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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Online Access: | https://doi.org/10.15094/00007888 https://doaj.org/article/67ba837be0534391909d1595ec34619d |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:67ba837be0534391909d1595ec34619d 2023-05-15T13:43:15+02:00 A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga Masao OHNO 1976-12-01 https://doi.org/10.15094/00007888 https://doaj.org/article/67ba837be0534391909d1595ec34619d en other eng National Institute of Polar Research doi:10.15094/00007888 0085-7289 2432-079X https://doaj.org/article/67ba837be0534391909d1595ec34619d undefined Antarctic Record, Iss 57, Pp 141-145 (1976) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1976 fttriple https://doi.org/10.15094/00007888 2023-01-22T19:11:55Z 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 Unknown Antarctic Breaker ENVELOPE(-67.257,-67.257,-67.874,-67.874) East Ongul Island ENVELOPE(39.583,39.583,-69.017,-69.017) Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Ongul Island ENVELOPE(39.533,39.533,-69.017,-69.017) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo |
spellingShingle |
geo Masao OHNO A Preliminary Report on the Photosynthetic Activity of Phyllophora Antarctica A. et E. S. GEPP, Antarctic Red Alga |
topic_facet |
geo |
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(39.583,39.583,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) |
geographic |
Antarctic Breaker East Ongul Island Ongul Ongul Island |
geographic_facet |
Antarctic Breaker East Ongul Island Ongul 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 |
doi:10.15094/00007888 0085-7289 2432-079X https://doaj.org/article/67ba837be0534391909d1595ec34619d |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00007888 |
_version_ |
1766186328908627968 |