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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Main Authors: Upson, R., Newsham, K.K., Read, D.J.
Format: Article in Journal/Newspaper
Language:English
Published: Institute of Arctic and Alpine Research, University of Colorado 2008
Subjects:
Online Access: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/
id ftnerc:oai:nora.nerc.ac.uk:6003
record_format openpolar
spelling 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
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