Pesticide-induced multigenerational effects on amphibian reproduction and metabolism

Karlsson, Oskar; Svanholm, Sofie; Eriksson, Andréas; Chidiac, Joseph; Eriksson, Johanna; Jernerén, Fredrik; Berg, Cecilia

doi:10.1016/j.scitotenv.2021.145771

Cited by 25 publications

(13 citation statements)

References 43 publications

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“…In the absence of further evidence through experimental studies on caecilians, it remains uncertain if the anomalies observed by us were caused by exposure to agrochemicals, although evidence from a range of other studies and taxa supports this possibility (Henle et al 2017a). The presence of anomalies could also indicate impairments in physiology, behavior and reproduction (Hegde et al 2019;Karlsson et al 2021), or even physical damage during cultivation, any of which might threaten caecilian populations (de Silva 2011;Egea-Serrano et al 2012). To further elucidate the detrimental effects of agrochemicals on caecilians, laboratory-based research under environmentally relevant conditions is urgently needed, along with toxicological assessments of agrochemicals in the tissues of caecilians sampled from the field.…”

Section: Discussionmentioning

confidence: 99%

Chromatic and morphological anomalies in gymnophionans from India

Govindappa¹,

Venkatachalaiah²,

Seetharama³

et al. 2022

Herpetozoa

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Caecilians (Gymnophiona) are commonly known as limbless amphibians and are the least understood vertebrate order. In this paper, we documented skin color, eye, jaw, snout, tentacular aperture and cloacal anomalies in 12 individuals of four species belonging to the three caecilian genera Ichthyophis, Uraeotyphlus and Gegeneophis collected from hotspots of caecilian diversity in India, the Western Ghats and Northeast India. As we found the majority of these individuals in coffee and tea plantations, we discuss the possibility that anomalies are the result of exposure to agrochemicals that are frequently used in plantations.

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Section: Discussionmentioning

confidence: 99%

Chromatic and morphological anomalies in gymnophionans from India

Govindappa¹,

Venkatachalaiah²,

Seetharama³

et al. 2022

Herpetozoa

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“…As an important agricultural production material, pesticides play an irreplaceable role in food production. However, many problems have arisen due to excessive and unscientific use of pesticides, such as excessive pesticide residues, toxicity to nontarget organisms, and pollution of groundwater, soil, and atmosphere 1–3 . With the increasing awareness of ecological and environmental protection, research has been focused on developing safe, efficient, and environmentally friendly pesticide formulations worldwide.…”

Section: Introductionmentioning

confidence: 99%

Facile pathway to construct mesoporous silica nanoparticles loaded with pyraclostrobin: Physicochemical properties, antifungal activity, and biosafety

Feng

Chen

et al. 2022

Pest Management Science

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BACKGROUND A controlled‐release formulation based on mesoporous silica nanoparticles (MSNs) provides an effective way for reducing pesticide use and protecting the ecological environment. In this study, MSNs loaded with pyraclostrobin (PYR@MSNs) were prepared using a one‐pot method. RESULTS The characteristics of PYR@MSNs were systematically investigated, including morphology, loading content, ultraviolet (UV) resistance, release behavior, control effects against pathogens, and safety to nontarget organisms. The results show that the prepared PYR@MSNs presented characteristics of regular spherical shapes, uniform particle size (200 nm), high drug loading (38.9%), and enhanced UV resistance. Compared with traditional formulation, PYR@MSNs exhibited improved control effects against Fusarium graminearum, an extended control period, and lower toxicity to zebrafish, earthworms and BEAS‐2B cells. CONCLUSIONS This research will facilitate the development of efficient and safe pesticide delivery systems. The PYR@MSNs has showed its potential as a new controlled‐release formulation with increased efficacy and is expected to benefit the sustainable development of agriculture. © 2022 Society of Chemical Industry.

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“…Given their permeable skin and sensitivity to changes in environmental conditions, amphibians are considered to be excellent bioindicators of environmental quality 1 . As a consequence of this sensitivity, amphibian populations are declining worldwide, and the number of endangered species has grown considerably in recent years 2 .…”

Section: Introductionmentioning

confidence: 99%

Toxicity and genotoxicity of imidacloprid in the tadpoles of Leptodactylus luctator and Physalaemus cuvieri (Anura: Leptodactylidae)

Samojeden

Pavan

Rutkoski

et al. 2022

Sci Rep

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Imidacloprid is a neonicotinoid insecticide used to control agricultural pests around the world. This pesticide can have adverse effects on non-target organisms, especially in aquatic environments. The present study evaluated the toxicity of an imidacloprid-based insecticide in amphibians, using Leptodactylus luctator and Physalaemus cuvieri tadpoles as study models. Spawning of both species were collected within less than 24 h of oviposition from a non-agricultural land at Erechim, Rio Grande do Sul state, Brazil. Survival, swimming activity, body size, morphological malformations, and genotoxic parameters were analyzed at laboratory conditions. A short-term assay was conducted over 168 h (7 days) with five different concentrations of imidacloprid (3–300 µg L−1) being tested. The insecticide did not affect survival, although the tadpoles of both species presented reduced body size, malformed oral and intestine structures, and micronuclei and other erythrocyte nuclear abnormalities following exposure to this imidacloprid-based compound. Exposure also affected swimming activity in L. luctator, which reflected the greater sensitivity of L. luctator to imidacloprid in comparison with P. cuvieri. The swimming activity, body size, and malformations observed in L. luctator and the morphological malformations found in P. cuvieri indicated that even the lowest tested concentration of the insecticide were harmful to amphibians. At concentrations of over 3 μg L−1, P. cuvieri presents a smaller body size, and both species are affected by genotoxic cell damage. This demonstrates that imidacloprid is potentially toxic for the two study species at environmentally relevant concentrations.

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Pesticide-induced multigenerational effects on amphibian reproduction and metabolism

Cited by 25 publications

References 43 publications

Chromatic and morphological anomalies in gymnophionans from India

Chromatic and morphological anomalies in gymnophionans from India

Facile pathway to construct mesoporous silica nanoparticles loaded with pyraclostrobin: Physicochemical properties, antifungal activity, and biosafety

Toxicity and genotoxicity of imidacloprid in the tadpoles of Leptodactylus luctator and Physalaemus cuvieri (Anura: Leptodactylidae)

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Pesticide-induced multigenerational effects on amphibian reproduction and metabolism

Cited by 25 publications

References 43 publications

﻿Chromatic and morphological anomalies in gymnophionans from India

﻿Chromatic and morphological anomalies in gymnophionans from India

Facile pathway to construct mesoporous silica nanoparticles loaded with pyraclostrobin: Physicochemical properties, antifungal activity, and biosafety

Toxicity and genotoxicity of imidacloprid in the tadpoles of Leptodactylus luctator and Physalaemus cuvieri (Anura: Leptodactylidae)

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Chromatic and morphological anomalies in gymnophionans from India

Chromatic and morphological anomalies in gymnophionans from India