Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii
The presented data suggest that acclimatization times of exponentially growing diatoms to environmental perturbations may be weeks to months, rather than days to weeks. The response of acclimatized T. weissflogii to pCO2 depended on irradiance and temperature and was highly interactive, non-linear,...
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Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
2015
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/7689 2023-05-15T17:50:49+02:00 Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii Passow, Uta Laws, Edward A. 34.4126 -119.8420 2015-12-14 text/csv application/pdf https://hdl.handle.net/1912/7689 en eng Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu https://hdl.handle.net/1912/9425 https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CarbonateSystem.html2?treatment https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CellCharacteristics.html2?Data https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CellNumbers.html2?PCO2_treatment https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_GrowthRates.html1 https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_pHExtremes.html1 https://hdl.handle.net/1912/7689 doi:10.1575/1912/7689 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY doi:10.1575/1912/7689 Ocean Acidification Temperature Transparent exopolymer particles (TEP) Climate change Diatom Thalassiosira weissflogii Partial Pressure CO2 (pCO2) Growth Rates Cell Quotas Marinobacter adhaerens HP15 Dataset 2015 ftwhoas https://doi.org/10.1575/1912/7689 2022-05-28T22:59:27Z The presented data suggest that acclimatization times of exponentially growing diatoms to environmental perturbations may be weeks to months, rather than days to weeks. The response of acclimatized T. weissflogii to pCO2 depended on irradiance and temperature and was highly interactive, non-linear, and non-uniform. A very significant negative effect of pCO2 was observed under growth conditions that were light-, and temperature-limited; a smaller, but still significant negative response was seen under light-limiting growth conditions, whereas pCO2 did not affect growth rates of T. weissflogii under light-saturated growth conditions. Cell quotas of organic carbon, nitrogen, or chlorophyll a were linked to growth rate. The cell-normalized production of transparent exopolymer particles (TEP) was positively correlated with POC cell quotas, with some minor impact of irradiance and pCO2 on the relationship. This correlation of TEP production with carbon cell quotas is consistent with the hypothesis that extracellular release is an inherent component of cell metabolism. Results suggest that elevated pCO2 functions as an (additional) metabolic stressor for T. weissflogii and that the interaction of different stressors determines growth rates and cell characteristics in a complex, non-linear relationship. The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell quotas of Thalassiosira weissflogii grown under a variety of different temperatures, irradiances, and pCO2 conditions are discussed. This research was supported by NSF Grant: OCE-0926711 Dataset Ocean acidification Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Ocean Acidification Temperature Transparent exopolymer particles (TEP) Climate change Diatom Thalassiosira weissflogii Partial Pressure CO2 (pCO2) Growth Rates Cell Quotas Marinobacter adhaerens HP15 |
spellingShingle |
Ocean Acidification Temperature Transparent exopolymer particles (TEP) Climate change Diatom Thalassiosira weissflogii Partial Pressure CO2 (pCO2) Growth Rates Cell Quotas Marinobacter adhaerens HP15 Passow, Uta Laws, Edward A. Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
topic_facet |
Ocean Acidification Temperature Transparent exopolymer particles (TEP) Climate change Diatom Thalassiosira weissflogii Partial Pressure CO2 (pCO2) Growth Rates Cell Quotas Marinobacter adhaerens HP15 |
description |
The presented data suggest that acclimatization times of exponentially growing diatoms to environmental perturbations may be weeks to months, rather than days to weeks. The response of acclimatized T. weissflogii to pCO2 depended on irradiance and temperature and was highly interactive, non-linear, and non-uniform. A very significant negative effect of pCO2 was observed under growth conditions that were light-, and temperature-limited; a smaller, but still significant negative response was seen under light-limiting growth conditions, whereas pCO2 did not affect growth rates of T. weissflogii under light-saturated growth conditions. Cell quotas of organic carbon, nitrogen, or chlorophyll a were linked to growth rate. The cell-normalized production of transparent exopolymer particles (TEP) was positively correlated with POC cell quotas, with some minor impact of irradiance and pCO2 on the relationship. This correlation of TEP production with carbon cell quotas is consistent with the hypothesis that extracellular release is an inherent component of cell metabolism. Results suggest that elevated pCO2 functions as an (additional) metabolic stressor for T. weissflogii and that the interaction of different stressors determines growth rates and cell characteristics in a complex, non-linear relationship. The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell quotas of Thalassiosira weissflogii grown under a variety of different temperatures, irradiances, and pCO2 conditions are discussed. This research was supported by NSF Grant: OCE-0926711 |
format |
Dataset |
author |
Passow, Uta Laws, Edward A. |
author_facet |
Passow, Uta Laws, Edward A. |
author_sort |
Passow, Uta |
title |
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
title_short |
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
title_full |
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
title_fullStr |
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
title_full_unstemmed |
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii |
title_sort |
series 5: pco2 as one of multiple stressors for thalassiosira weissflogii |
publisher |
Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu |
publishDate |
2015 |
url |
https://hdl.handle.net/1912/7689 |
op_coverage |
34.4126 -119.8420 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
doi:10.1575/1912/7689 |
op_relation |
https://hdl.handle.net/1912/9425 https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CarbonateSystem.html2?treatment https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CellCharacteristics.html2?Data https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_CellNumbers.html2?PCO2_treatment https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_GrowthRates.html1 https://data.bco-dmo.org/jg/serv/BCO/Ocean_Acidification_and_Aggregation/Series5_pHExtremes.html1 https://hdl.handle.net/1912/7689 doi:10.1575/1912/7689 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1575/1912/7689 |
_version_ |
1766157720751177728 |