气候变化领域集成服务门户(CCPortal): Dissolved organic matter composition derived from FT-ICR-MS analyses during HEINCKE cruise HE361

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.848886
	Dissolved organic matter composition derived from FT-ICR-MS analyses during HEINCKE cruise HE361
	Osterholz; Helena; Singer; Gabriel; Wemheuer; Bernd; Daniel; Rolf; Simon; Meinhard; Niggemann; Jutta; Dittmar; Thorsten
发布日期	2016-02-08
数据集类型	dataset
英文简介	Dissolved organic matter (DOM) is the main substrate and energy source for heterotrophic bacterioplankton. To understand the interactions between DOM and the bacterial community (BC), it is important to identify the key factors on both sides in detail, chemically distinct moieties in DOM and the various bacterial taxa. Next-generation sequencing facilitates the classification of millions of reads of environmental DNA and RNA amplicons and ultrahigh-resolution mass spectrometry yields up to 10,000 DOM molecular formulae in a marine water sample. Linking this detailed biological and chemical information is a crucial first step toward a mechanistic understanding of the role of microorganisms in the marine carbon cycle. In this study, we interpreted the complex microbiological and molecular information via a novel combination of multivariate statistics. We were able to reveal distinct relationships between the key factors of organic matter cycling along a latitudinal transect across the North Sea. Total BC and DOM composition were mainly driven by mixing of distinct water masses and presumably retain their respective terrigenous imprint on similar timescales on their way through the North Sea. The active microbial community, however, was rather influenced by local events and correlated with specific DOM molecular formulae indicative of compounds that are easily degradable. These trends were most pronounced on the highest resolved level, that is, operationally defined 'species', reflecting the functional diversity of microorganisms at high taxonomic resolution.
空间范围	Median Latitude: 57.334637 * Median Longitude: 5.751835 * South-bound Latitude: 54.089300 * West-bound Longitude: 3.036000 * North-bound Latitude: 59.984830 * East-bound Longitude: 9.000830
时间范围	2011-07-12T12:00:00 - 2011-07-27T14:00:00
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/215447
推荐引用方式 GB/T 7714	Osterholz,Helena,Singer,et al. Dissolved organic matter composition derived from FT-ICR-MS analyses during HEINCKE cruise HE361.2016-02-08.https://doi.org/10.1594/PANGAEA.848886.