Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica
Abstract Wright Valley, Victoria Land contains numerous aquatic habitats suitable for the growth of algae in summer. Excepting diatoms and lichen phycobionts, algal diversity and distribution in the valley was documented. Using cultures and environmental cloning eight cyanobacterial and 14 eukaryoti...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0954102015000164 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000164 |
id |
crcambridgeupr:10.1017/s0954102015000164 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0954102015000164 2024-03-03T08:38:37+00:00 Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica Novis, Phil M. Aislabie, Jackie Turner, Susan McLeod, Malcolm 2015 http://dx.doi.org/10.1017/s0954102015000164 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000164 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 27, issue 5, page 439-454 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 crcambridgeupr https://doi.org/10.1017/s0954102015000164 2024-02-08T08:43:49Z Abstract Wright Valley, Victoria Land contains numerous aquatic habitats suitable for the growth of algae in summer. Excepting diatoms and lichen phycobionts, algal diversity and distribution in the valley was documented. Using cultures and environmental cloning eight cyanobacterial and 14 eukaryotic species were revealed. The cyanobacterium Microcoleus vaginatus and the chlorophycean Chlorococcum sp. 1 were the most common, both occurring in more than one habitat (ponds, soils or streams). Ponds harboured the most diverse communities. Habitat specialization was rare. Chlamydomonads were not found outside ponds, but species capable of zoospore production were able to colonize ponds and soils. Nostocalean cyanobacteria were not detected. Results suggest dispersal within and between valleys, with little evidence of Antarctic endemism. All but one cyanobacterium with similar internally transcribed spacer (ITS) length to clones from Miers Valley proved to be different species when 16S rRNA gene sequences were also considered; thus, ITS length is unreliable for assessing identity and biogeography of these cyanobacteria. Comparison with a 454 16S rRNA gene soil dataset from Wright Valley indicated the occurrence of only one of the cyanobacterial species, the distribution of which may be limited by salinity. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Victoria Land Cambridge University Press Antarctic Victoria Land Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Wright Valley ENVELOPE(161.833,161.833,-77.517,-77.517) Miers Valley ENVELOPE(164.200,164.200,-78.100,-78.100) Antarctic Science 27 5 439 454 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Novis, Phil M. Aislabie, Jackie Turner, Susan McLeod, Malcolm Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Wright Valley, Victoria Land contains numerous aquatic habitats suitable for the growth of algae in summer. Excepting diatoms and lichen phycobionts, algal diversity and distribution in the valley was documented. Using cultures and environmental cloning eight cyanobacterial and 14 eukaryotic species were revealed. The cyanobacterium Microcoleus vaginatus and the chlorophycean Chlorococcum sp. 1 were the most common, both occurring in more than one habitat (ponds, soils or streams). Ponds harboured the most diverse communities. Habitat specialization was rare. Chlamydomonads were not found outside ponds, but species capable of zoospore production were able to colonize ponds and soils. Nostocalean cyanobacteria were not detected. Results suggest dispersal within and between valleys, with little evidence of Antarctic endemism. All but one cyanobacterium with similar internally transcribed spacer (ITS) length to clones from Miers Valley proved to be different species when 16S rRNA gene sequences were also considered; thus, ITS length is unreliable for assessing identity and biogeography of these cyanobacteria. Comparison with a 454 16S rRNA gene soil dataset from Wright Valley indicated the occurrence of only one of the cyanobacterial species, the distribution of which may be limited by salinity. |
format |
Article in Journal/Newspaper |
author |
Novis, Phil M. Aislabie, Jackie Turner, Susan McLeod, Malcolm |
author_facet |
Novis, Phil M. Aislabie, Jackie Turner, Susan McLeod, Malcolm |
author_sort |
Novis, Phil M. |
title |
Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
title_short |
Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
title_full |
Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
title_fullStr |
Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
title_full_unstemmed |
Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica |
title_sort |
chlorophyta, xanthophyceae and cyanobacteria in wright valley, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/s0954102015000164 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000164 |
long_lat |
ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(161.833,161.833,-77.517,-77.517) ENVELOPE(164.200,164.200,-78.100,-78.100) |
geographic |
Antarctic Victoria Land Miers Wright Valley Miers Valley |
geographic_facet |
Antarctic Victoria Land Miers Wright Valley Miers Valley |
genre |
Antarc* Antarctic Antarctic Science Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Victoria Land |
op_source |
Antarctic Science volume 27, issue 5, page 439-454 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102015000164 |
container_title |
Antarctic Science |
container_volume |
27 |
container_issue |
5 |
container_start_page |
439 |
op_container_end_page |
454 |
_version_ |
1792507032193990656 |