期刊
AQUATIC MICROBIAL ECOLOGY
卷 60, 期 3, 页码 227-232出版社
INTER-RESEARCH
DOI: 10.3354/ame01422
关键词
Prokaryotic growth efficiency; Leucine-to-carbon conversion factor; Deep ocean
资金
- Spanish 'Plan Nacional de I+D' (MEC) [CTM2004-06842-C03-03/MAR, CTM2007-66408-C02-02]
- Earth and Life Science Division of the Dutch Science Foundation [835.20.023]
- Spanish Ministry of Education and Science [AP2005-3932]
- MODIVUS [CTM2005-04795/MAR]
- STORM [CTM2009-09352/MAR]
Experiments were conducted in the mesopelagic subtropical northeast Atlantic Ocean to determine the range of variability in the prokaryotic leucine-to-carbon conversion factor (CF), and prokaryotic growth efficiency (PGE). The way prokaryotic heterotrophic production (PHP) is calculated directly influences PGE (variations of PGE between 1 and 31% were found for a single sample). The empirically obtained deep-water CFs showed a 7-fold variability (0.13 to 0.85 kg C mol(-1) Leu), but were always lower than the theoretical CF of 1.55 kg C mol(-1) Leu assuming no isotope dilution. Empirically determined CFs were highly correlated to PGE, suggesting that both parameters are representations of the same basic metabolic processes. Overall, the PGEs obtained in this study suggest that mesopelagic prokaryotic assemblages can sometimes be as important in carbon processing as their epipelagic counterparts.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据