Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic.
The two native Antarctic vascular plant species, Colobanthus quitensis and Deschampsia antarctica, were sampled from 15 points along a 1480 km latitudinal transect from South Georgia (54°S, 36°W) through to the Léonie Islands on the western Antarctic Peninsula (67°S, 68°W). Roots of plants were clea...
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Institute of Arctic and Alpine Research, University of Colorado
2008
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ftnerc:oai:nora.nerc.ac.uk:6003 2024-06-09T07:40:04+00:00 Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. Upson, R. Newsham, K.K. Read, D.J. 2008 text http://nora.nerc.ac.uk/id/eprint/6003/ https://nora.nerc.ac.uk/id/eprint/6003/1/Upson_et_al._2008.pdf http://instaar.metapress.com/content/84612509777314t7/ en eng Institute of Arctic and Alpine Research, University of Colorado https://nora.nerc.ac.uk/id/eprint/6003/1/Upson_et_al._2008.pdf Upson, R.; Newsham, K.K. orcid:0000-0002-9108-0936 Read, D.J. 2008 Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. Arctic, Antarctic, and Alpine Research, 40 (3). 592-599. https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2 <https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2> Botany Biology and Microbiology Ecology and Environment Publication - Article PeerReviewed 2008 ftnerc https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2 2024-05-15T08:52:26Z The two native Antarctic vascular plant species, Colobanthus quitensis and Deschampsia antarctica, were sampled from 15 points along a 1480 km latitudinal transect from South Georgia (54°S, 36°W) through to the Léonie Islands on the western Antarctic Peninsula (67°S, 68°W). Roots of plants were cleared and stained and fungal structures recorded. The commonest type of fungal association was that formed by dark septate endophytes (DSE): 32% and 27% of the root lengths of C. quitensis and D. antarctica were colonized by hyphae of these fungi, respectively. Hyaline and stained septate hyphae were also common in roots. Coarse and fine arbuscular mycorrhiza (AM) occurred in the roots of both plant species from South Georgia, and fine AM colonization with occasional arbuscules was also sporadically recorded in roots from the South Shetland Islands, suggesting functional associations between higher plants and AM symbionts. Fungal abundances were not associated with soil chemistry, but AM abundance was associated with seasonal surface air temperature, with lower colonization in more southerly, colder habitats. We conclude that DSE are widespread, and that AM fungi are sparse but present and decline in abundance at higher latitudes, in the roots of C. quitensis and D. antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctic and Alpine Research Antarctic Peninsula Antarctica Arctic Léonie Islands South Shetland Islands Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula South Shetland Islands Léonie ENVELOPE(-68.350,-68.350,-67.600,-67.600) Léonie Islands ENVELOPE(-68.350,-68.350,-67.600,-67.600) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Botany Biology and Microbiology Ecology and Environment |
spellingShingle |
Botany Biology and Microbiology Ecology and Environment Upson, R. Newsham, K.K. Read, D.J. Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
topic_facet |
Botany Biology and Microbiology Ecology and Environment |
description |
The two native Antarctic vascular plant species, Colobanthus quitensis and Deschampsia antarctica, were sampled from 15 points along a 1480 km latitudinal transect from South Georgia (54°S, 36°W) through to the Léonie Islands on the western Antarctic Peninsula (67°S, 68°W). Roots of plants were cleared and stained and fungal structures recorded. The commonest type of fungal association was that formed by dark septate endophytes (DSE): 32% and 27% of the root lengths of C. quitensis and D. antarctica were colonized by hyphae of these fungi, respectively. Hyaline and stained septate hyphae were also common in roots. Coarse and fine arbuscular mycorrhiza (AM) occurred in the roots of both plant species from South Georgia, and fine AM colonization with occasional arbuscules was also sporadically recorded in roots from the South Shetland Islands, suggesting functional associations between higher plants and AM symbionts. Fungal abundances were not associated with soil chemistry, but AM abundance was associated with seasonal surface air temperature, with lower colonization in more southerly, colder habitats. We conclude that DSE are widespread, and that AM fungi are sparse but present and decline in abundance at higher latitudes, in the roots of C. quitensis and D. antarctica. |
format |
Article in Journal/Newspaper |
author |
Upson, R. Newsham, K.K. Read, D.J. |
author_facet |
Upson, R. Newsham, K.K. Read, D.J. |
author_sort |
Upson, R. |
title |
Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
title_short |
Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
title_full |
Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
title_fullStr |
Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
title_full_unstemmed |
Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. |
title_sort |
root-fungal associations of colobanthus quitensis and deschampsia antarctica in the maritime and sub-antarctic. |
publisher |
Institute of Arctic and Alpine Research, University of Colorado |
publishDate |
2008 |
url |
http://nora.nerc.ac.uk/id/eprint/6003/ https://nora.nerc.ac.uk/id/eprint/6003/1/Upson_et_al._2008.pdf http://instaar.metapress.com/content/84612509777314t7/ |
long_lat |
ENVELOPE(-68.350,-68.350,-67.600,-67.600) ENVELOPE(-68.350,-68.350,-67.600,-67.600) |
geographic |
Antarctic Antarctic Peninsula South Shetland Islands Léonie Léonie Islands |
geographic_facet |
Antarctic Antarctic Peninsula South Shetland Islands Léonie Léonie Islands |
genre |
Antarc* Antarctic Antarctic and Alpine Research Antarctic Peninsula Antarctica Arctic Léonie Islands South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic and Alpine Research Antarctic Peninsula Antarctica Arctic Léonie Islands South Shetland Islands |
op_relation |
https://nora.nerc.ac.uk/id/eprint/6003/1/Upson_et_al._2008.pdf Upson, R.; Newsham, K.K. orcid:0000-0002-9108-0936 Read, D.J. 2008 Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. Arctic, Antarctic, and Alpine Research, 40 (3). 592-599. https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2 <https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2> |
op_doi |
https://doi.org/10.1657/1523-0430(07-057)[UPSON]2.0.CO;2 |
_version_ |
1801383571479330816 |