Is selenium beneficial or detrimental to earthworm? Growth and metabolism responses of Eisenia Fetida to Na2SeO3 exposure

Xu, Qiufang; Shao, Xiuqing; Shi, Yifeng; Li, Qian; Zhou, Xuan; Qin, Wenyou; Zhang, Meng

doi:10.1016/j.scitotenv.2021.150770

Cited by 11 publications

(6 citation statements)

References 42 publications

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“…However, Se overfertilization is occurring in Se-deficient soils (Winkel et al, 2015 ; Ros et al, 2016 ). Excessive Se flux into the soil as a consequence of Se biofortification may exert negative influences on the soil fauna since they remain in the soil for their entire life cycle and are directly affected by the chemicals in the soil (Xu et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

et al. 2022

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Crop biofortification with inorganic selenium (Se) fertilizer is a feasible strategy to improve the health of residents in Se-deficient areas. For eco-friendly crop Se biofortification, a comprehensive understanding of the effects of Se on crop and soil nematodes is vital. In this study, a rice pot experiment was carried out to test how selenite supply (untreated control (0), 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 100, or 200 mg Se kg−1) in soil affected rice growth, rice Se accumulation, and soil nematode abundance and composition. The results showed that selenite supply (5–200 mg kg−1) generally increased the number of rice tillers, rice yield, and Se concentrations in rice grains. In soil under 10 mg kg−1 Se treatment, the genus composition of nematodes changed significantly compared with that in the control soil. With increased Se level (> 10 mg kg−1), soil nematode abundance decreased significantly. Correlation analysis also demonstrated the positive relationships between soil Se concentrations (total Se and bioavailable Se) with rice plant parameters (number of rice tillers, rice yield, and grain Se concentration) and negative relationships between soil Se concentrations (total Se and bioavailable Se) with soil nematode indexes (nematode abundance and relative abundance of Tobrilus). This study provides insight into balancing Se biofortification of rice and soil nematode community protection and suggests the effective concentrations for total Se (1.45 mg kg−1) and bioavailable Se (0.21 mg kg−1) to soil nematode abundances at 20% level (EC20) as soil Se thresholds. At Se concentrations below these thresholds, rice plant growth and Se accumulation in the grain will still be promoted, but the disturbance of the soil nematodes would be negligible.

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Section: Introductionmentioning

confidence: 99%

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

et al. 2022

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“…These amino acids are involved in a wide range of essential physiological activities, and their disruption could indicate dysregulation of proteins and enzymes, DNA damage, and oxidative stress. 39,40 As shown in Figure S11, the specific amino acid-related pathways that were affected include phenylalanine, tyrosine and tryptophan biosynthesis (by exposure to PFOA, PFOS+PFOA, and less likely, PFOS); D-glutamine and D-glutamate metabolism (by exposure to PFOA, PFOS+PFOA, and less likely, PFOS); tyrosine metabolism (by exposure to PFOA and PFOS+PFOA); and alanine, aspartate and glutamate metabolism (by exposure to PFOA and PFOS+PFOA).…”

Section: Effect Of Pfas On Biological Pathways Of E Fetidamentioning

confidence: 99%

“…Upregulation of the tyrosine metabolism pathway may also be related to need for energy metabolism upregulation due to PFAS exposure. 25,40 Conversely, the alanine, aspartate and glutamate metabolism pathway, which also produces intermediate metabolites in the TCA cycle (fumaric acid, pyruvic acid, and succinic acid) was downregulated by PFOA and PFOS+PFOA exposure. (possibly) PFOS individually and in the mixture (Figure S11).…”

Section: Effect Of Pfas On Biological Pathways Of E Fetidamentioning

confidence: 99%

“…35 Upregulation of amino acids, such as tyrosine, phenylalanine, leucine, and valine, was likely to offset the need for energy metabolism as earthworms experiencing oxidative stress may not obtain sufficient energy from carbohydrates and fats. 40 Glyoxylate and dicarboxylate metabolism has similar intermediates as the TCA cycle so it is unsurprising that it was dysregulated by the exposure of E. fetida to PFOA and PFOS+PFOA. All the quantified metabolites that are associated with this pathway (aconitic acid, glutamate, citric acid, isocitric acid, and succinic acid) were downregulated upon exposure of E. fetida to PFOA and PFOS+PFOA, except glycine, which was upregulated.…”

