气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry, biomass and metabolic rates (leucine incorporation, CO2 fixation and respiration) of Rhodobacteraceae (strain MED165) and Flavobacteriaceae (strain MED217) in a laboratory experiment

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.831372
	Seawater carbonate chemistry, biomass and metabolic rates (leucine incorporation, CO2 fixation and respiration) of Rhodobacteraceae (strain MED165) and Flavobacteriaceae (strain MED217) in a laboratory experiment
	Teira; Eva; Fernández; A; Alvarez-Salgado; Xose Anton; García-Martín; Enma Elena; Serret; Pablo; Sobrino; Cristina
发布日期	2012-04-02
数据集类型	dataset
英文关键词	Bacteria ; Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Cytophaga sp. ; Growth/Morphology ; Heterotrophic prokaryotes ; Laboratory experiment ; Laboratory strains ; Mediterranean Sea ; Other metabolic rates ; Pelagos ; Respiration ; Single species
英文简介	Experimental results related to the effects of ocean acidification on planktonic marine microbes are still rather inconsistent and occasionally contradictory. Moreover, laboratory or field experiments that address the effects of changes in CO2 concentrations on heterotrophic microbes are very scarce, despite the major role of these organisms in the marine carbon cycle. We tested the direct effect of an elevated CO2 concentration (1000 ppmv) on the biomass and metabolic rates (leucine incorporation, CO2 fixation and respiration) of 2 isolates belonging to 2 relevant marine bacterial families, Rhodobacteraceae (strain MED165) and Flavobacteriaceae (strain MED217). Our results demonstrate that, contrary to some expectations, high pCO2 did not negatively affect bacterial growth but increased growth efficiency in the case of MED217. The elevated partial pressure of CO2 (pCO2) caused, in both cases, higher rates of CO2 fixation in the dissolved fraction and, in the case of MED217, lower respiration rates. Both responses would tend to increase the pH of seawater acting as a negative feedback between elevated atmospheric CO2 concentrations and ocean acidification.
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/217520
推荐引用方式 GB/T 7714	Teira,Eva,Fernández,et al. Seawater carbonate chemistry, biomass and metabolic rates (leucine incorporation, CO2 fixation and respiration) of Rhodobacteraceae (strain MED165) and Flavobacteriaceae (strain MED217) in a laboratory experiment.2012-04-02.https://doi.org/10.1594/PANGAEA.831372.