Is vanadium a biometal for boreal cyanolichens?
Summary Molybdenum (Mo) nitrogenase has long been considered the predominant isoenzyme responsible for dinitrogen fixation worldwide. Recent findings have challenged the paradigm of Mo hegemony, and highlighted the role of alternative nitrogenases, such as the vanadium‐nitrogenase. Here, we first ch...
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Online Access: | http://dx.doi.org/10.1111/nph.12777 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.12777 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.12777 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 |
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crwiley:10.1111/nph.12777 2024-04-28T08:40:00+00:00 Is vanadium a biometal for boreal cyanolichens? Darnajoux, Romain Constantin, Jérôme Miadlikowska, Jolanta Lutzoni, François Bellenger, Jean‐Philippe 2014 http://dx.doi.org/10.1111/nph.12777 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.12777 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.12777 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 New Phytologist volume 202, issue 3, page 765-771 ISSN 0028-646X 1469-8137 Plant Science Physiology journal-article 2014 crwiley https://doi.org/10.1111/nph.12777 2024-04-08T06:53:50Z Summary Molybdenum (Mo) nitrogenase has long been considered the predominant isoenzyme responsible for dinitrogen fixation worldwide. Recent findings have challenged the paradigm of Mo hegemony, and highlighted the role of alternative nitrogenases, such as the vanadium‐nitrogenase. Here, we first characterized homeostasis of vanadium (V) along with other metals in situ in the dinitrogen fixing cyanolichen Peltigera aphthosa . These lichens were sampled in natural sites exposed to various levels of atmospheric metal deposition. These results were compared with laboratory experiments where Anabaena variabilis , which is also hosting the V‐nitrogenase, and a relatively close relative of the lichen cyanobiont Nostoc , was subjected to various levels of V. We report here that V is preferentially allocated to cephalodia, specialized structures where dinitrogen fixation occurs in tri‐membered lichens. This specific allocation is biologically controlled and tightly regulated. Vanadium homeostasis in lichen cephalodia exposed to various V concentrations is comparable to the one observed in Anabaena variabilis and other dinitrogen fixing organisms using V‐nitrogenase. Overall, our findings support current hypotheses that V could be a more important factor in mediating nitrogen input in high latitude ecosystems than previously recognized. They invite the reassessment of current theoretical models linking metal dynamics and dinitrogen fixation in boreal and subarctic ecosystems. Article in Journal/Newspaper Subarctic Wiley Online Library New Phytologist 202 3 765 771 |
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Wiley Online Library |
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crwiley |
language |
English |
topic |
Plant Science Physiology |
spellingShingle |
Plant Science Physiology Darnajoux, Romain Constantin, Jérôme Miadlikowska, Jolanta Lutzoni, François Bellenger, Jean‐Philippe Is vanadium a biometal for boreal cyanolichens? |
topic_facet |
Plant Science Physiology |
description |
Summary Molybdenum (Mo) nitrogenase has long been considered the predominant isoenzyme responsible for dinitrogen fixation worldwide. Recent findings have challenged the paradigm of Mo hegemony, and highlighted the role of alternative nitrogenases, such as the vanadium‐nitrogenase. Here, we first characterized homeostasis of vanadium (V) along with other metals in situ in the dinitrogen fixing cyanolichen Peltigera aphthosa . These lichens were sampled in natural sites exposed to various levels of atmospheric metal deposition. These results were compared with laboratory experiments where Anabaena variabilis , which is also hosting the V‐nitrogenase, and a relatively close relative of the lichen cyanobiont Nostoc , was subjected to various levels of V. We report here that V is preferentially allocated to cephalodia, specialized structures where dinitrogen fixation occurs in tri‐membered lichens. This specific allocation is biologically controlled and tightly regulated. Vanadium homeostasis in lichen cephalodia exposed to various V concentrations is comparable to the one observed in Anabaena variabilis and other dinitrogen fixing organisms using V‐nitrogenase. Overall, our findings support current hypotheses that V could be a more important factor in mediating nitrogen input in high latitude ecosystems than previously recognized. They invite the reassessment of current theoretical models linking metal dynamics and dinitrogen fixation in boreal and subarctic ecosystems. |
format |
Article in Journal/Newspaper |
author |
Darnajoux, Romain Constantin, Jérôme Miadlikowska, Jolanta Lutzoni, François Bellenger, Jean‐Philippe |
author_facet |
Darnajoux, Romain Constantin, Jérôme Miadlikowska, Jolanta Lutzoni, François Bellenger, Jean‐Philippe |
author_sort |
Darnajoux, Romain |
title |
Is vanadium a biometal for boreal cyanolichens? |
title_short |
Is vanadium a biometal for boreal cyanolichens? |
title_full |
Is vanadium a biometal for boreal cyanolichens? |
title_fullStr |
Is vanadium a biometal for boreal cyanolichens? |
title_full_unstemmed |
Is vanadium a biometal for boreal cyanolichens? |
title_sort |
is vanadium a biometal for boreal cyanolichens? |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/nph.12777 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.12777 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.12777 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.12777 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
New Phytologist volume 202, issue 3, page 765-771 ISSN 0028-646X 1469-8137 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/nph.12777 |
container_title |
New Phytologist |
container_volume |
202 |
container_issue |
3 |
container_start_page |
765 |
op_container_end_page |
771 |
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1797570810577158144 |