Section: Effect Of Pfas On Biological Pathways Of E Fetidamentioning

confidence: 99%

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Perfluorooctanoic acid dominates the molecular-level effects of a trace mixture of perfluorooctanoic acid and perfluorooctane sulfonic acid in earthworm

Han

Oyeyemi

Zenobio

et al. 2023

Preprint

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Per- and polyfluoroalkyl substances (PFAS) are an important class of emerging contaminants in the environment. Most studies on the impact of PFAS considered individual compounds; meanwhile PFAS mainly exist in soil as mixtures. To fill this knowledge gap, we investigated the impact of 200 ng/g of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS)as individual compounds and a binary mixture (PFOS+PFOA)on the survival, biomass, reproduction, and metabolites of earthworm (Eisenia fetida). PFAS significantly (p < 0.05) decreased the survival, biomass, and reproduction of E. fetida after 28 d of exposure, but the impact of the mixture was not additive. The bioaccumulation of PFOS after 28 d increased, while that of PFOA decreased when E. fetida was exposed to the mixture compared to the individual compounds. These bioaccumulation trends were partly attributed to changes in the soil distribution coefficient (Kd) of PFOS and PFOA when present in the mixture. Eighty percent of the statistically (p and FDR < 0.05) altered metabolites after 28 d were similarly perturbed by both PFOA and PFOS+PFOA. The pathways dysregulated are related to the metabolism of amino acids, energy, and sulfur. We showed that PFOA dominates the molecular-level impact of the binary PFAS mixture.

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“…There is evidence that selenium (Se) functions in anti-oxidative mechanisms and is a component of glutathione peroxidase in plants (Lin et al, 2005, Cabral Gouveia et al, 2020. Since the soil fauna spends its whole life cycle in the soil and is directly impacted by the chemicals in the soil, excessive Se flux into the soil as a result of Se biofortification may have detrimental effects on fauna survival (Xu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Inducing Systemic Resistance against Root-knot Nematodes in Eggplant by Chemical and Organic Fertilizers and Antioxidant Substances

El-Deriny

Wahdan²,

Ibrahim³

2022

Egyptian Journal of Agronematology

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One of the most significant pests of vegetable crops is known as root-knot nematode (Meloidogyne spp.). Although, using synthetic nematicides to manage nematodes are a triedand-true successful method, this tactic raises concerns due to its high costs and negative environmental impacts. In order to control root-knot nematode infection and infestation on eggplant cv. Black Beauty seedlings in an environmentally friendly manner, experiments were carried out using a chemical fertilizer (NPK), an organic fertilizer (humic acid), and some antioxidant substances (selenium, vitamin C, and E) individually and in combination under greenhouse and field conditions. The obtained results of these investigations, revealed that all tested treatments have the ability to reduce nematode populations, which would raise yield. Vitamins C and E combined with NPK fertilizer significantly increased shoot and root fresh and shoot dry weight over control in greenhouse conditions. They also significantly decreased total final nematode population with reproduction factor (Rf =0.44) less than control. Additionally, simultaneous application of humic acid, selenium, and NPK boosting plant conditions and greatly reduced J2s, gall formation, and number of egg masses. Plant height, fresh and dry weight, yield per plant, N, P, and K contents, as well as fruit quality (total carbohydrates, vitamin A, and C) were all estimated during field trials. As for, parameters of eggplant as affected by application of humic acid and/or antioxidants concomitantly with NPK fertilization were significantly increased. Furthermore, reducing activity in total nematode population in soil and root was achieved by all tested treatments. It could be observed that humic acid and different antioxidant when combined with NPK induced systemic which consequently caused suppression in eggplant against root knot nematode.

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Is selenium beneficial or detrimental to earthworm? Growth and metabolism responses of Eisenia Fetida to Na2SeO3 exposure

Cited by 11 publications

References 42 publications

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

Perfluorooctanoic acid dominates the molecular-level effects of a trace mixture of perfluorooctanoic acid and perfluorooctane sulfonic acid in earthworm

Inducing Systemic Resistance against Root-knot Nematodes in Eggplant by Chemical and Organic Fertilizers and Antioxidant Substances

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