Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid
Abstract Industrial and human activities in the Arctic regions may pose a risk to terrestrial Arctic ecosystem functions. One of the most common terrestrial toxicological end points, primary productivity, typically is assessed using a plant phytotoxicity test. Because of cryoturbation, a soil mixing...
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crwiley:10.1897/07-405.1 2023-12-03T10:15:48+01:00 Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid Anaka, Alison Wickstrom, Mark Siciliano, Steven Douglas 2008 http://dx.doi.org/10.1897/07-405.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1897%2F07-405.1 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1897/07-405.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 27, issue 3, page 720-726 ISSN 0730-7268 1552-8618 Health, Toxicology and Mutagenesis Environmental Chemistry journal-article 2008 crwiley https://doi.org/10.1897/07-405.1 2023-11-09T14:04:46Z Abstract Industrial and human activities in the Arctic regions may pose a risk to terrestrial Arctic ecosystem functions. One of the most common terrestrial toxicological end points, primary productivity, typically is assessed using a plant phytotoxicity test. Because of cryoturbation, a soil mixing process common in polar regions, we hypothesized that phytotoxicity test results in Arctic soils would be highly variable compared to other terrestrial ecosystems. The variability associated with phytotoxicity tests was evaluated using Environment Canada's standardized plant toxicity test in three cryoturbated soils from Canada's Arctic exposed to a reference toxicant, boric acid. Northern wheatgrass ( Elymus lanceolatus ) not only was more sensitive to toxicants in Arctic soils, its response to toxicants was more variable compared to that in temperate soils. The phytotoxicity of boric acid in cryosols was much greater than commonly reported in other soils, with a boric acid concentration of less than 150 μg/g soil needed to inhibit root and shoot growth by 20%. Large variability also was found in the phytotoxicity test results, with coefficients of variation for 10 samples ranging from 160 to 79%. The increased toxicity of boric acid in cryosols and variability in test response was not explained by soil properties. Based on our admittedly limited data set of three different Arctic soils, we recommend that more than 30 samples be taken from each control and potentially impacted area to accurately assess contaminant effects at sites in northern Canada. Such intensive sampling will insure that false‐negative results for toxicant impacts in Arctic soils are minimized. Article in Journal/Newspaper Arctic Wiley Online Library (via Crossref) Arctic Canada Environmental Toxicology and Chemistry 27 3 720 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Health, Toxicology and Mutagenesis Environmental Chemistry |
spellingShingle |
Health, Toxicology and Mutagenesis Environmental Chemistry Anaka, Alison Wickstrom, Mark Siciliano, Steven Douglas Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
topic_facet |
Health, Toxicology and Mutagenesis Environmental Chemistry |
description |
Abstract Industrial and human activities in the Arctic regions may pose a risk to terrestrial Arctic ecosystem functions. One of the most common terrestrial toxicological end points, primary productivity, typically is assessed using a plant phytotoxicity test. Because of cryoturbation, a soil mixing process common in polar regions, we hypothesized that phytotoxicity test results in Arctic soils would be highly variable compared to other terrestrial ecosystems. The variability associated with phytotoxicity tests was evaluated using Environment Canada's standardized plant toxicity test in three cryoturbated soils from Canada's Arctic exposed to a reference toxicant, boric acid. Northern wheatgrass ( Elymus lanceolatus ) not only was more sensitive to toxicants in Arctic soils, its response to toxicants was more variable compared to that in temperate soils. The phytotoxicity of boric acid in cryosols was much greater than commonly reported in other soils, with a boric acid concentration of less than 150 μg/g soil needed to inhibit root and shoot growth by 20%. Large variability also was found in the phytotoxicity test results, with coefficients of variation for 10 samples ranging from 160 to 79%. The increased toxicity of boric acid in cryosols and variability in test response was not explained by soil properties. Based on our admittedly limited data set of three different Arctic soils, we recommend that more than 30 samples be taken from each control and potentially impacted area to accurately assess contaminant effects at sites in northern Canada. Such intensive sampling will insure that false‐negative results for toxicant impacts in Arctic soils are minimized. |
format |
Article in Journal/Newspaper |
author |
Anaka, Alison Wickstrom, Mark Siciliano, Steven Douglas |
author_facet |
Anaka, Alison Wickstrom, Mark Siciliano, Steven Douglas |
author_sort |
Anaka, Alison |
title |
Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
title_short |
Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
title_full |
Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
title_fullStr |
Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
title_full_unstemmed |
Increased sensitivity and variability of phytotoxicity responses in Arctic soils to a reference toxicant, boric acid |
title_sort |
increased sensitivity and variability of phytotoxicity responses in arctic soils to a reference toxicant, boric acid |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1897/07-405.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1897%2F07-405.1 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1897/07-405.1 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Environmental Toxicology and Chemistry volume 27, issue 3, page 720-726 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1897/07-405.1 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
27 |
container_issue |
3 |
container_start_page |
720 |
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1784262690112274432 |