Soil Nematodes as Indicators of Heavy Metal Pollution: A Meta-Analysis

Chauvin, Camille; Trambolho, Manon; Hedde, Mickaël; Makowski, David; Cérémonie, Hélène; Jimenez, Anne; Villenave, Cécile

doi:10.4236/ojss.2020.1012028

Cited by 17 publications

(7 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decreasing of the total abundance and biomass of the nematode community under soil contamination with toxicants is known [48]. Our results suggest that total nematodes community biomass is a more sensitive indicator than the total abundance.…”

Section: Discussionmentioning

confidence: 61%

Can Nematode Communities Work as an Indicator of Soil Health in a Multiyear Miscanthus × Giganteus Plantation Growing in Lead-Contaminated Soil?

et al. 2023

View full text Add to dashboard Cite

Analysis of the nematode community has been considered a key indicator of soil health. In this study, the assessment of nematodes was performed two times during the third growing season in soil contaminated by chemical elements where Miscanthus × giganteus was cultivated in the years 2019–2022. A morphological approach was used to identify the nematode communities that showed sensitivity to the level of soil contamination. In contrast, the value of M × g dry biomass was a more conservative indicator and displayed only a small yield, which decreased (3.6%) at the highest level of soil contamination by lead to 290.5 ± 75.4 µg/g. Principal component analysis revealed four trends associated with the coherent variability of contamination in soil and various organs of M × g. The variability of elements was reflected by the first three principal components and did not affect the nematode community. The variability of lead concentration was associated with principal component 4, which was the largest driver of changes in the nematode community. The trophic structure of the nematode communities was the most sensitive to soil contamination by lead. A decrease in the Structural Index was the general indicator in the transformation of the nematode community structure due to increasing levels of soil contamination.

show abstract

Section: Discussionmentioning

confidence: 61%

Can Nematode Communities Work as an Indicator of Soil Health in a Multiyear Miscanthus × Giganteus Plantation Growing in Lead-Contaminated Soil?

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The soil pollution [79] and agricultural practices such as tillage and fertilisation [4] disrupt the soil ecosystem and stimulate bacterial and fungal activities to which the nematode community responds by reducing MI [80]. Secondary succession leads to a reduction in trophic conditions and an increase in MI [66].…”

Section: Discussionmentioning

confidence: 99%

The Short-Term Effects of Amendments on Nematode Communities and Diversity Patterns under the Cultivation of Miscanthus × giganteus on Marginal Land

et al. 2022

View full text Add to dashboard Cite

The short-term effects of soil amendments on the structure, diversity and function of a nematode community of Miscanthus × giganteus was investigated. Crop was cultivated on marginal, nutrient-poor land amended with biochar in single and double doses (BD1 and BD2), biogas digestate (D), sewage sludge (SS), and hemicellulose waste (HW). Sampling was done after planting, in the middle and end of vegetation; morphology-based approach was used. 28 nematode taxa were identified, including 5 bacterivores genera, 4 fungivores genera, 5 herbivores genera (11 species), 2 omnivores genera, 5 predators genera. The general linear models, correspondence analysis and clustering were applied for evaluation. The total abundance of nematode taxa Filenchus, Dorylaimus, Cephalobus, Panagrolaimus, Aphelenchus, and Ditylenchus was depended on the sampling time and amendments. The incorporation of amendments affected nematode food web and resulted in suppression of plant-parasitic nematodes (PPNs). It was revealed that community structure was more mature for SS, less stable for D and had inconclusive effects for BD1, BD2, and HW. Using amendments ensured pest control benefits which is important given concern that PPNs can inflict crop damage during increased cultivation of M × g. Further research is needed to examine amendments which can minimise PPNs without reducing populations of nitrogen-fixing bacterivores and fungivores.

show abstract

“…Generally, an increase in PTE concentration in soil negatively affects soil microbial estates and causes an overall decrease in the growth of microbes by affecting their growth, morphology and metabolism [ 51 , 52 ]. PTEs are also toxic for nematodes and the most toxic PTE for nematodes is selenium (Se) [ 53 ].…”

Section: Major Impacts Of Ptesmentioning

confidence: 99%

Phytoremediation of Potentially Toxic Elements: Role, Status and Concerns

Wani

Ahmad

Asgher

et al. 2023

Plants

View full text Add to dashboard Cite

Environmental contamination with a myriad of potentially toxic elements (PTEs) is triggered by various natural and anthropogenic activities. However, the industrial revolution has increased the intensity of these hazardous elements and their concentration in the environment, which, in turn, could provoke potential ecological risks. Additionally, most PTEs pose a considerable nuisance to human beings and affect soil, aquatic organisms, and even nematodes and microbes. This comprehensive review aims to: (i) introduce potentially toxic elements; (ii) overview the major sources of PTEs in the major environmental compartments; (iii) briefly highlight the major impacts of PTEs on humans, plants, aquatic life, and the health of soil; (iv) appraise the major methods for tackling PTE-caused pollution; (v) discuss the concept and applications of the major eco-technological/green approaches (comprising phytoextraction, rhizofiltration, phytostabilization, phytovolatilization, and phytorestoration); (vi) highlight the role of microbes in phytoremediation under PTE stress; and (vii) enlighten the major role of genetic engineering in advancing the phytoremediation of varied PTEs. Overall, appropriate strategies must be developed in order to stop gene flow into wild species, and biosafety issues must be properly addressed. Additionally, consistent efforts should be undertaken to tackle the major issues (e.g., risk estimation, understanding, acceptance and feasibility) in order to guarantee the successful implementation of phytoremediation programs, raise awareness of this green technology among laymen, and to strengthen networking among scientists, stakeholders, industrialists, governments and non-government organizations.

show abstract

Soil Nematodes as Indicators of Heavy Metal Pollution: A Meta-Analysis

Cited by 17 publications

References 65 publications

Can Nematode Communities Work as an Indicator of Soil Health in a Multiyear Miscanthus × Giganteus Plantation Growing in Lead-Contaminated Soil?

Can Nematode Communities Work as an Indicator of Soil Health in a Multiyear Miscanthus × Giganteus Plantation Growing in Lead-Contaminated Soil?

The Short-Term Effects of Amendments on Nematode Communities and Diversity Patterns under the Cultivation of Miscanthus × giganteus on Marginal Land

Phytoremediation of Potentially Toxic Elements: Role, Status and Concerns

Contact Info

Product

Resources

About