pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project)
<p>The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the<br /> growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell<br /> quotas of Thalassiosira weissflogii grown under a variety of different temp...
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Biological and Chemical Oceanography Data Management Office (BCO-DMO)
2014
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dataone:sha256:8eeae2156d30cc543aa18565088d53bac11d611adcc3da2d1b39cec66fd7babe 2024-06-03T18:47:06+00:00 pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) Uta Passow Edward Laws 2014-11-13T00:00:00Z https://search.dataone.org/view/sha256:8eeae2156d30cc543aa18565088d53bac11d611adcc3da2d1b39cec66fd7babe unknown Biological and Chemical Oceanography Data Management Office (BCO-DMO) oceans Dataset 2014 dataone:urn:node:BCODMO 2024-06-03T18:08:38Z <p>The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the<br /> growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell<br /> quotas of Thalassiosira weissflogii grown under a variety of different temperatures, irradiances,<br /> and pCO2 conditions are discussed. The presented data suggest that acclimatization times of<br /> exponentially growing diatoms to environmental perturbations may be weeks to months, rather<br /> than days to weeks. The response of acclimatized T. weissflogii to pCO2 depended on irradiance<br /> and temperature and was highly interactive, non-linear, and non-uniform. A very significant<br /> negative effect of pCO2 was observed under growth conditions that were light-, and<br /> temperature-limited; a smaller, but still significant negative response was seen under<br /> light-limiting growth conditions, whereas pCO2 did not affect growth rates of T. weissflogii under<br /> light-saturated growth conditions. Cell quotas of organic carbon, nitrogen, or chlorophyll a were<br /> linked to growth rate. The cell-normalized production of transparent exopolymer particles (TEP)<br /> was positively correlated with POC cell quotas, with some minor impact of irradiance and pCO2<br /> on the relationship. This correlation of TEP production with carbon cell quotas is consistent with<br /> the hypothesis that extracellular release is an inherent component of cell metabolism. Results<br /> suggest that elevated pCO2 functions as an (additional) metabolic stressor for T. weissflogii and<br /> that the interaction of different stressors determines growth rates and cell characteristics in a<br /> complex, non-linear relationship.</p> Dataset Ocean acidification Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) |
institution |
Open Polar |
collection |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) |
op_collection_id |
dataone:urn:node:BCODMO |
language |
unknown |
topic |
oceans |
spellingShingle |
oceans Uta Passow Edward Laws pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
topic_facet |
oceans |
description |
<p>The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the<br /> growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell<br /> quotas of Thalassiosira weissflogii grown under a variety of different temperatures, irradiances,<br /> and pCO2 conditions are discussed. The presented data suggest that acclimatization times of<br /> exponentially growing diatoms to environmental perturbations may be weeks to months, rather<br /> than days to weeks. The response of acclimatized T. weissflogii to pCO2 depended on irradiance<br /> and temperature and was highly interactive, non-linear, and non-uniform. A very significant<br /> negative effect of pCO2 was observed under growth conditions that were light-, and<br /> temperature-limited; a smaller, but still significant negative response was seen under<br /> light-limiting growth conditions, whereas pCO2 did not affect growth rates of T. weissflogii under<br /> light-saturated growth conditions. Cell quotas of organic carbon, nitrogen, or chlorophyll a were<br /> linked to growth rate. The cell-normalized production of transparent exopolymer particles (TEP)<br /> was positively correlated with POC cell quotas, with some minor impact of irradiance and pCO2<br /> on the relationship. This correlation of TEP production with carbon cell quotas is consistent with<br /> the hypothesis that extracellular release is an inherent component of cell metabolism. Results<br /> suggest that elevated pCO2 functions as an (additional) metabolic stressor for T. weissflogii and<br /> that the interaction of different stressors determines growth rates and cell characteristics in a<br /> complex, non-linear relationship.</p> |
format |
Dataset |
author |
Uta Passow Edward Laws |
author_facet |
Uta Passow Edward Laws |
author_sort |
Uta Passow |
title |
pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
title_short |
pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
title_full |
pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
title_fullStr |
pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
title_full_unstemmed |
pCO2 as one of multiple stressors for Thalassiosira weissflogii - Cell Characteristics - dry weight per cell from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project) |
title_sort |
pco2 as one of multiple stressors for thalassiosira weissflogii - cell characteristics - dry weight per cell from ucsb msi passow lab from 2009 to 2010 (oa - ocean acidification and aggregation project) |
publisher |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) |
publishDate |
2014 |
url |
https://search.dataone.org/view/sha256:8eeae2156d30cc543aa18565088d53bac11d611adcc3da2d1b39cec66fd7babe |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
_version_ |
1800875995693056000 |