Effects of Neonicotinoid Insecticides on Physiology and Reproductive Characteristics of Captive Female and Fawn White-tailed Deer

Berheim, Elise Hughes; Jenks, Jonathan A.; Lundgren, Jonathan G.; Michel, Eric; Grove, Daniel M.; Jensen, William F.

doi:10.1038/s41598-019-40994-9

Cited by 76 publications

(49 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They act on receptor proteins of the insect nervous system. Many reports detail their insecticidal properties, but reports on bioaccumulation and its transfer into plant organs are minimal. In this context, the ability of Zea mays plant to accumulate THM in seeds and seedlings (roots, stem, and leaves) was confirmed at MSE using square‐wave voltammetry (Table ).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Physiological effects of thiamethoxam on Zea mays and its electrochemical detection using a silver electrode

et al. 2020

View full text Add to dashboard Cite

BACKGROUND The aim of this work is the detection and quantification of bioaccumulated thiamethoxam (THM) in Zea mays at a silver electrode using square‐wave voltammetry. Thiamethoxam bioaccumulation and plant development were followed for 10 days from germination to seedling growth. Germination rate, accumulation rate, root length, and plant length were used as indicators. All experiments were carried out using several concentrations of THM (5.0 × 10−4, 1.0 × 10−3, 5.0 × 10−3, 3.4 × 10−2 and 5.0 × 10−2 mol L−1). RESULTS The results confirm that Zea mays was sensitive to this insecticide and that germination and growth inhibition were dose dependent. The efficiency and utility of the proposed method were discussed. The current intensity increases linearly with an increase in the THM bioaccumulated in Zea mays. After 10 days,the recovery results of the extraction of THM from zea Mayes samples spiked with different concentrations were encouraging. The detection and quantification limits were found to be 9.58 × 10−6 mol L−1 (3*SD/B) and 3.13 × 10−5 mol L−1 (10*SD/B). The precision was 2.67% for eight repetitions in a solution of 3.5 × 10−4 mol L−1 THM. Histological tests were also performed to confirm the effect of THM on the plant and showed that exposure to THM induced a net histological modification in the primary root tissue of Zea mays. CONCLUSION The use of THM can affect the quality of the plant crop yield, and its accumulation in edible plants could pose a potential risk for human and animal health if the insecticide intake were to exceed the recommended tolerable limits. © 2019 Society of Chemical Industry

show abstract

Section: Resultsmentioning

confidence: 99%

“…They act on receptor proteins of the insect nervous system. Many reports detail their insecticidal properties, [26][27][28][29] but reports on bioaccumulation and its transfer into plant organs are minimal.…”

Section: Thiamethoxam Bioaccumulation In Zea Maysmentioning

confidence: 99%

Physiological effects of thiamethoxam on Zea mays and its electrochemical detection using a silver electrode

et al. 2020

View full text Add to dashboard Cite

show abstract

“…[42] Imidacloprid administration at field-relevant doses in drinking water affects white tail deer and fawns. [43] Such findings in numerouss pecies includingl arger mammals increaset he urgency of developing efficient imidacloprid decontamination processes. Moving forward, we consider that this study adds to the case that TAML/peroxide systems have real potential forr emoving some of the most recalcitrant micropollutants from water and we are focusedo nm aking this happen.…”

Section: Discussionmentioning

confidence: 99%

Zero‐Order Catalysis in TAML‐Catalyzed Oxidation of Imidacloprid, a Neonicotinoid Pesticide

Warner

Somasundar

Weng

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

Bis‐sulfonamide bis‐amide TAML activator [Fe{4‐NO2C6H3‐1,2‐(NCOCMe2NSO2)2CHMe}]− (2) catalyzes oxidative degradation of the oxidation‐resistant neonicotinoid insecticide, imidacloprid (IMI), by H2O2 at pH 7 and 25 °C, whereas the tetrakis‐amide TAML [Fe{4‐NO2C6H3‐1,2‐(NCOCMe2NCO)2CF2}]− (1), previously regarded as the most catalytically active TAML, is inactive under the same conditions. At ultra‐low concentrations of both imidacloprid and 2, 62 % of the insecticide was oxidized in 2 h, at which time the catalyst is inactivated; oxidation resumes on addition of a succeeding aliquot of 2. Acetate and oxamate were detected by ion chromatography, suggesting deep oxidation of imidacloprid. Explored at concentrations [2]≥[IMI], the reaction kinetics revealed unusually low kinetic order in 2 (0.164±0.006), which is observed alongside the first order in imidacloprid and an ascending hyperbolic dependence in [H2O2]. Actual independence of the reaction rate on the catalyst concentration is accounted for in terms of a reversible noncovalent binding between a substrate and a catalyst, which usually results in substrate inhibition when [catalyst]≪[substrate] but explains the zero order in the catalyst when [2]>[IMI]. A plausible mechanism of the TAML‐catalyzed oxidations of imidacloprid is briefly discussed. Similar zero‐order catalysis is presented for the oxidation of 3‐methyl‐4‐nitrophenol by H2O2, catalyzed by the TAML analogue of 1 without a NO2‐group in the aromatic ring.

