| Title |
Induction of toxin production in dinoflagellates: the grazer makes a difference
|
|---|---|
| Published in |
Oecologia, February 2008
|
| DOI | 10.1007/s00442-008-0981-6 |
| Pubmed ID | |
| Authors |
Johanna Bergkvist, Erik Selander, Henrik Pavia |
| Abstract |
The dinoflagellate Alexandrium minutum has previously been shown to produce paralytic shellfish toxins (PST) in response to waterborne cues from the copepod Acartia tonsa. In order to investigate if grazer-induced toxin production is a general or grazer-specific response of A. minutum to calanoid copepods, we exposed two strains of A. minutum to waterborne cues from three other species of calanoid copepods, Acartia clausi, Centropages typicus and Pseudocalanus sp. Both A. minutum strains responded to waterborne cues from Centropages and Acartia with significantly increased cell-specific toxicity. Waterborne cues from Centropages caused the strongest response in the A. minutum cells, with 5 to >20 times higher toxin concentrations compared to controls. In contrast, neither of the A. minutum strains responded with significantly increased toxicity to waterborne cues from Pseudocalanus. The absolute increase in PST content was proportional to the intrinsic toxicity of the different A. minutum strains that were used. The results show that grazer-induced PST production is a grazer-specific response in A. minutum, and its potential ecological importance will thus depend on the composition of the zooplankton community, as well as the intrinsic toxin-producing properties of the A. minutum population. |
Mendeley readers
The data shown below were compiled from readership statistics for 104 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Germany | 1 | <1% |
| France | 1 | <1% |
| Brazil | 1 | <1% |
| Unknown | 100 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 31 | 30% |
| Researcher | 23 | 22% |
| Student > Master | 12 | 12% |
| Student > Doctoral Student | 10 | 10% |
| Student > Bachelor | 7 | 7% |
| Other | 10 | 10% |
| Unknown | 11 | 11% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 58 | 56% |
| Environmental Science | 19 | 18% |
| Earth and Planetary Sciences | 4 | 4% |
| Biochemistry, Genetics and Molecular Biology | 3 | 3% |
| Chemistry | 3 | 3% |
| Other | 2 | 2% |
| Unknown | 15 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. 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 03 September 2008.
All research outputs
#15,240,835
of 22,660,862 outputs
Outputs from Oecologia
#3,248
of 4,201 outputs
Outputs of similar age
#68,004
of 79,829 outputs
Outputs of similar age from Oecologia
#17
of 20 outputs
Altmetric has tracked 22,660,862 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
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We're also able to compare this research output to 20 others from the same source and published within six weeks on either side of this one. This one is in the 10th percentile – i.e., 10% of its contemporaries scored the same or lower than it.