A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga
Antarctic red alga, Phyllophora antarctica A. et E. S. GEPP was collected from beneath the ice on the coast of East Ongul Island (Lat. 69°00'S, Long. 39°35'E) situated in Lutzow-Holm Bay, Antarctica. The water temperature was -0.5℃. The light intensity was 650lx. The measurement of photosy...
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National Institute of Polar Research
1976
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ftdoajarticles:oai:doaj.org/article:67ba837be0534391909d1595ec34619d 2023-05-15T13:49:12+02:00 A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga Masao OHNO 1976-12-01T00:00:00Z https://doi.org/10.15094/00007888 https://doaj.org/article/67ba837be0534391909d1595ec34619d EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00007888 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007888 0085-7289 2432-079X https://doaj.org/article/67ba837be0534391909d1595ec34619d Antarctic Record, Iss 57, Pp 141-145 (1976) Geography (General) G1-922 article 1976 ftdoajarticles https://doi.org/10.15094/00007888 2022-12-30T21:49:24Z Antarctic red alga, Phyllophora antarctica A. et E. S. GEPP was collected from beneath the ice on the coast of East Ongul Island (Lat. 69°00'S, Long. 39°35'E) situated in Lutzow-Holm Bay, Antarctica. The water temperature was -0.5℃. The light intensity was 650lx. The measurement of photosynthetic activity on the specimens was made in the laboratory aboard the ice breaker FUJI. The fronds were placed in D. O. bottles for one hour. Net photosynthesis was measured by means of Winkler titration for dissolved O_2 before and after the incubation. The photosynthetic activity increased with increase in light intensity till 8,000lx. The optimum temperature for the photosynthetic activity was about 20℃ under 8,000lx. But the fronds kept under 15℃ or 20℃ for 3 days discolored and showed low rates of the activity. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Ongul Island Ongul Island Directory of Open Access Journals: DOAJ Articles Antarctic Breaker ENVELOPE(-67.257,-67.257,-67.874,-67.874) Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Ongul Island ENVELOPE(39.533,39.533,-69.017,-69.017) East Ongul Island ENVELOPE(39.583,39.583,-69.017,-69.017) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Masao OHNO A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
topic_facet |
Geography (General) G1-922 |
description |
Antarctic red alga, Phyllophora antarctica A. et E. S. GEPP was collected from beneath the ice on the coast of East Ongul Island (Lat. 69°00'S, Long. 39°35'E) situated in Lutzow-Holm Bay, Antarctica. The water temperature was -0.5℃. The light intensity was 650lx. The measurement of photosynthetic activity on the specimens was made in the laboratory aboard the ice breaker FUJI. The fronds were placed in D. O. bottles for one hour. Net photosynthesis was measured by means of Winkler titration for dissolved O_2 before and after the incubation. The photosynthetic activity increased with increase in light intensity till 8,000lx. The optimum temperature for the photosynthetic activity was about 20℃ under 8,000lx. But the fronds kept under 15℃ or 20℃ for 3 days discolored and showed low rates of the activity. |
format |
Article in Journal/Newspaper |
author |
Masao OHNO |
author_facet |
Masao OHNO |
author_sort |
Masao OHNO |
title |
A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
title_short |
A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
title_full |
A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
title_fullStr |
A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
title_full_unstemmed |
A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
title_sort |
preliminary report on the photosynthetic activity of phyllophora antarctica a. et e. s. gepp, antarctic red alga |
publisher |
National Institute of Polar Research |
publishDate |
1976 |
url |
https://doi.org/10.15094/00007888 https://doaj.org/article/67ba837be0534391909d1595ec34619d |
long_lat |
ENVELOPE(-67.257,-67.257,-67.874,-67.874) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.583,39.583,-69.017,-69.017) |
geographic |
Antarctic Breaker Ongul Ongul Island East Ongul Island |
geographic_facet |
Antarctic Breaker Ongul Ongul Island East Ongul Island |
genre |
Antarc* Antarctic Antarctica East Ongul Island Ongul Island |
genre_facet |
Antarc* Antarctic Antarctica East Ongul Island Ongul Island |
op_source |
Antarctic Record, Iss 57, Pp 141-145 (1976) |
op_relation |
https://doi.org/10.15094/00007888 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007888 0085-7289 2432-079X https://doaj.org/article/67ba837be0534391909d1595ec34619d |
op_doi |
https://doi.org/10.15094/00007888 |
_version_ |
1766250996086865920 |