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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.13501
|2 doi
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|a pubmed24n0881.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Futian
|e verfasserin
|4 aut
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| 245 |
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|a Decreased photosynthesis and growth with reduced respiration in the model diatom Phaeodactylum tricornutum grown under elevated CO2 over 1800 generations
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.10.2017
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2016 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.
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|a Studies on the long-term responses of marine phytoplankton to ongoing ocean acidification (OA) are appearing rapidly in the literature. However, only a few of these have investigated diatoms, which is disproportionate to their contribution to global primary production. Here we show that a population of the model diatom Phaeodactylum tricornutum, after growing under elevated CO2 (1000 μatm, HCL, pHT : 7.70) for 1860 generations, showed significant differences in photosynthesis and growth from a population maintained in ambient CO2 and then transferred to elevated CO2 for 20 generations (HC). The HCL population had lower mitochondrial respiration, than did the control population maintained in ambient CO2 (400 μatm, LCL, pHT : 8.02) for 1860 generations. Although the cells had higher respiratory carbon loss within 20 generations under the elevated CO2 , being consistent to previous findings, they downregulated their respiration to sustain their growth in longer duration under the OA condition. Responses of phytoplankton to OA may depend on the timescale for which they are exposed due to fluctuations in physiological traits over time. This study provides the first evidence that populations of the model species, P. tricornutum, differ phenotypically from each other after having been grown for differing spans of time under OA conditions, suggesting that long-term changes should be measured to understand responses of primary producers to OA, especially in waters with diatom-dominated phytoplankton assemblages
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|a Journal Article
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|a Phaeodactylum tricornutum
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|a CO2
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|a diatom
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|a growth
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|a ocean acidification
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| 650 |
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|a photosynthesis
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|a respiration
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|a Carbon Dioxide
|2 NLM
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|a 142M471B3J
|2 NLM
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| 700 |
1 |
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|a Beardall, John
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Collins, Sinéad
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Kunshan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 23(2017), 1 vom: 22. Jan., Seite 127-137
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:23
|g year:2017
|g number:1
|g day:22
|g month:01
|g pages:127-137
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|u http://dx.doi.org/10.1111/gcb.13501
|3 Volltext
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