Mycorrhizal benefit in two low arctic herbs increases with increasing temperature
Climate change may influence the relationship between arctic plants and their symbiotic mycorrhizal fungi. The benefit of the symbiosis for the host plant affects vegetation succession and may be a key parameter in predicting vegetation responses to warming. We investigated the mycorrhizal benefit i...
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Online Access: | http://dx.doi.org/10.3732/ajb.94.8.1309 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.8.1309 |
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crwiley:10.3732/ajb.94.8.1309 2024-09-15T18:02:12+00:00 Mycorrhizal benefit in two low arctic herbs increases with increasing temperature Kytöviita, Minna‐Maarit Ruotsalainen, Anna Liisa 2007 http://dx.doi.org/10.3732/ajb.94.8.1309 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.8.1309 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 94, issue 8, page 1309-1315 ISSN 0002-9122 1537-2197 journal-article 2007 crwiley https://doi.org/10.3732/ajb.94.8.1309 2024-08-15T04:18:39Z Climate change may influence the relationship between arctic plants and their symbiotic mycorrhizal fungi. The benefit of the symbiosis for the host plant affects vegetation succession and may be a key parameter in predicting vegetation responses to warming. We investigated the mycorrhizal benefit in the low arctic perennial herbs Potentilla crantzii and Ranunculus acris in symbiosis with the arbuscular mycorrhizal fungus Glomus claroideum. Temperature response in the mycorrhiza‐mediated acquisition of nitrogen (N) and phosphorus (P), growth, and photosynthetic nutrient‐use efficiency were determined. Near the average natural soil temperature (12°C), mycorrhiza did not improve plant nutrient capture but significantly enhanced plant P capture at 17°C. Photosynthetic nitrogen‐use efficiency was higher at 17°C than at 12°C and was further increased by mycorrhiza at 17°C. Photosynthetic phosphorus‐use efficiency was not affected by temperature or mycorrhiza. Increasing the growing temperature by 5°C increased the relative shoot growth rate by 15%. Mycorrhizal symbiosis did not enhance plant growth rate, but the plants gained between 20% and 90% more mycorrhiza‐mediated P when grown at higher temperature. The results suggest that these low arctic species have good potential to respond positively to increasing temperatures. Article in Journal/Newspaper Climate change Wiley Online Library American Journal of Botany 94 8 1309 1315 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Climate change may influence the relationship between arctic plants and their symbiotic mycorrhizal fungi. The benefit of the symbiosis for the host plant affects vegetation succession and may be a key parameter in predicting vegetation responses to warming. We investigated the mycorrhizal benefit in the low arctic perennial herbs Potentilla crantzii and Ranunculus acris in symbiosis with the arbuscular mycorrhizal fungus Glomus claroideum. Temperature response in the mycorrhiza‐mediated acquisition of nitrogen (N) and phosphorus (P), growth, and photosynthetic nutrient‐use efficiency were determined. Near the average natural soil temperature (12°C), mycorrhiza did not improve plant nutrient capture but significantly enhanced plant P capture at 17°C. Photosynthetic nitrogen‐use efficiency was higher at 17°C than at 12°C and was further increased by mycorrhiza at 17°C. Photosynthetic phosphorus‐use efficiency was not affected by temperature or mycorrhiza. Increasing the growing temperature by 5°C increased the relative shoot growth rate by 15%. Mycorrhizal symbiosis did not enhance plant growth rate, but the plants gained between 20% and 90% more mycorrhiza‐mediated P when grown at higher temperature. The results suggest that these low arctic species have good potential to respond positively to increasing temperatures. |
format |
Article in Journal/Newspaper |
author |
Kytöviita, Minna‐Maarit Ruotsalainen, Anna Liisa |
spellingShingle |
Kytöviita, Minna‐Maarit Ruotsalainen, Anna Liisa Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
author_facet |
Kytöviita, Minna‐Maarit Ruotsalainen, Anna Liisa |
author_sort |
Kytöviita, Minna‐Maarit |
title |
Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
title_short |
Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
title_full |
Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
title_fullStr |
Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
title_full_unstemmed |
Mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
title_sort |
mycorrhizal benefit in two low arctic herbs increases with increasing temperature |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.3732/ajb.94.8.1309 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.8.1309 |
genre |
Climate change |
genre_facet |
Climate change |
op_source |
American Journal of Botany volume 94, issue 8, page 1309-1315 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.3732/ajb.94.8.1309 |
container_title |
American Journal of Botany |
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94 |
container_issue |
8 |
container_start_page |
1309 |
op_container_end_page |
1315 |
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1810439628643106816 |