Comparison of uptake, translocation and accumulation of several neonicotinoids in komatsuna (Brassica rapa var. perviridis) from contaminated soils

Li, Yong; Long, Ling; Yan, Huangqian; Ge, Jing; Cheng, Jinjin; Ren, Liyun; Yu, Xiangyang

doi:10.1016/j.chemosphere.2018.02.104

Cited by 85 publications

(38 citation statements)

References 52 publications

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“…The rest of the strains showed statistically significant differences in the amounts of acetamiprid accumulated in the cells at the three concentrations used. At the This insecticide has proved the ability to accumulate, inter alia, in the tissues of plants where, through translocation, it can even move from the roots to the shoots [17,18]. It was found that due to its good solubility in water, acetamiprid has a strong toxic effect on aquatic organisms where it bioaccumulates by sorption mechanisms characteristic for compounds with high polarity [19,20].…”

Section: Quantitative Analyses Of the Content Of Acetamiprid In Metarmentioning

confidence: 99%

Acetamiprid Affects Destruxins Production but Its Accumulation in Metarhizium sp. Spores Increases Infection Ability of Fungi

Nowak

Bernat

Mrozińska

et al. 2020

Toxins

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Metarhizium sp. are entomopathogenic fungi that inhabit the soil environment. Together, they act as natural pest control factors. In the natural environment, they come into contact with various anthropogenic pollutants, and sometimes, they are used together and interchangeably with chemical insecticides (e.g., neonicotinoids) for pest control. In most cases, the compatibility of entomopathogens with insecticides has been determined; however, the influence of these compounds on the metabolism of entomopathogenic fungi has not yet been studied. Secondary metabolites are very important factors that influence the fitness of the producers, playing important roles in the ability of these pathogens to successfully parasitize insects. In this study, for the first time, we focus on whether the insecticide present in the fungal growth environment affects secondary metabolism in fungi. The research revealed that acetamiprid at concentrations from 5 to 50 mg L−1 did not inhibit the growth of all tested Metarhizium sp.; however, it reduced the level of 19 produced destruxins in direct proportion to the dosage used. Furthermore, it was shown that acetamiprid accumulates not only in plant or animal tissues, but also in fungal cells. Despite the negative impact of acetamiprid on secondary metabolism, it was proofed to accumulate in Metarhizium spores, which appeared to have a stronger infectious potential against mealworm Tenebrio molitor, in comparison to the insecticide or the biological agent alone.

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Section: Quantitative Analyses Of the Content Of Acetamiprid In Metarmentioning

confidence: 99%

Acetamiprid Affects Destruxins Production but Its Accumulation in Metarhizium sp. Spores Increases Infection Ability of Fungi

Nowak

Bernat

Mrozińska

et al. 2020

Toxins

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“…However, Li et al . found the uptake and translocation of neonicotinoid insecticides in komatsuna ( Brassica rapa ) were significantly correlated with the molecular weight of a compound rather than their log K ow 9 . Additional research has shown that uptake of xenobiotics by plant seeds is different from that by their roots in relation to log K ow and electrical charge 1 .…”

Section: Introductionmentioning

confidence: 99%

Uptake and translocation of imidacloprid via seed pathway and root pathway during early seedling growth of corn

Tang

Hao

Yuan

et al. 2020

Pest Management Science

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BACKGROUND: A systemic seed treatment can be taken up into shoot tissues during early corn seedling growth. However, the pathway that a systemic compound is taken up, either from seed or root uptake to shoot tissues is not fully understood. To study the single contributions of seed pathway and root pathway for the uptake and translocation of imidacloprid seed treatment, two methods were developed: A seed treatment method and a growing media/hydroponic solution delivery method. The seed treatment method employed a live and dead seed separated with plastic wrap to provide a barrier. The growing media/ hydroponic solution delivery method quantified the capacity for uptake by seeds and roots. RESULTS: The seed pathway transported 1.9-2.5 times more imidacloprid into shoot tissues when compared to the root pathway at the same dosage rate. The higher amount of imidacloprid taken up and translocated by the seed pathway was attributed to the fact that the corn seeds were in direct contact with high provided concentrations of imidacloprid. However, the root pathway showed 7.9-9.5 times higher capacity for transporting imidacloprid into shoot tissues when compared with the seed pathway. Whenever imidacloprid was taken up by seed or root, amounts of imidacloprid were measured in both tissues of seed and root. CONCLUSION: The seed pathway transported more imidacloprid than the root pathway during early seedling growth since corn seeds were contacted by higher concentrations of imidacloprid. Both seed pathway and root pathway were occurring concurrently during early seedling growth of corn.

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“…An RCF value >1 indicates a strong ability of a compound to enter plant roots from the soil(Y. Li et al, 2018). TF describes the ability of a plant to transfer a compound from the roots to the shoots and is de ned as TF = C shoot /C root (Castle, Byrne, Jian, & Toscano, 2010; Mattina, Iannucci-Berger, & Dykas, 2000).…”

Section: Discussionmentioning

confidence: 99%

Examination of Acephate Absorption, Transport, Metabolism, and Accumulation in Maize After Root Irrigation for Spodoptera Frugiperda Control

Hou

et al. 2021

Preprint

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BACKGROUND: Since the invasion of the fall armyworm moth (Spodoptera frugiperda) in China in January 2019, damage to maize crops has gradually intensified, and chemical control has become the main control measure. This study aimed to examine methods of effective pest control while monitoring the environmental impact of pesticide use. The effectiveness of S. frugiperda pest control by foliar spraying and root irrigation of maize plants with acephate was determined, and the absorption, distribution, and dissipation of acephate and methamidophos by maize were studied.RESULTS: Field trials showed that acephate treatment at 6000 g.a.i ha-1 was the most effective for controlling S. frugiperda. Acephate and methamidophos were absorbed from the roots, transported upward, and concentrated in the leaves, particularly new leaves. The terminal residues of acephate and methamidophos in maize grains were below detectable levels at 60 days after treatment.CONCLUSIONS: The results demonstrate that acephate treatment via root irrigation can more effectively control the infestation of S. frugiperda in maize than acephate treatment via foliar spraying. The translocation and distribution of acephate and methamidophos by root irrigation were more uniform, and the holding efficiency was higher than those in foliar spraying, suggesting an extended period of control efficacy. This pest control method could be utilized to reduce pesticide residues while safely and efficiently controlling S. frugiperda infestation.

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Comparison of uptake, translocation and accumulation of several neonicotinoids in komatsuna (Brassica rapa var. perviridis) from contaminated soils

Cited by 85 publications

References 52 publications

Acetamiprid Affects Destruxins Production but Its Accumulation in Metarhizium sp. Spores Increases Infection Ability of Fungi

Acetamiprid Affects Destruxins Production but Its Accumulation in Metarhizium sp. Spores Increases Infection Ability of Fungi

Uptake and translocation of imidacloprid via seed pathway and root pathway during early seedling growth of corn

Examination of Acephate Absorption, Transport, Metabolism, and Accumulation in Maize After Root Irrigation for Spodoptera Frugiperda Control

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