PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1
A series of laboratory culture experiments was used to investigate the effect of selenium (Se, 0–10 nM) on the growth, cellular volume, photophysiology, and pigments of two temperate and four polar oceanic phytoplankton species [coccolithophore Emiliania huxleyi (Lohmann) W. W. Hay et H. P. Mohler,...
Published in: | Journal of Phycology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1529-8817.2012.01153.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.2012.01153.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.2012.01153.x |
id |
crwiley:10.1111/j.1529-8817.2012.01153.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1529-8817.2012.01153.x 2024-06-23T07:46:48+00:00 PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 Wake, Bronwyn D. Hassler, Christel S. Bowie, Andrew R. Haddad, Paul R. Butler, Edward C. V. 2012 http://dx.doi.org/10.1111/j.1529-8817.2012.01153.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.2012.01153.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.2012.01153.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 48, issue 3, page 585-594 ISSN 0022-3646 1529-8817 journal-article 2012 crwiley https://doi.org/10.1111/j.1529-8817.2012.01153.x 2024-06-04T06:48:11Z A series of laboratory culture experiments was used to investigate the effect of selenium (Se, 0–10 nM) on the growth, cellular volume, photophysiology, and pigments of two temperate and four polar oceanic phytoplankton species [coccolithophore Emiliania huxleyi (Lohmann) W. W. Hay et H. P. Mohler, cyanobacterium Synechococcus sp., prymnesiophyte Phaeocystis sp., and three diatoms— Fragilariopsis cylindrus (Grunow) Kriegar, Chaetoceros sp., and Thalassiosira antarctica G. Karst.]. Only Synechoccocus sp. and Phaeocystis sp. did not show any requirement for Se. Under Se‐deficient conditions, the growth rate of E. huxleyi was decreased by 1.6‐fold, whereas cellular volume was increased by 1.9‐fold. Se limitation also decreased chl a (2.5‐fold), maximum relative electron transport rate (1.9‐fold), and saturating light intensity (2.8‐fold), suggesting that Se plays a role in photosynthesis or high‐light acclimation. Pigment analysis for Antarctic taxa provided an interesting counterpoint to the physiology of E. huxleyi . For all Se‐dependent Antarctic diatoms, Se limitation decreased growth rate and chl a content, whereas cellular volume was not affected. Pigment analysis revealed that other pigments were affected under Se deficiency. Photoprotective pigments increased by 1.4‐fold, while diadinoxanthin:diatoxanthin ratios decreased by 1.5‐ to 4.9‐fold under Se limitation, supporting a role for Se in photoprotection. Our results demonstrate an Se growth requirement for polar diatoms and indicate that Se could play a role in the biogeochemical cycles of other nutrients, such as silicic acid in the Southern Ocean. Se measurements made during the austral summer in the Southern Ocean and Se biological requirement were used to discuss possible Se limitation in phytoplankton from contrasting oceanographic regions. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Wiley Online Library Antarctic Austral Southern Ocean Journal of Phycology 48 3 585 594 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A series of laboratory culture experiments was used to investigate the effect of selenium (Se, 0–10 nM) on the growth, cellular volume, photophysiology, and pigments of two temperate and four polar oceanic phytoplankton species [coccolithophore Emiliania huxleyi (Lohmann) W. W. Hay et H. P. Mohler, cyanobacterium Synechococcus sp., prymnesiophyte Phaeocystis sp., and three diatoms— Fragilariopsis cylindrus (Grunow) Kriegar, Chaetoceros sp., and Thalassiosira antarctica G. Karst.]. Only Synechoccocus sp. and Phaeocystis sp. did not show any requirement for Se. Under Se‐deficient conditions, the growth rate of E. huxleyi was decreased by 1.6‐fold, whereas cellular volume was increased by 1.9‐fold. Se limitation also decreased chl a (2.5‐fold), maximum relative electron transport rate (1.9‐fold), and saturating light intensity (2.8‐fold), suggesting that Se plays a role in photosynthesis or high‐light acclimation. Pigment analysis for Antarctic taxa provided an interesting counterpoint to the physiology of E. huxleyi . For all Se‐dependent Antarctic diatoms, Se limitation decreased growth rate and chl a content, whereas cellular volume was not affected. Pigment analysis revealed that other pigments were affected under Se deficiency. Photoprotective pigments increased by 1.4‐fold, while diadinoxanthin:diatoxanthin ratios decreased by 1.5‐ to 4.9‐fold under Se limitation, supporting a role for Se in photoprotection. Our results demonstrate an Se growth requirement for polar diatoms and indicate that Se could play a role in the biogeochemical cycles of other nutrients, such as silicic acid in the Southern Ocean. Se measurements made during the austral summer in the Southern Ocean and Se biological requirement were used to discuss possible Se limitation in phytoplankton from contrasting oceanographic regions. |
format |
Article in Journal/Newspaper |
author |
Wake, Bronwyn D. Hassler, Christel S. Bowie, Andrew R. Haddad, Paul R. Butler, Edward C. V. |
spellingShingle |
Wake, Bronwyn D. Hassler, Christel S. Bowie, Andrew R. Haddad, Paul R. Butler, Edward C. V. PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
author_facet |
Wake, Bronwyn D. Hassler, Christel S. Bowie, Andrew R. Haddad, Paul R. Butler, Edward C. V. |
author_sort |
Wake, Bronwyn D. |
title |
PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
title_short |
PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
title_full |
PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
title_fullStr |
PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
title_full_unstemmed |
PHYTOPLANKTON SELENIUM REQUIREMENTS: THE CASE FOR SPECIES ISOLATED FROM TEMPERATE AND POLAR REGIONS OF THE SOUTHERN HEMISPHERE 1 |
title_sort |
phytoplankton selenium requirements: the case for species isolated from temperate and polar regions of the southern hemisphere 1 |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1529-8817.2012.01153.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.2012.01153.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.2012.01153.x |
geographic |
Antarctic Austral Southern Ocean |
geographic_facet |
Antarctic Austral Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Journal of Phycology volume 48, issue 3, page 585-594 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1529-8817.2012.01153.x |
container_title |
Journal of Phycology |
container_volume |
48 |
container_issue |
3 |
container_start_page |
585 |
op_container_end_page |
594 |
_version_ |
1802648299359961088 |