Microalgal Biodiversity at Antarctica 2001/04
A collection of about 20 isolates of Antarctic microalgae from the Windmill Islands region, around Casey Station has been established in the University of Malaya Algae Culture Collection (UMACC). The Antarctic microalgae in the collection includes Chlamydomonas, Chlorella, Stichococcus, Navicula. Ul...
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ftands:oai:ands.org.au::1596942 2023-05-15T13:34:12+02:00 Microalgal Biodiversity at Antarctica 2001/04 Australian Antarctic Data Centre (isManagedBy) https://researchdata.edu.au/microalgal-biodiversity-antarctica-200104/1596942 unknown Atlas of Living Australia https://researchdata.edu.au/microalgal-biodiversity-antarctica-200104/1596942 ala.org.au/dr16263 Australian Antarctic Data Centre dataset ftands 2022-12-19T23:52:02Z A collection of about 20 isolates of Antarctic microalgae from the Windmill Islands region, around Casey Station has been established in the University of Malaya Algae Culture Collection (UMACC). The Antarctic microalgae in the collection includes Chlamydomonas, Chlorella, Stichococcus, Navicula. Ulothrix and Chlorosarcina. Comparative studies on the effect of global warming and UVR stress on these Antarctic microalgae and the tropical collection are being conducted. From the abstract of one of the referenced papers: The growth, biochemical composition and fatty acid profiles of six Antarctic microalgae cultured at different temperatures, ranging from 4, 6, 9, 14, 20 to 30 degrees C, were compared. The algae were isolated from seawater, freshwater, soil and snow samples collected during our recent expeditions to Casey, Antarctica, and are currently deposited in the University of Malaya Algae Culture Collection (UMACC). The algae chosen for the study were Chlamydomonas UMACC 229, Chlorella UMACC 234, Chlorella UMACC 237, Klebsormidium UMACC 227, Navicula UMAC 231 and Stichococcus UMACC 238. All the isolates could grow at temperatures up to 20 degrees C; three isolates, namely Navicula UMACC 231 and the two Chlorella isolates (UMACC 234 and UMACC 237) grew even at 30 degrees C. Both Chlorella UMACC 234 and Stichococcus UMAC 238 had broad optimal temperatures for growth, ranging from 6 to 20 degrees C (growth rate = 0.19 - 0.22 per day) and 4 to 14 degrees C (growth rate = 0.13 - 0.16 per day), respectively. In constrast, optimal growth temperatures for Navicula UMACC 231 and Chlamydomonas UMACC 229 were 4 degrees C (growth rate = 0.34 per day) and 6 to 9 degrees C (growth rate = 0.39 - 0.40 per day), respectively. The protein content of the Antarctic algae was markedly affected by culture temperature. All except Navicula UMACC 231 and Stichococcus UMACC contained higher amount of proteins when grown at low temperatures (6-9 degrees C). The percentage of PUFA, especially 20:5 in Navicula UMACC 231 decreased with ... Dataset Antarc* Antarctic Antarctica Windmill Islands Research Data Australia (Australian National Data Service - ANDS) Antarctic The Antarctic Windmill Islands ENVELOPE(110.417,110.417,-66.350,-66.350) Casey Station ENVELOPE(110.528,110.528,-66.282,-66.282) |
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Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
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ftands |
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description |
A collection of about 20 isolates of Antarctic microalgae from the Windmill Islands region, around Casey Station has been established in the University of Malaya Algae Culture Collection (UMACC). The Antarctic microalgae in the collection includes Chlamydomonas, Chlorella, Stichococcus, Navicula. Ulothrix and Chlorosarcina. Comparative studies on the effect of global warming and UVR stress on these Antarctic microalgae and the tropical collection are being conducted. From the abstract of one of the referenced papers: The growth, biochemical composition and fatty acid profiles of six Antarctic microalgae cultured at different temperatures, ranging from 4, 6, 9, 14, 20 to 30 degrees C, were compared. The algae were isolated from seawater, freshwater, soil and snow samples collected during our recent expeditions to Casey, Antarctica, and are currently deposited in the University of Malaya Algae Culture Collection (UMACC). The algae chosen for the study were Chlamydomonas UMACC 229, Chlorella UMACC 234, Chlorella UMACC 237, Klebsormidium UMACC 227, Navicula UMAC 231 and Stichococcus UMACC 238. All the isolates could grow at temperatures up to 20 degrees C; three isolates, namely Navicula UMACC 231 and the two Chlorella isolates (UMACC 234 and UMACC 237) grew even at 30 degrees C. Both Chlorella UMACC 234 and Stichococcus UMAC 238 had broad optimal temperatures for growth, ranging from 6 to 20 degrees C (growth rate = 0.19 - 0.22 per day) and 4 to 14 degrees C (growth rate = 0.13 - 0.16 per day), respectively. In constrast, optimal growth temperatures for Navicula UMACC 231 and Chlamydomonas UMACC 229 were 4 degrees C (growth rate = 0.34 per day) and 6 to 9 degrees C (growth rate = 0.39 - 0.40 per day), respectively. The protein content of the Antarctic algae was markedly affected by culture temperature. All except Navicula UMACC 231 and Stichococcus UMACC contained higher amount of proteins when grown at low temperatures (6-9 degrees C). The percentage of PUFA, especially 20:5 in Navicula UMACC 231 decreased with ... |
author2 |
Australian Antarctic Data Centre (isManagedBy) |
format |
Dataset |
title |
Microalgal Biodiversity at Antarctica 2001/04 |
spellingShingle |
Microalgal Biodiversity at Antarctica 2001/04 |
title_short |
Microalgal Biodiversity at Antarctica 2001/04 |
title_full |
Microalgal Biodiversity at Antarctica 2001/04 |
title_fullStr |
Microalgal Biodiversity at Antarctica 2001/04 |
title_full_unstemmed |
Microalgal Biodiversity at Antarctica 2001/04 |
title_sort |
microalgal biodiversity at antarctica 2001/04 |
publisher |
Atlas of Living Australia |
url |
https://researchdata.edu.au/microalgal-biodiversity-antarctica-200104/1596942 |
long_lat |
ENVELOPE(110.417,110.417,-66.350,-66.350) ENVELOPE(110.528,110.528,-66.282,-66.282) |
geographic |
Antarctic The Antarctic Windmill Islands Casey Station |
geographic_facet |
Antarctic The Antarctic Windmill Islands Casey Station |
genre |
Antarc* Antarctic Antarctica Windmill Islands |
genre_facet |
Antarc* Antarctic Antarctica Windmill Islands |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.edu.au/microalgal-biodiversity-antarctica-200104/1596942 ala.org.au/dr16263 |
_version_ |
1766049961662742528 |