Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station
As part of the studies of the nitrogen flows in the Antarctic terrestrial ecosystems, nitrogen-fixing activities of moss communities, algae and lichens, collected in various ice-free areas near Syowa Station, East Antarctica, were measured by the acetylene reduction method. Moss communities which gr...
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Department of Biology, School of Education, Waseda University
1986
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ftnipr:oai:nipr.repo.nii.ac.jp:00000710 2023-05-15T13:47:58+02:00 Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station Takayuki Nakatsubo Yoshio Ino 1986-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=710 http://id.nii.ac.jp/1291/00000710/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=710&item_no=1&attribute_id=18&file_no=1 en eng Department of Biology, School of Education, Waseda University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=710 http://id.nii.ac.jp/1291/00000710/ AA00733517 Memoirs of National Institute of Polar Research. Ser. E, Biology and medical science, 37, 1-10(1986-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=710&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1986 ftnipr 2022-11-12T19:41:37Z As part of the studies of the nitrogen flows in the Antarctic terrestrial ecosystems, nitrogen-fixing activities of moss communities, algae and lichens, collected in various ice-free areas near Syowa Station, East Antarctica, were measured by the acetylene reduction method. Moss communities which grew on the sand at dry habitats had dense cover of cyanobacteria and showed high nitrogen-fixing activities, while those at wet habitats near streams showed weak or no activity. Folious colonies of Nostoc sp. Showed significant activities. Some colonies of Chlorophyceae Prasiola crispa had weak activities which were probably due to associating cyanobacteria. No activity was detected for lichen species tested. The results suggest that nitrogen fixation by cyanobacteria, especially those epiphytic on mosses, plays an important role in the nitrogen budgets of terrestrial ecosystems developed in dry ice-free areas near Syowa Station. Report Antarc* Antarctic Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Antarctic The Antarctic East Antarctica Syowa Station |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
As part of the studies of the nitrogen flows in the Antarctic terrestrial ecosystems, nitrogen-fixing activities of moss communities, algae and lichens, collected in various ice-free areas near Syowa Station, East Antarctica, were measured by the acetylene reduction method. Moss communities which grew on the sand at dry habitats had dense cover of cyanobacteria and showed high nitrogen-fixing activities, while those at wet habitats near streams showed weak or no activity. Folious colonies of Nostoc sp. Showed significant activities. Some colonies of Chlorophyceae Prasiola crispa had weak activities which were probably due to associating cyanobacteria. No activity was detected for lichen species tested. The results suggest that nitrogen fixation by cyanobacteria, especially those epiphytic on mosses, plays an important role in the nitrogen budgets of terrestrial ecosystems developed in dry ice-free areas near Syowa Station. |
format |
Report |
author |
Takayuki Nakatsubo Yoshio Ino |
spellingShingle |
Takayuki Nakatsubo Yoshio Ino Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
author_facet |
Takayuki Nakatsubo Yoshio Ino |
author_sort |
Takayuki Nakatsubo |
title |
Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
title_short |
Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
title_full |
Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
title_fullStr |
Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
title_full_unstemmed |
Nitrogen cycling in an Antarctic ecosystem. 1. Biological nitrogen fixation in the vicinity of Syowa Station |
title_sort |
nitrogen cycling in an antarctic ecosystem. 1. biological nitrogen fixation in the vicinity of syowa station |
publisher |
Department of Biology, School of Education, Waseda University |
publishDate |
1986 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=710 http://id.nii.ac.jp/1291/00000710/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=710&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic The Antarctic East Antarctica Syowa Station |
geographic_facet |
Antarctic The Antarctic East Antarctica Syowa Station |
genre |
Antarc* Antarctic Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=710 http://id.nii.ac.jp/1291/00000710/ AA00733517 Memoirs of National Institute of Polar Research. Ser. E, Biology and medical science, 37, 1-10(1986-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=710&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248204681084928 |