| Title |
Archaeal nucleic acids in picoplankton from great lakes on three continents
|
|---|---|
| Published in |
Microbial Ecology, August 2003
|
| DOI | 10.1007/s00248-003-1003-1 |
| Pubmed ID | |
| Authors |
B. P. Keough, T. M. Schmidt, R. E. Hicks |
| Abstract |
Phylogenetic analysis of PCR-amplified 16S rRNA genes revealed the presence of archaea in picoplankton collected from the Laurentian Great Lakes in North America, Africa's Lake Victoria, and Lakes Ladoga and Onega in northeastern Eurasia. From 1 to 10% of the rRNA extracted from size-fractionated picoplankton (>0.2 microm but <1.2 microm) collected in the epilimnion and hypolimnion of these lakes was specific to the Archaea, whereas the majority of rRNA was derived from Bacteria. Analysis of the 16S rRNA genes cloned from these samples indicated they were closely related to crenarchaeal sequences that have been widely characterized from marine environments. The presence of nearly identical 16S rDNA clones in several of these geographically disparate lakes suggests a cosmopolitan distribution of specific subgroups of these Archaea in freshwater environments. Despite their abundance in the water column of freshwater lakes, we have no representatives of these crenarchaea in pure culture, and so their physiological characteristics and ecological role remain unknown. |
Mendeley readers
The data shown below were compiled from readership statistics for 79 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 2 | 3% |
| Canada | 1 | 1% |
| Switzerland | 1 | 1% |
| Unknown | 75 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 20 | 25% |
| Student > Ph. D. Student | 19 | 24% |
| Student > Master | 15 | 19% |
| Professor | 7 | 9% |
| Student > Bachelor | 4 | 5% |
| Other | 8 | 10% |
| Unknown | 6 | 8% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 33 | 42% |
| Environmental Science | 16 | 20% |
| Biochemistry, Genetics and Molecular Biology | 6 | 8% |
| Earth and Planetary Sciences | 6 | 8% |
| Medicine and Dentistry | 3 | 4% |
| Other | 3 | 4% |
| Unknown | 12 | 15% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 July 2008.
All research outputs
#7,668,752
of 23,342,092 outputs
Outputs from Microbial Ecology
#799
of 2,087 outputs
Outputs of similar age
#16,974
of 49,509 outputs
Outputs of similar age from Microbial Ecology
#2
of 5 outputs
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