Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae)
Eriophorum vaginatum and E. angustifolium are dominant arctic sedges of the well‐drained tussock tundra and the permanently flooded wet‐sedge tundra, respectively. We determined diurnal courses of gas exchange and water relations of the two species in their natural habitat and compared their respons...
Published in: | American Journal of Botany |
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crwiley:10.2307/2446442 2024-05-19T07:35:30+00:00 Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) Gebauer, Renate L. E. Reynolds, James F. Tenhunen, John D. U.S. Department of Energy 1998 http://dx.doi.org/10.2307/2446442 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2446442 https://onlinelibrary.wiley.com/doi/pdf/10.2307/2446442 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.2307%2F2446442 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 85, issue 4, page 592-599 ISSN 0002-9122 1537-2197 Plant Science Genetics Ecology, Evolution, Behavior and Systematics journal-article 1998 crwiley https://doi.org/10.2307/2446442 2024-04-22T07:35:34Z Eriophorum vaginatum and E. angustifolium are dominant arctic sedges of the well‐drained tussock tundra and the permanently flooded wet‐sedge tundra, respectively. We determined diurnal courses of gas exchange and water relations of the two species in their natural habitat and compared their responses to changes in light, air temperature, and humidity. Mean photosynthetic response to light was similar between E. angustifolium and E. vaginatum and carbon gain in both species was light limited during most of the growing season. On sunny and dry days, both species closed stomata in response to high leaf‐to‐air vapor pressure deficits. Even though E. angustifolium was growing in standing water, it exhibited a tighter control of transpirational water loss and had lower hydraulic conductivity in the soil‐root‐shoot pathway than E. vaginatum . The different response pattern between the two species is discussed in the context of differences in habitat conditions. Article in Journal/Newspaper Arctic Eriophorum Tundra Wiley Online Library American Journal of Botany 85 4 592 599 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
topic |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
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Plant Science Genetics Ecology, Evolution, Behavior and Systematics Gebauer, Renate L. E. Reynolds, James F. Tenhunen, John D. Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
topic_facet |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
description |
Eriophorum vaginatum and E. angustifolium are dominant arctic sedges of the well‐drained tussock tundra and the permanently flooded wet‐sedge tundra, respectively. We determined diurnal courses of gas exchange and water relations of the two species in their natural habitat and compared their responses to changes in light, air temperature, and humidity. Mean photosynthetic response to light was similar between E. angustifolium and E. vaginatum and carbon gain in both species was light limited during most of the growing season. On sunny and dry days, both species closed stomata in response to high leaf‐to‐air vapor pressure deficits. Even though E. angustifolium was growing in standing water, it exhibited a tighter control of transpirational water loss and had lower hydraulic conductivity in the soil‐root‐shoot pathway than E. vaginatum . The different response pattern between the two species is discussed in the context of differences in habitat conditions. |
author2 |
U.S. Department of Energy |
format |
Article in Journal/Newspaper |
author |
Gebauer, Renate L. E. Reynolds, James F. Tenhunen, John D. |
author_facet |
Gebauer, Renate L. E. Reynolds, James F. Tenhunen, John D. |
author_sort |
Gebauer, Renate L. E. |
title |
Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
title_short |
Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
title_full |
Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
title_fullStr |
Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
title_full_unstemmed |
Diurnal patterns of CO 2 and H 2 O exchange of the Arctic sedges Eriophorum angustifolium and E. vaginatum (Cyperaceae) |
title_sort |
diurnal patterns of co 2 and h 2 o exchange of the arctic sedges eriophorum angustifolium and e. vaginatum (cyperaceae) |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.2307/2446442 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2446442 https://onlinelibrary.wiley.com/doi/pdf/10.2307/2446442 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.2307%2F2446442 |
genre |
Arctic Eriophorum Tundra |
genre_facet |
Arctic Eriophorum Tundra |
op_source |
American Journal of Botany volume 85, issue 4, page 592-599 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2307/2446442 |
container_title |
American Journal of Botany |
container_volume |
85 |
container_issue |
4 |
container_start_page |
592 |
op_container_end_page |
599 |
_version_ |
1799474219320344576 |