Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil

Microplastics and plant litter are ubiquitous in the soil environment, and both materials can influence soil properties and biota. Plant litter releases secondary metabolites (e.g., phenolic compounds) during the decomposition process, including chemical compounds active in plant defense. Effects of...

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Autores principales:	Shin Woong Kim, Yun Liang, Yudi M. Lozano, Matthias C. Rillig
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	adsorption Caenorhabditis elegans fiber phenolic compounds solvent Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ed01947e01014b0987f955ec4ae0ee65
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spelling	oai:doaj.org-article:ed01947e01014b0987f955ec4ae0ee652021-11-30T23:41:07ZMicroplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil2296-665X10.3389/fenvs.2021.790560https://doaj.org/article/ed01947e01014b0987f955ec4ae0ee652021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenvs.2021.790560/fullhttps://doaj.org/toc/2296-665XMicroplastics and plant litter are ubiquitous in the soil environment, and both materials can influence soil properties and biota. Plant litter releases secondary metabolites (e.g., phenolic compounds) during the decomposition process, including chemical compounds active in plant defense. Effects of microplastics and plant litter on soil biota have been studied independently but we have limited information about the combined effects of both sources of chemicals. Here, we specifically focused on the interaction between plant litter and microplastics, as well as their potential effects on soil biota (i.e., nematodes). We used soils from a previous experiment that included three different types of microplastic fibers (MFs) and four different types of plant litter, which were incubated in the soil in all combinations of materials. After soil incubation (42 days) in the previous experiment, we here tested for effects on nematodes (Caenorhabditis elegans). Plant litter treatments negatively affected the reproduction of nematodes, but these effects were reduced when the soils were incubated along with MFs. We measured the phenolic concentrations in plant litter extracts in a kinetic experiment and found that phenolic concentrations significantly decreased with some of the MF additions. Our results suggest that microplastics can affect the potential effects of natural chemicals such as plant phenolic compounds. We urge future studies to consider this possibility as a key explanatory process underpinning effects of microplastic in the soil environment.Shin Woong KimShin Woong KimYun LiangYun LiangYudi M. LozanoYudi M. LozanoMatthias C. RilligMatthias C. RilligFrontiers Media S.A.articleadsorptionCaenorhabditis elegansfiberphenolic compoundssolventEnvironmental sciencesGE1-350ENFrontiers in Environmental Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption Caenorhabditis elegans fiber phenolic compounds solvent Environmental sciences GE1-350
spellingShingle	adsorption Caenorhabditis elegans fiber phenolic compounds solvent Environmental sciences GE1-350 Shin Woong Kim Shin Woong Kim Yun Liang Yun Liang Yudi M. Lozano Yudi M. Lozano Matthias C. Rillig Matthias C. Rillig Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
description	Microplastics and plant litter are ubiquitous in the soil environment, and both materials can influence soil properties and biota. Plant litter releases secondary metabolites (e.g., phenolic compounds) during the decomposition process, including chemical compounds active in plant defense. Effects of microplastics and plant litter on soil biota have been studied independently but we have limited information about the combined effects of both sources of chemicals. Here, we specifically focused on the interaction between plant litter and microplastics, as well as their potential effects on soil biota (i.e., nematodes). We used soils from a previous experiment that included three different types of microplastic fibers (MFs) and four different types of plant litter, which were incubated in the soil in all combinations of materials. After soil incubation (42 days) in the previous experiment, we here tested for effects on nematodes (Caenorhabditis elegans). Plant litter treatments negatively affected the reproduction of nematodes, but these effects were reduced when the soils were incubated along with MFs. We measured the phenolic concentrations in plant litter extracts in a kinetic experiment and found that phenolic concentrations significantly decreased with some of the MF additions. Our results suggest that microplastics can affect the potential effects of natural chemicals such as plant phenolic compounds. We urge future studies to consider this possibility as a key explanatory process underpinning effects of microplastic in the soil environment.
format	article
author	Shin Woong Kim Shin Woong Kim Yun Liang Yun Liang Yudi M. Lozano Yudi M. Lozano Matthias C. Rillig Matthias C. Rillig
author_facet	Shin Woong Kim Shin Woong Kim Yun Liang Yun Liang Yudi M. Lozano Yudi M. Lozano Matthias C. Rillig Matthias C. Rillig
author_sort	Shin Woong Kim
title	Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
title_short	Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
title_full	Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
title_fullStr	Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
title_full_unstemmed	Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
title_sort	microplastics reduce the negative effects of litter-derived plant secondary metabolites on nematodes in soil
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ed01947e01014b0987f955ec4ae0ee65
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Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil

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