Influence of the host on three sub‐Arctic annual facultative root hemiparasites
SUMMARY Light saturated rates of photosynthesis (A sat ), water use‐efficiency (WUE) and photosynthetic nitrogen use‐efficiency (PNUE) were measured for three sub‐Arctic annual root hemiparasites ( Rhinanthus minor L., Euphrasia frigida L. and Melampyrum sylvaticum L.) growing in the Torneträsk regi...
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Online Access: | http://dx.doi.org/10.1111/j.1469-8137.1994.tb04257.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1994.tb04257.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x |
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crwiley:10.1111/j.1469-8137.1994.tb04257.x 2024-06-02T08:01:44+00:00 Influence of the host on three sub‐Arctic annual facultative root hemiparasites II. Gas exchange characteristics and resource use‐efficiency SEEL, W. E. PRESS, M. C. 1994 http://dx.doi.org/10.1111/j.1469-8137.1994.tb04257.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1994.tb04257.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor New Phytologist volume 127, issue 1, page 37-44 ISSN 0028-646X 1469-8137 journal-article 1994 crwiley https://doi.org/10.1111/j.1469-8137.1994.tb04257.x 2024-05-03T11:19:33Z SUMMARY Light saturated rates of photosynthesis (A sat ), water use‐efficiency (WUE) and photosynthetic nitrogen use‐efficiency (PNUE) were measured for three sub‐Arctic annual root hemiparasites ( Rhinanthus minor L., Euphrasia frigida L. and Melampyrum sylvaticum L.) growing in the Torneträsk region of Swedish Lapland. Photosynthesis and resource use‐efficiency of the hemiparasites were dependent on (i) attachment to a host and (ii) the nature of the host to which attachment was made. The highest rates of A sat were recorded in those hemiparasites attached to legumes and the lowest rates were recorded in those which were not attached to a host. Intermediate rates of A sat were recorded in hemiparasites attached to grasses. A sat and leaf conductance were more closely related in attached than in unattached hemiparasites, WUE was greatest in those hemiparasites attached to legumes, but was not a simple function of nitrogen supply. PNUE was greater in attached than in unattached plants, but was inversely related to the total‐nitrogen concentration of the leaves. In an earlier paper we demonstrated that the growth of these hemiparasites is highly host dependent. Here we demonstrate that the carbon, nitrogen and water relations of these plants are also highly host dependent. Article in Journal/Newspaper Arctic Euphrasia frigida Lapland Wiley Online Library Arctic Torneträsk ENVELOPE(18.861,18.861,68.392,68.392) New Phytologist 127 1 37 44 |
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English |
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SUMMARY Light saturated rates of photosynthesis (A sat ), water use‐efficiency (WUE) and photosynthetic nitrogen use‐efficiency (PNUE) were measured for three sub‐Arctic annual root hemiparasites ( Rhinanthus minor L., Euphrasia frigida L. and Melampyrum sylvaticum L.) growing in the Torneträsk region of Swedish Lapland. Photosynthesis and resource use‐efficiency of the hemiparasites were dependent on (i) attachment to a host and (ii) the nature of the host to which attachment was made. The highest rates of A sat were recorded in those hemiparasites attached to legumes and the lowest rates were recorded in those which were not attached to a host. Intermediate rates of A sat were recorded in hemiparasites attached to grasses. A sat and leaf conductance were more closely related in attached than in unattached hemiparasites, WUE was greatest in those hemiparasites attached to legumes, but was not a simple function of nitrogen supply. PNUE was greater in attached than in unattached plants, but was inversely related to the total‐nitrogen concentration of the leaves. In an earlier paper we demonstrated that the growth of these hemiparasites is highly host dependent. Here we demonstrate that the carbon, nitrogen and water relations of these plants are also highly host dependent. |
format |
Article in Journal/Newspaper |
author |
SEEL, W. E. PRESS, M. C. |
spellingShingle |
SEEL, W. E. PRESS, M. C. Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
author_facet |
SEEL, W. E. PRESS, M. C. |
author_sort |
SEEL, W. E. |
title |
Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
title_short |
Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
title_full |
Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
title_fullStr |
Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
title_full_unstemmed |
Influence of the host on three sub‐Arctic annual facultative root hemiparasites |
title_sort |
influence of the host on three sub‐arctic annual facultative root hemiparasites |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1469-8137.1994.tb04257.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1994.tb04257.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1994.tb04257.x |
long_lat |
ENVELOPE(18.861,18.861,68.392,68.392) |
geographic |
Arctic Torneträsk |
geographic_facet |
Arctic Torneträsk |
genre |
Arctic Euphrasia frigida Lapland |
genre_facet |
Arctic Euphrasia frigida Lapland |
op_source |
New Phytologist volume 127, issue 1, page 37-44 ISSN 0028-646X 1469-8137 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-8137.1994.tb04257.x |
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New Phytologist |
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127 |
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1 |
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37 |
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44 |
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1800746123741102080 |