Cargando…
Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study
Microcystin-LR (MC-LR) is prevalent in water and can be translocated into soil-crop ecosystem via irrigation, overflow (pollution accident), and cyanobacterial manure applications, threatening agricultural production and human health. However, the effects of various input pathways on the bioaccumula...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7472386/ https://www.ncbi.nlm.nih.gov/pubmed/32823916 http://dx.doi.org/10.3390/toxins12080523 |
_version_ | 1783578976943341568 |
---|---|
author | Xiang, Lei Li, Yan-Wen Wang, Zhen-Ru Liu, Bai-Lin Zhao, Hai-Ming Li, Hui Cai, Quan-Ying Mo, Ce-Hui Li, Qing X. |
author_facet | Xiang, Lei Li, Yan-Wen Wang, Zhen-Ru Liu, Bai-Lin Zhao, Hai-Ming Li, Hui Cai, Quan-Ying Mo, Ce-Hui Li, Qing X. |
author_sort | Xiang, Lei |
collection | PubMed |
description | Microcystin-LR (MC-LR) is prevalent in water and can be translocated into soil-crop ecosystem via irrigation, overflow (pollution accident), and cyanobacterial manure applications, threatening agricultural production and human health. However, the effects of various input pathways on the bioaccumulation and toxicity of MCs in terrestrial plants have been hardly reported so far. In the present study, pot experiments were performed to compare the bioaccumulation, toxicity, and health risk of MC-LR as well as its degradation in soils among various treatments with the same total amount of added MC-LR (150 μg/kg). The treatments included irrigation with polluted water (IPW), cultivation with polluted soil (CPS), and application of cyanobacterial manure (ACM). Three common leaf-vegetables in southern China were used in the pot experiments, including Ipomoea batatas L., Brassica juncea L., and Brassica alboglabra L. All leaf vegetables could bioaccumulate MC-LR under the three treatments, with much higher MC-LR bioaccumulation, especially root bioconcentration observed in ACM treatment than IPW and CPS treatments. An opposite trend in MC-LR degradation in soils of these treatments indicated that ACM could limit MC-LR degradation in soils and thus promote its bioaccumulation in the vegetables. MC-LR bioaccumulation could cause toxicity to the vegetables, with the highest toxic effects observed in ACM treatment. Similarly, bioaccumulation of MC-LR in the edible parts of the leaf-vegetables posed 1.1~4.8 fold higher human health risks in ACM treatment than in IPW and CPS treatments. The findings of this study highlighted a great concern on applications of cyanobacterial manure. |
format | Online Article Text |
id | pubmed-7472386 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74723862020-09-04 Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study Xiang, Lei Li, Yan-Wen Wang, Zhen-Ru Liu, Bai-Lin Zhao, Hai-Ming Li, Hui Cai, Quan-Ying Mo, Ce-Hui Li, Qing X. Toxins (Basel) Article Microcystin-LR (MC-LR) is prevalent in water and can be translocated into soil-crop ecosystem via irrigation, overflow (pollution accident), and cyanobacterial manure applications, threatening agricultural production and human health. However, the effects of various input pathways on the bioaccumulation and toxicity of MCs in terrestrial plants have been hardly reported so far. In the present study, pot experiments were performed to compare the bioaccumulation, toxicity, and health risk of MC-LR as well as its degradation in soils among various treatments with the same total amount of added MC-LR (150 μg/kg). The treatments included irrigation with polluted water (IPW), cultivation with polluted soil (CPS), and application of cyanobacterial manure (ACM). Three common leaf-vegetables in southern China were used in the pot experiments, including Ipomoea batatas L., Brassica juncea L., and Brassica alboglabra L. All leaf vegetables could bioaccumulate MC-LR under the three treatments, with much higher MC-LR bioaccumulation, especially root bioconcentration observed in ACM treatment than IPW and CPS treatments. An opposite trend in MC-LR degradation in soils of these treatments indicated that ACM could limit MC-LR degradation in soils and thus promote its bioaccumulation in the vegetables. MC-LR bioaccumulation could cause toxicity to the vegetables, with the highest toxic effects observed in ACM treatment. Similarly, bioaccumulation of MC-LR in the edible parts of the leaf-vegetables posed 1.1~4.8 fold higher human health risks in ACM treatment than in IPW and CPS treatments. The findings of this study highlighted a great concern on applications of cyanobacterial manure. MDPI 2020-08-14 /pmc/articles/PMC7472386/ /pubmed/32823916 http://dx.doi.org/10.3390/toxins12080523 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 Xiang, Lei Li, Yan-Wen Wang, Zhen-Ru Liu, Bai-Lin Zhao, Hai-Ming Li, Hui Cai, Quan-Ying Mo, Ce-Hui Li, Qing X. Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title | Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title_full | Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title_fullStr | Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title_full_unstemmed | Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title_short | Bioaccumulation and Phytotoxicity and Human Health Risk from Microcystin-LR under Various Treatments: A Pot Study |
title_sort | bioaccumulation and phytotoxicity and human health risk from microcystin-lr under various treatments: a pot study |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7472386/ https://www.ncbi.nlm.nih.gov/pubmed/32823916 http://dx.doi.org/10.3390/toxins12080523 |
work_keys_str_mv | AT xianglei bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT liyanwen bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT wangzhenru bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT liubailin bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT zhaohaiming bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT lihui bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT caiquanying bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT mocehui bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy AT liqingx bioaccumulationandphytotoxicityandhumanhealthriskfrommicrocystinlrundervarioustreatmentsapotstudy |