Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic
Abstract Xanthoria elegans has a broad ecological amplitude, world-wide distribution and includes morphological variants which differ markedly with respect to colour, form and frequency of apothecia. Distinctive thallus forms are associated with different habitats. Samples from two contrasting habit...
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1989
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Online Access: | http://dx.doi.org/10.1017/s0024282989000253 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282989000253 |
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crcambridgeupr:10.1017/s0024282989000253 2024-03-03T08:41:32+00:00 Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic Fahselt, Dianne Krol, Marianna 1989 http://dx.doi.org/10.1017/s0024282989000253 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282989000253 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Lichenologist volume 21, issue 2, page 135-146 ISSN 0024-2829 1096-1135 Ecology, Evolution, Behavior and Systematics journal-article 1989 crcambridgeupr https://doi.org/10.1017/s0024282989000253 2024-02-08T08:48:30Z Abstract Xanthoria elegans has a broad ecological amplitude, world-wide distribution and includes morphological variants which differ markedly with respect to colour, form and frequency of apothecia. Distinctive thallus forms are associated with different habitats. Samples from two contrasting habitats were studied on Ellesmere Island in the Canadian High Arctic. Carotenoids, polyphenolic products and isoenzymes were examined to establish whether two thallus types were biochemically distinct. Pigments were comparable in both morphological variants, as were approximately half of the most frequently occurring enzyme forms. Enzymatic similarity between the two resembled that between conspecific populations of other lichens. On the basis of the chemical attributes investigated, the thallus forms did not warrant recognition as fundamentally distinct entities, but were merely variants of an ecologically versatile and extremely plastic species. Article in Journal/Newspaper Arctic Ellesmere Island Cambridge University Press Arctic Ellesmere Island The Lichenologist 21 2 135 146 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Fahselt, Dianne Krol, Marianna Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract Xanthoria elegans has a broad ecological amplitude, world-wide distribution and includes morphological variants which differ markedly with respect to colour, form and frequency of apothecia. Distinctive thallus forms are associated with different habitats. Samples from two contrasting habitats were studied on Ellesmere Island in the Canadian High Arctic. Carotenoids, polyphenolic products and isoenzymes were examined to establish whether two thallus types were biochemically distinct. Pigments were comparable in both morphological variants, as were approximately half of the most frequently occurring enzyme forms. Enzymatic similarity between the two resembled that between conspecific populations of other lichens. On the basis of the chemical attributes investigated, the thallus forms did not warrant recognition as fundamentally distinct entities, but were merely variants of an ecologically versatile and extremely plastic species. |
format |
Article in Journal/Newspaper |
author |
Fahselt, Dianne Krol, Marianna |
author_facet |
Fahselt, Dianne Krol, Marianna |
author_sort |
Fahselt, Dianne |
title |
Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
title_short |
Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
title_full |
Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
title_fullStr |
Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
title_full_unstemmed |
Biochemical Comparison of two Ecologically Distinctive Forms of Xanthoria Elegans in the Canadian High Arctic |
title_sort |
biochemical comparison of two ecologically distinctive forms of xanthoria elegans in the canadian high arctic |
publisher |
Cambridge University Press (CUP) |
publishDate |
1989 |
url |
http://dx.doi.org/10.1017/s0024282989000253 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282989000253 |
geographic |
Arctic Ellesmere Island |
geographic_facet |
Arctic Ellesmere Island |
genre |
Arctic Ellesmere Island |
genre_facet |
Arctic Ellesmere Island |
op_source |
The Lichenologist volume 21, issue 2, page 135-146 ISSN 0024-2829 1096-1135 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0024282989000253 |
container_title |
The Lichenologist |
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21 |
container_issue |
2 |
container_start_page |
135 |
op_container_end_page |
146 |
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1792497241548652544 |