2.50
Hdl Handle:
http://hdl.handle.net/10033/596612
Title:
Low diversity of planktonic bacteria in the tropical ocean.
Authors:
Milici, Mathias; Tomasch, Jürgen; Wos-Oxley, Melissa L; Wang, Hui; Jáuregui, Ruy; Camarinha-Silva, Amelia; Deng, Zhi-Luo; Plumeier, Iris; Giebel, Helge-Ansgar; Wurst, Mascha; Pieper, Dietmar H; Simon, Meinhard; Wagner-Döbler, Irene
Abstract:
The diversity of macro-organisms increases towards the equator, with almost no exceptions. It is the most conserved biogeographical pattern on earth and is thought to be related to the increase of temperature and productivity in the tropics. The extent and orientation of a latitudinal gradient of marine bacterioplankton diversity is controversial. Here we studied the euphotic zone of the Atlantic Ocean based on a transect covering ~12.000 km from 51°S to 47 °N. Water samples were collected at 26 stations at five depths between 20 and 200 m and sequentially filtered through 8 μm, 3 μm and 0,22 μm filters, resulting in a total of 359 samples. Illumina sequencing of the V5-V6 region of the 16S rRNA gene revealed a clear biogeographic pattern with a double inverted latitudinal gradient. Diversity was higher in mid-latitudinal regions of the Atlantic Ocean and decreased towards the equator. This pattern was conserved for bacteria from all three planktonic size fractions. Diversity showed a non-linear relationship with temperature and was negatively correlated with bacterial cell numbers in the upper depth layers (<100 m). The latitudinal gradients of marine bacterial diversity and the mechanisms that govern them are distinct from those found in macro-organisms.
Affiliation:
Helmholtz Centre for infection research, Inhoffenstr. 7, D-38124 Braunschweig, Germany.
Citation:
Low diversity of planktonic bacteria in the tropical ocean. 2016, 6:19054 Sci Rep
Journal:
Scientific reports
Issue Date:
2016
URI:
http://hdl.handle.net/10033/596612
DOI:
10.1038/srep19054
PubMed ID:
26750451
Type:
Article
Language:
en
ISSN:
2045-2322
Appears in Collections:
collections of the research group microbial communication (KOM)

Full metadata record

DC FieldValue Language
dc.contributor.authorMilici, Mathiasen
dc.contributor.authorTomasch, Jürgenen
dc.contributor.authorWos-Oxley, Melissa Len
dc.contributor.authorWang, Huien
dc.contributor.authorJáuregui, Ruyen
dc.contributor.authorCamarinha-Silva, Ameliaen
dc.contributor.authorDeng, Zhi-Luoen
dc.contributor.authorPlumeier, Irisen
dc.contributor.authorGiebel, Helge-Ansgaren
dc.contributor.authorWurst, Maschaen
dc.contributor.authorPieper, Dietmar Hen
dc.contributor.authorSimon, Meinharden
dc.contributor.authorWagner-Döbler, Ireneen
dc.date.accessioned2016-02-18T14:52:06Zen
dc.date.available2016-02-18T14:52:06Zen
dc.date.issued2016en
dc.identifier.citationLow diversity of planktonic bacteria in the tropical ocean. 2016, 6:19054 Sci Repen
dc.identifier.issn2045-2322en
dc.identifier.pmid26750451en
dc.identifier.doi10.1038/srep19054en
dc.identifier.urihttp://hdl.handle.net/10033/596612en
dc.description.abstractThe diversity of macro-organisms increases towards the equator, with almost no exceptions. It is the most conserved biogeographical pattern on earth and is thought to be related to the increase of temperature and productivity in the tropics. The extent and orientation of a latitudinal gradient of marine bacterioplankton diversity is controversial. Here we studied the euphotic zone of the Atlantic Ocean based on a transect covering ~12.000 km from 51°S to 47 °N. Water samples were collected at 26 stations at five depths between 20 and 200 m and sequentially filtered through 8 μm, 3 μm and 0,22 μm filters, resulting in a total of 359 samples. Illumina sequencing of the V5-V6 region of the 16S rRNA gene revealed a clear biogeographic pattern with a double inverted latitudinal gradient. Diversity was higher in mid-latitudinal regions of the Atlantic Ocean and decreased towards the equator. This pattern was conserved for bacteria from all three planktonic size fractions. Diversity showed a non-linear relationship with temperature and was negatively correlated with bacterial cell numbers in the upper depth layers (<100 m). The latitudinal gradients of marine bacterial diversity and the mechanisms that govern them are distinct from those found in macro-organisms.en
dc.language.isoenen
dc.titleLow diversity of planktonic bacteria in the tropical ocean.en
dc.typeArticleen
dc.contributor.departmentHelmholtz Centre for infection research, Inhoffenstr. 7, D-38124 Braunschweig, Germany.en
dc.identifier.journalScientific reportsen

Related articles on PubMed

This item is licensed under a Creative Commons License
Creative Commons
All Items in HZI are protected by copyright, with all rights reserved, unless otherwise indicated.