ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology)
Experiments were conducted during January 1995 in the Southern Ocean to examine the impact of enhanced solar ultraviolet-B radiation (UVBR) on the biosynthesis and composition of organic compounds in Antarctic marine phytoplankton. Our results revealed distinct changes in the biochemical composition...
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ftnipr:oai:nipr.repo.nii.ac.jp:00005337 2023-05-15T13:46:39+02:00 ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) / ハンダ ノブヒコ スズキ コウジ タグチ サトル ハマ タケオ Joaquim I. GOES Nobuhiko HANDA Koji SUZUKI Satoru TAGUCHI Takeo HAMA 1997-02 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5337 http://id.nii.ac.jp/1291/00005337/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5337&item_no=1&attribute_id=18&file_no=1 en eng Proceeding Institute for Hydrospheric-Atmospheric Sciences, Nagoya University:National Institute of Oceanography Institute for Hydrospheric-Atmospheric Sciences, Nagoya University Hokkaido National Fisheries Research Institute:(Present address)Faculty of Bioengineering, Soka University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5337 http://id.nii.ac.jp/1291/00005337/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 10, 25-38(1997-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5337&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1997 ftnipr 2023-02-25T20:13:31Z Experiments were conducted during January 1995 in the Southern Ocean to examine the impact of enhanced solar ultraviolet-B radiation (UVBR) on the biosynthesis and composition of organic compounds in Antarctic marine phytoplankton. Our results revealed distinct changes in the biochemical composition of phytoplankton attributable to UVBR exposure. Fatty acid concentrations increased in the presence of UVBR, mainly on account of a large increase in the content of saturated fatty acids within the cells. On the other hand, polyunsaturated fatty acids declined in cells exposed to UVBR. Amino acid concentrations were higher in the UVBR exposed samples, attributable largely to a UVBR induced increase in cellular concentrations of glutamic' acid (glutamic acid+glutamine) and aspartic acid. Monosaccharide constituents of cellular storage and structural carbohydrates, however, showed a decline in the cells exposed to UVBR. Except for the decline in structural monosaccharides, these changes in the patterns of organic compounds observed in Antarctic phytoplankton were remarkably similar but, greater in magnitude in comparison to those observed in temperate phytoplankton exposed to UVBR. Report Antarc* Antarctic Polar Biology Proceedings of the NIPR Symposium on Polar Biology Southern Ocean National Institute of Polar Research Repository, Japan Antarctic Southern Ocean |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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English |
description |
Experiments were conducted during January 1995 in the Southern Ocean to examine the impact of enhanced solar ultraviolet-B radiation (UVBR) on the biosynthesis and composition of organic compounds in Antarctic marine phytoplankton. Our results revealed distinct changes in the biochemical composition of phytoplankton attributable to UVBR exposure. Fatty acid concentrations increased in the presence of UVBR, mainly on account of a large increase in the content of saturated fatty acids within the cells. On the other hand, polyunsaturated fatty acids declined in cells exposed to UVBR. Amino acid concentrations were higher in the UVBR exposed samples, attributable largely to a UVBR induced increase in cellular concentrations of glutamic' acid (glutamic acid+glutamine) and aspartic acid. Monosaccharide constituents of cellular storage and structural carbohydrates, however, showed a decline in the cells exposed to UVBR. Except for the decline in structural monosaccharides, these changes in the patterns of organic compounds observed in Antarctic phytoplankton were remarkably similar but, greater in magnitude in comparison to those observed in temperate phytoplankton exposed to UVBR. |
format |
Report |
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/ ハンダ ノブヒコ スズキ コウジ タグチ サトル ハマ タケオ Joaquim I. GOES Nobuhiko HANDA Koji SUZUKI Satoru TAGUCHI Takeo HAMA |
spellingShingle |
/ ハンダ ノブヒコ スズキ コウジ タグチ サトル ハマ タケオ Joaquim I. GOES Nobuhiko HANDA Koji SUZUKI Satoru TAGUCHI Takeo HAMA ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
author_facet |
/ ハンダ ノブヒコ スズキ コウジ タグチ サトル ハマ タケオ Joaquim I. GOES Nobuhiko HANDA Koji SUZUKI Satoru TAGUCHI Takeo HAMA |
author_sort |
/ ハンダ ノブヒコ |
title |
ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
title_short |
ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
title_full |
ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
title_fullStr |
ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
title_full_unstemmed |
ULTRAVIOLET RADIATION INDUCED CHANGES IN THE PRODUCTION OF ORGANIC COMPOUNDS IN ANTARCTIC MARINE PHYTOPLANKTON (18th Symposium on Polar Biology) |
title_sort |
ultraviolet radiation induced changes in the production of organic compounds in antarctic marine phytoplankton (18th symposium on polar biology) |
publisher |
Proceeding |
publishDate |
1997 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5337 http://id.nii.ac.jp/1291/00005337/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5337&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Polar Biology Proceedings of the NIPR Symposium on Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctic Polar Biology Proceedings of the NIPR Symposium on Polar Biology Southern Ocean |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5337 http://id.nii.ac.jp/1291/00005337/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 10, 25-38(1997-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5337&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766244973120847872 |