, acclimated continuous cultures.2015-04-29.https://doi.org/10.1594/PANGAEA.845818.