show abstract

“…Exposure to neonicotinoids can occur via different pathways, including pollen, nectar, guttation fluids, soil, air, and noncrop vegetation (Roubos et al 2014, Mogren and Lundgren 2016, Calvo-Agudo et al 2019, and sublethal and lethal effects have been reported for pollinators (Blacquière et al 2012, Whitehorn et al 2012, Rundlöf et al 2015 and natural enemies, potentially undermining vital pollination and biological control services (Pisa et al 2015, Calvo-Agudo et al 2019. High levels of exposure were reported for different species of farmland birds (Humann-Guilleminot et al 2019), and sublethal impacts have been reported for large vertebrates, such as deer (Gibbons et al 2015, Berheim et al 2019. Residues of neonicotinoids have been found in honey all over the world, at potentially harmful concentrations for nectar-feeding insects in 48% of the samples (Mitchell et al 2017).…”

Section: Crisis and Disastermentioning

confidence: 99%

“…Over the past years, there has been increasing concern over the broad environmental risks of neonicotinoid insecticides (EASAC 2015, Giorio et al 2017, Pisa et al 2017, Goulson 2018. Since their introduction in the 1990s, neonicotinoids have rapidly diffused because of their systemic mode of action (MoA), high efficiency at low doses, and their presumed low toxicity to vertebrates including humans (but see Cimino et al 2017, Berheim et al 2019. Today, neonicotinoids are the most widely used insecticides in the world, being employed in more than 120 countries and on 450 crops Tooker 2015, Simon-Delso et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Neonicotinoids in global agriculture: evidence for a new pesticide treadmill?

Bakker¹,

Werf²,

Tittonell³

et al. 2020

E&S

View full text Add to dashboard Cite

Overreliance on synthetic insecticides in global agriculture is the outcome of a "pesticide treadmill," in which insecticideinduced pest resistance development and the depletion of beneficial insect populations aggravate farmers' pesticide dependencies. Examples of the pesticide treadmill have been witnessed repeatedly over the past seven decades, prompting the question whether the rapid uptake and usage patterns of neonicotinoid insecticides and their associated environmental impact are in accordance with this recurrent phenomenon. We hypothesize a conceptual framework in which treadmills are enforced by enabling or disabling drivers within four domains: pest management decisions at the farm level, characteristics of farming landscapes, science and technology, and societal demands. These drivers then tend to create a self-enforcing pesticide "lock-in." We then analyze several post-1950s historical case studies with reference to this framework, e.g., those involving sprays of the highly hazardous DDT and methyl-parathion, in which the pesticide treadmill was initiated, sustained, and broken, and compare this with current patterns in neonicotinoid use. Historical case studies further illustrate how treadmills occur in three phases in which (i) a limited number of insecticides are routinely used, (ii) resistance development of pests results in the increased crop injury, prompting increased frequency of applications with a wider range of products, (iii) breaking out of the pesticide "lock-in" by policy change and adoption of alternative technologies that lowered chemical inputs and improved agro-ecosystem functioning. The analysis shows similarities as well as differences between neonicotinoid usage patterns and historic pesticide treadmills, and provides guidance on how to effectively avoid or dismantle pesticide treadmills in global agriculture.

show abstract

Effects of Neonicotinoid Insecticides on Physiology and Reproductive Characteristics of Captive Female and Fawn White-tailed Deer

Cited by 76 publications

References 48 publications

Physiological effects of thiamethoxam on Zea mays and its electrochemical detection using a silver electrode

Physiological effects of thiamethoxam on Zea mays and its electrochemical detection using a silver electrode

Zero‐Order Catalysis in TAML‐Catalyzed Oxidation of Imidacloprid, a Neonicotinoid Pesticide

Neonicotinoids in global agriculture: evidence for a new pesticide treadmill?

Contact Info

Product

Resources

About