Rapid shifts in picoeukaryote community structure in response to ocean acidification

Rapid shifts in picoeukaryote community structure were observed during a CO2 perturbation experiment in which we followed the development of phytoplankton blooms in nutrient-amended mesocosms under the present day or predicted future atmospheric pCO2 (750 μatm, seawater pH 7.8). Analysis of rbcL clo...

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Bibliographic Details
Published in:The ISME Journal
Main Authors: Meakin, Nicholas G, Wyman, Michael
Format: Text
Language:English
Published: Nature Publishing Group 2011
Subjects:
Original Article
Ocean acidification
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3160676
http://www.ncbi.nlm.nih.gov/pubmed/21412344
https://doi.org/10.1038/ismej.2011.18
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Summary:Rapid shifts in picoeukaryote community structure were observed during a CO2 perturbation experiment in which we followed the development of phytoplankton blooms in nutrient-amended mesocosms under the present day or predicted future atmospheric pCO2 (750 μatm, seawater pH 7.8). Analysis of rbcL clone libraries (encoding the large subunit of RubisCO) and specific quantitative PCR assays showed that two prasinophytes closely related to Micromonas pusilla and Bathycoccus prasinos were present, but responded very differently to high CO2/acidification. We found that the abundance of Micromonas-like phylotypes was significantly higher (>20-fold) under elevated CO2/low pH, whereas the Bathycoccus-like phylotypes were more evenly distributed between treatments and dominated the prasinophyte community under ambient conditions.

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