Pirimicarb resistance and associated mechanisms in field-collected and selected populations of Neoseiulus californicus

Albayrak, Tuba; Yorulmaz, Sibel; İnak, Emre; Toprak, Umut; Leeuwen, Thomas Van

doi:10.1016/j.pestbp.2021.104984

Cited by 10 publications

(5 citation statements)

References 72 publications

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“…Controlling pest mites with N. californicus is a biological control method with many advantages. First, using N. californicus to control harmful mites does not cause environmental pollution, can effectively control the mites to a certain extent, and has many applications in orchard and vegetable fields 5 , 6 . Vidrih et al 7 reported that satisfactory results could be achieved in suppressing Tetranychus urticae Koch on a hop plantation by repeated use of the predatory mite N. californicus .…”

Section: Introductionmentioning

confidence: 99%

Prediction of the potential distribution of the predatory mite Neoseiulus californicus (McGregor) in China under current and future climate scenarios

Chen

Jiang

Zhang

et al. 2022

Sci Rep

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Neoseiulus californicus is a predatory mite with a wide global distribution that can effectively control a variety of pest mites. In this study, MaxEnt was used to analyse the potential distribution of N. californicus in China and the BCC-CSM2-MR model was used to predict changes in the suitable areas for the mite from 2021 to 2100 under the scenarios of SSP126, SSP245 and SSP585. The results showed that (1) the average of area under curve value of the model was over 0.95, which demonstrated an excellent model accuracy. (2) Annual mean temperature (Bio1), precipitation of coldest quarter (Bio19), and precipitation of driest quarter (Bio17) were the main climatic variables that affected and controlled the potential distribution of N. californicus, with suitable ranges of 6.97–23.27 °C, 71.36–3924.8 mm, and 41.94–585.08 mm, respectively. (3) The suitable areas for N. californicus were mainly distributed in the southern half of China, with a total suitable area of 226.22 × 104 km2 in current. Under the future climate scenario, compared with the current scenario, lowly and moderately suitable areas of N. californicus increased, while highly suitable areas decreased. Therefore, it may be necessary to cultivate high-temperature resistant strains of N. californicus to adapt to future environmental changes.

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Section: Introductionmentioning

confidence: 99%

Prediction of the potential distribution of the predatory mite Neoseiulus californicus (McGregor) in China under current and future climate scenarios

Chen

Jiang

Zhang

et al. 2022

Sci Rep

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“…A recent study showed that field-collected predatory mites Neoseiulus californicus McGregor were 27-fold more resistant to pirimicarb than a susceptible reference population, and this resistance factor reached 69-fold after five generations of laboratory selection. Most interestingly, the authors showed an increased ability of the selected F5 population to consume adults of Tetranychus urticae as compared to the parental population [5]. This could lead to improved integrated mite management programs by using pesticide-resistant N. californicus in apple orchards.…”

Section: Introductionmentioning

confidence: 92%

The Molecular Resistance Mechanisms of European Earwigs from Apple Orchards Subjected to Different Management Strategies

Fricaux,

Le Navenant,

Siegwart

et al. 2023

Insects

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To date, apple orchards are among the most treated crops in Europe with up to 35 chemical treatments per year. Combining control methods that reduce the number of pesticide treatments is essential for agriculture and more respectful of the environment, and the use of predatory insects such as earwigs may be valuable to achieve this goal. European earwigs, Forficula auricularia (Dermaptera: Forficulidae) are considered beneficial insects in apple orchards where they can feed on many pests like aphids. The aim of this study was to investigate the potential impact of orchards’ insecticide treatments on resistance-associated molecular processes in natural populations of earwigs. Because very few molecular data are presently available on earwigs, our first goal was to identify earwig resistance-associated genes and potential mutations. Using earwigs from organic, integrated pest management or conventional orchards, we identified mutations in acetylcholinesterase 2, α1 and β2 nicotinic acetylcholine receptors. In addition, the expression level of these targets and of some essential detoxification genes were monitored using RT-qPCR. Unexpectedly, earwigs collected in organic orchards showed the highest expression for acetylcholinesterase 2. Four cytochromes P450, one esterase and one glutathione S-transferases were over-expressed in earwigs exposed to various management strategies in orchards. This first study on resistance-associated genes in Forficula auricularia paves the way for future experimental studies aimed at better understanding the potential competition between natural enemies in apple orchards in order to optimize the efficiency of biocontrol.

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“…To date, 14 mutations in AChEs have been confirmed to be associated with insecticide resistance in 16 different insect pests, most of which are located within or adjacent to the catalytic site. The most common mutations include G119S, G227A, F290Y/V, and F331Y/W/C [amino acid numbering of Torpedo california ( Tc )AChE], which are found in many insect species, resulting in 100–10 000-fold resistance to OPs and CBs. − Among these mutations, those at Phe331 stand out as particularly intriguing. Notably, three distinct substitutions at this position confer resistance across various species. ,− Of special note is the relatively recent identification of F331Y, which is indicative of an emerging trend in resistance patterns. ,, …”

Section: Introductionmentioning

confidence: 99%

Identification of a Novel Inhibitor ofCimex lectulariusAcetylcholinesterase

Qin,

Yuchi

2024

J. Agric. Food Chem.

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Acetylcholinesterase (AChE) stands as a primary target of commercial insecticides, notably organophosphates and carbamates. Despite their widespread use in agricultural and indoor pest control, concerns over their high toxicity and the emergence of resistance have restricted their efficacy. In this study, we conducted high-throughput virtual screening against both wild-type (WT) and resistant Cimex lectularius AChE utilizing a library encompassing 1 270 000 compounds. From this screening, we identified 100 candidate compounds and subsequently assessed their inhibitory effects on purified AChE enzymes. Among these candidates, AE027 emerged as a potent inhibitor against both WT and resistant AChE, exhibiting IC50 values of 10 and 43 μM, respectively. Moreover, the binding of AE027 significantly stabilized AChE, elevating its melting temperature by approximately 7 °C. Through molecular docking and molecular dynamics simulation, we delineated the binding mode of AE027, revealing its interaction with a site adjacent to the catalytic center, which is distinct from known inhibitors, with differing poses observed between WT and resistant AChE. Notably, the resistance mutation F348Y, positioned at a site directly interfacing with AE027, impedes ligand binding through steric hindrance. Furthermore, we evaluated the toxicity and pharmacokinetic properties of AE027 utilizing bioinformatics tools. These findings lay a crucial foundation for the development of a novel generation of insecticides that can combat both WT and resistant pest populations effectively and safely.

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Pirimicarb resistance and associated mechanisms in field-collected and selected populations of Neoseiulus californicus

Cited by 10 publications

References 72 publications

Prediction of the potential distribution of the predatory mite Neoseiulus californicus (McGregor) in China under current and future climate scenarios

Prediction of the potential distribution of the predatory mite Neoseiulus californicus (McGregor) in China under current and future climate scenarios

The Molecular Resistance Mechanisms of European Earwigs from Apple Orchards Subjected to Different Management Strategies

Identification of a Novel Inhibitor ofCimex lectulariusAcetylcholinesterase

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