Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus)
Previous studies of Eurasian tundra reindeer (Rangifer tarandus tarandus) in Norway indicate that their rumen microbiota play a key role in degrading lichen secondary metabolites. We investigated the presence of usnic acid and atranorin in faecal samples from Svalbard reindeer(R. tarandus platyrhync...
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Norwegian Polar Institute
2019
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ftjpolarres:oai:journals.openacademia.net:article/3375 2024-06-23T07:50:36+00:00 Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) Węgrzyn, Michał Hubert Wietrzyk-Pełka, Paulina Galanty, Agnieszka Cykowska-Marzencka, Beata Alterskjær Sundset, Monica 2019-01-22 application/pdf text/html application/epub+zip application/xml https://polarresearch.net/index.php/polar/article/view/3375 https://doi.org/10.33265/polar.v38.3375 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3375/9087 https://polarresearch.net/index.php/polar/article/view/3375/9088 https://polarresearch.net/index.php/polar/article/view/3375/9089 https://polarresearch.net/index.php/polar/article/view/3375/9090 https://polarresearch.net/index.php/polar/article/view/3375 doi:10.33265/polar.v38.3375 Polar Research; Vol 38 (2019) 1751-8369 Lichen secondary metabolites ruminant faecal samples Spitsbergen Arctic info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftjpolarres https://doi.org/10.33265/polar.v38.3375 2024-06-13T23:33:00Z Previous studies of Eurasian tundra reindeer (Rangifer tarandus tarandus) in Norway indicate that their rumen microbiota play a key role in degrading lichen secondary metabolites. We investigated the presence of usnic acid and atranorin in faecal samples from Svalbard reindeer(R. tarandus platyrhynchus). Samples were collected in Bolterdalen valley together with vegetation samples from the study site. The mesic tundra in this area was dominated by vascular plants (59% of vegetation cover). Bryophytes (16%) and lichens (25%) were also present. Qualitative and quantitative analyses of usnic acid and atranorin in lichen and faeces samples were performed using high-performance liquid chromatography. Contents of atranorin averaged 12.49 ± 0.41 mg g–1in the thalli ofStereocaulon alpinum, while the average level of usnic acid was lowest inCladonia mitis(12.75 ± 2.86 mg g–1) and highest inFlavocetraria cucullata(34.87 ± 0.47 mg g–1). Atranorin and usnic acid were detected in the faecal samples, averaging 0.41 ± 0.53 and 0.74 ± 1.11 (mean ± SD) mg g–1dry matter, respectively. The presence of lichen secondary compounds in faeces from Svalbard reindeer shows that lichens are indeed included in their diet, although probably in small amounts because of depleted pastures. Contrary to previous findings in reindeer on mainland Norway, atranorin and usnic acid are not completely degraded or absorbed in Svalbard reindeer. To elucidate the mechanisms behind detoxification of lichen secondary compounds in reindeer, more research is needed on their respective rumen microbiomes and digestive enzymes. Article in Journal/Newspaper Arctic Polar Research Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer Tundra Spitsbergen Polar Research Arctic Svalbard Norway Bolterdalen ENVELOPE(15.945,15.945,78.146,78.146) Polar Research 38 0 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Lichen secondary metabolites ruminant faecal samples Spitsbergen Arctic |
spellingShingle |
Lichen secondary metabolites ruminant faecal samples Spitsbergen Arctic Węgrzyn, Michał Hubert Wietrzyk-Pełka, Paulina Galanty, Agnieszka Cykowska-Marzencka, Beata Alterskjær Sundset, Monica Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
topic_facet |
Lichen secondary metabolites ruminant faecal samples Spitsbergen Arctic |
description |
Previous studies of Eurasian tundra reindeer (Rangifer tarandus tarandus) in Norway indicate that their rumen microbiota play a key role in degrading lichen secondary metabolites. We investigated the presence of usnic acid and atranorin in faecal samples from Svalbard reindeer(R. tarandus platyrhynchus). Samples were collected in Bolterdalen valley together with vegetation samples from the study site. The mesic tundra in this area was dominated by vascular plants (59% of vegetation cover). Bryophytes (16%) and lichens (25%) were also present. Qualitative and quantitative analyses of usnic acid and atranorin in lichen and faeces samples were performed using high-performance liquid chromatography. Contents of atranorin averaged 12.49 ± 0.41 mg g–1in the thalli ofStereocaulon alpinum, while the average level of usnic acid was lowest inCladonia mitis(12.75 ± 2.86 mg g–1) and highest inFlavocetraria cucullata(34.87 ± 0.47 mg g–1). Atranorin and usnic acid were detected in the faecal samples, averaging 0.41 ± 0.53 and 0.74 ± 1.11 (mean ± SD) mg g–1dry matter, respectively. The presence of lichen secondary compounds in faeces from Svalbard reindeer shows that lichens are indeed included in their diet, although probably in small amounts because of depleted pastures. Contrary to previous findings in reindeer on mainland Norway, atranorin and usnic acid are not completely degraded or absorbed in Svalbard reindeer. To elucidate the mechanisms behind detoxification of lichen secondary compounds in reindeer, more research is needed on their respective rumen microbiomes and digestive enzymes. |
format |
Article in Journal/Newspaper |
author |
Węgrzyn, Michał Hubert Wietrzyk-Pełka, Paulina Galanty, Agnieszka Cykowska-Marzencka, Beata Alterskjær Sundset, Monica |
author_facet |
Węgrzyn, Michał Hubert Wietrzyk-Pełka, Paulina Galanty, Agnieszka Cykowska-Marzencka, Beata Alterskjær Sundset, Monica |
author_sort |
Węgrzyn, Michał Hubert |
title |
Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
title_short |
Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
title_full |
Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
title_fullStr |
Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
title_full_unstemmed |
Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) |
title_sort |
incomplete degradation of lichen usnic acid and atranorin in svalbard reindeer (rangifer tarandus platyrhynchus) |
publisher |
Norwegian Polar Institute |
publishDate |
2019 |
url |
https://polarresearch.net/index.php/polar/article/view/3375 https://doi.org/10.33265/polar.v38.3375 |
long_lat |
ENVELOPE(15.945,15.945,78.146,78.146) |
geographic |
Arctic Svalbard Norway Bolterdalen |
geographic_facet |
Arctic Svalbard Norway Bolterdalen |
genre |
Arctic Polar Research Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer Tundra Spitsbergen |
genre_facet |
Arctic Polar Research Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer Tundra Spitsbergen |
op_source |
Polar Research; Vol 38 (2019) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3375/9087 https://polarresearch.net/index.php/polar/article/view/3375/9088 https://polarresearch.net/index.php/polar/article/view/3375/9089 https://polarresearch.net/index.php/polar/article/view/3375/9090 https://polarresearch.net/index.php/polar/article/view/3375 doi:10.33265/polar.v38.3375 |
op_doi |
https://doi.org/10.33265/polar.v38.3375 |
container_title |
Polar Research |
container_volume |
38 |
container_issue |
0 |
_version_ |
1802641508540612608 |