Cargando…

Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining

The study focused on two grass species Holcus lanatus and Agrostis capillaris abundant in the sites of former As mining and processing in the Sudetes. Arsenic uptake from soils was examined to assess a risk associated with its accumulation in grass shoots and to check its dependence on soil fertiliz...

Descripción completa

Detalles Bibliográficos
Autores principales: Dradrach, Agnieszka, Karczewska, Anna, Szopka, Katarzyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7464124/
https://www.ncbi.nlm.nih.gov/pubmed/32752240
http://dx.doi.org/10.3390/plants9080980
_version_ 1783577291614322688
author Dradrach, Agnieszka
Karczewska, Anna
Szopka, Katarzyna
author_facet Dradrach, Agnieszka
Karczewska, Anna
Szopka, Katarzyna
author_sort Dradrach, Agnieszka
collection PubMed
description The study focused on two grass species Holcus lanatus and Agrostis capillaris abundant in the sites of former As mining and processing in the Sudetes. Arsenic uptake from soils was examined to assess a risk associated with its accumulation in grass shoots and to check its dependence on soil fertilization. The research involved a field study and greenhouse experiment. In the field study, soil and plant samples were collected from 33 sites with 72–98,400 mg/kg total soil As. Arsenic uptake by grasses differed widely. Both species indicated a strategy typical for eliminators, although As concentrations in more than 50% of the shoot samples exceeded 4 mg/kg, a maximum permissible value for fodder. In the greenhouse experiment, commercial cultivars of both species were grown in five soils containing 394–19,600 mg/kg, untreated and fertilized. All seedlings died in the soil with highest total As, and considerable phytotoxicity was observed in other soils, particularly in nonfertilized ones. Fertilization resulted in the improvement of plant growth and reduction of As uptake except for Agrostis capillaris fertilized with manure. Further research should focus on identifying tolerant genotypes growing in extremely enriched sites and analysis of factors that will efficiently reduce As phytoaccumulation.
format Online
Article
Text
id pubmed-7464124
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-74641242020-09-04 Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining Dradrach, Agnieszka Karczewska, Anna Szopka, Katarzyna Plants (Basel) Article The study focused on two grass species Holcus lanatus and Agrostis capillaris abundant in the sites of former As mining and processing in the Sudetes. Arsenic uptake from soils was examined to assess a risk associated with its accumulation in grass shoots and to check its dependence on soil fertilization. The research involved a field study and greenhouse experiment. In the field study, soil and plant samples were collected from 33 sites with 72–98,400 mg/kg total soil As. Arsenic uptake by grasses differed widely. Both species indicated a strategy typical for eliminators, although As concentrations in more than 50% of the shoot samples exceeded 4 mg/kg, a maximum permissible value for fodder. In the greenhouse experiment, commercial cultivars of both species were grown in five soils containing 394–19,600 mg/kg, untreated and fertilized. All seedlings died in the soil with highest total As, and considerable phytotoxicity was observed in other soils, particularly in nonfertilized ones. Fertilization resulted in the improvement of plant growth and reduction of As uptake except for Agrostis capillaris fertilized with manure. Further research should focus on identifying tolerant genotypes growing in extremely enriched sites and analysis of factors that will efficiently reduce As phytoaccumulation. MDPI 2020-08-01 /pmc/articles/PMC7464124/ /pubmed/32752240 http://dx.doi.org/10.3390/plants9080980 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dradrach, Agnieszka
Karczewska, Anna
Szopka, Katarzyna
Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title_full Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title_fullStr Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title_full_unstemmed Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title_short Arsenic Uptake by Two Tolerant Grass Species: Holcus lanatus and Agrostis capillaris Growing in Soils Contaminated by Historical Mining
title_sort arsenic uptake by two tolerant grass species: holcus lanatus and agrostis capillaris growing in soils contaminated by historical mining
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7464124/
https://www.ncbi.nlm.nih.gov/pubmed/32752240
http://dx.doi.org/10.3390/plants9080980
work_keys_str_mv AT dradrachagnieszka arsenicuptakebytwotolerantgrassspeciesholcuslanatusandagrostiscapillarisgrowinginsoilscontaminatedbyhistoricalmining
AT karczewskaanna arsenicuptakebytwotolerantgrassspeciesholcuslanatusandagrostiscapillarisgrowinginsoilscontaminatedbyhistoricalmining
AT szopkakatarzyna arsenicuptakebytwotolerantgrassspeciesholcuslanatusandagrostiscapillarisgrowinginsoilscontaminatedbyhistoricalmining