Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi

Li, Wenqiang; Lu, Zengbin; Li, Lili; Yu, Yong; Dong, Shuanglin; Men, Xingyuan; Ye, Baohua

doi:10.1371/journal.pone.0204097

Cited by 18 publications

(14 citation statements)

References 44 publications

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“…This suggests the gene plays an essential role in stress defense. A similar increase in Cat expression in response to under these environmental stresses was also observed in other insect species, including Rhopalosiphum padi, Frankliniella occidentalis, Xylotrechus rusticus, C. suppressalis , and Heortia vitessoides (Cheng et al, 2018; Ding et al, 2015; W. Li et al, 2018; Lu et al, 2017; Qin et al, 2017; Xu et al, 2017).…”

Section: Discussionsupporting

confidence: 61%

Molecular characterization of a catalase gene from the green peach aphid (Myzus persicae)

Wang

Xiao

et al. 2021

Arch Insect Biochem Physiol

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The green peach aphid, Myzus persicae (Sulzer), is a serious agricultural pest with a worldwide distribution. Catalase (CAT), which is encoded by the catalase (Cat) gene, is an extremely important antioxidant enzyme that plays a pivotal role in protecting cells against the toxic effects of hydrogen peroxide. The Cat gene has not been characterized in M. persicae; therefore, this study describes the identification of the Cat (MpCat) gene from M. persicae. MpCat contains an open reading frame of 1515 bp and encodes a MpCAT protein consisting of 504 amino‐acid residues. MpCAT possesses features typical of other insect catalases, including 7 conserved amino acids involved in binding heme and 15 involved in binding nicotinamide adenine dinucleotide phosphate. Phylogenetic analysis showed that MpCAT was closely related to orthologs from other aphid species. MpCat consisted of nine exons and eight introns, and the number and insertion sites of introns are consistent with those of Cat genes from Acyrthosiphon pisum (Harris) and Aphis gossypii Glover. The mRNA transcripts of MpCat were detected at all tested developmental stages, with the highest mRNA level in alate adults. The expression of MpCat was significantly upregulated when M. persicae was exposed to low and high temperatures, ultraviolet radiation, Beauveria bassiana, and permethrin. The transcription of MpCat and the activity of catalase were suppressed by RNA interference, and knockdown of MpCat significantly reduced the survival rate in M. persicae under heat stress. The results provide valuable information for further study on the physiological functions of MpCat.

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Section: Discussionsupporting

confidence: 61%

Molecular characterization of a catalase gene from the green peach aphid (Myzus persicae)

Wang

Xiao

et al. 2021

Arch Insect Biochem Physiol

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“…Compensatory effects might exist in A. lucorum to synchronize the developmental rate of various populations. Similarly, Li et al 43 observed a longer oviposition period in R. padi treated by imidacloprid, while a shorter oviposition period was documented in A. lucorum 18,41 and A. glycines 42 . Additionally, imidacloprid significantly extended the nymphal development duration of M. persicae 17,23 and R. padi 43 .…”

Section: Discussionmentioning

confidence: 72%

“…Similarly, Li et al 43 observed a longer oviposition period in R. padi treated by imidacloprid, while a shorter oviposition period was documented in A. lucorum 18,41 and A. glycines 42 . Additionally, imidacloprid significantly extended the nymphal development duration of M. persicae 17,23 and R. padi 43 . In contrast, a reduction in nymphal development duration was reported in A. lucorum 41 , B. tabaci 15 , A. gossypii 24,34 , and A. glycines 42 .…”

Section: Discussionmentioning

confidence: 72%

“…We also showed that the nymphal survival rate in F0 generation and fecundity in F1 generation of A. lucorum were decreased at LC 30 . Many insect species also have lower survival rates in their immature stages, including A. lucorum 41 , R. padi 43 , B. tabaci 15,44 , Euschistus heros 16 , and A. gossypii 45 . Additionally, the reduction in fecundity were also observed in A. lucorum with LD 40 of cycloxaprid 18 , A. gossypii exposed to LC 10 and LC 40 of cycloxaprid 34 , A. glycine with 0.20 mg L −1 of imidacloprid 42 , and N. lugens treated with imidacloprid and dinotefuran 46 .…”

Section: Discussionmentioning

confidence: 99%

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Sublethal and transgenerational effects of dinotefuran on biological parameters and behavioural traits of the mirid bug Apolygus lucorum

Dong

et al. 2020

Sci Rep

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The mirid bug, Apolygus lucorum, has become a major pest of many crops and fruit trees since the widespread adoption of Bt cotton in northern China. Neonicotinoid insecticides, such as dinotefuran, applied to control this pest may show sublethal effects, but evidence for such effects is lacking. Here, we investigated the sublethal and transgenerational effects of dinotefuran on biological parameters and feeding behavioural traits of A. lucorum using the age-stage, two-sex life table and electrical penetration graphs (EPGs), respectively. The LC 10 and Lc 30 of dinotefuran against 3 rd -instar nymphs of A. lucorum were 14.72 and 62.95 mg L −1 , respectively. These two concentrations significantly extended the development duration from 3 rd -instar nymph to adult in parent generation (F0). LC 30 also increased the oviposition period and male adult longevity and reduced nymphal survival rate in the F0. For offspring generation (F1), the egg duration, preadult duration, and total preoviposition period were significantly lower at LC 10 than in the control, and the egg duration, duration of 4 th -instar nymphs, preadult duration, oviposition period, and fecundity were also decreased at LC 30 . However, the four demographic parameters of F1 generation, namely, net reproductive rate (R 0 ), intrinsic rate of increase (r), finite rate of increase (λ), and mean generation time (T), were not affected by dinotefuran. The significant differences in the number of probes and duration of each of four feeding waveforms failed to be detected when A. lucorum nymphs treated by dinotefuran feed on Bt cotton plants without insecticide exposure. Overall, the dinotefuran concentrations tested here have sublethal, but no transgenerational impacts on A. lucorum.Mirid bugs, including Apolygus lucorum, have become the key pests of cotton and fruit trees owing to the major reduction in broad-spectrum insecticide use associated with the wide-scale adoption of Bt cotton in China since 1997 1,2 . The nymphs and adults of these bugs mainly feed on the young tissues of crops, including the leaves, bolls, fruits, terminal meristems, and other tissues, resulting in the stunting of plants and dropping of bolls and fruits, and in turn causing serious yield loss 3 . Broad-spectrum insecticides, such as organophosphates and pyrethroids, have been extensively applied to reduce the infestation by these insects 4-6 . However, many environmental risks are related to the use of these conventional insecticides, e.g., insect resistance 7,8 , with negative effects to natural enemies 9,10 and on human health. Thus, it is crucial that insecticides with highly effective to pests and low-toxicity to mammals should be adopted to manage mirid bugs to reduce the environmental risks.Neonicotinoid insecticides are among the most widely used pesticides globally, with the advantages of favourable toxicological properties, flexible use, and systemic activity 11,12 . They selectively act as agonists of insect nicotinic acetylcholine receptors (nAChRs), preventing signal tr...

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“…The age-stage, two-sex life table and EPGs are two useful tools to assess the population-level performance and feeding behaviour of insects [26][27][28][29]. This kind of life table approach considers both sexes and stage differentiation and can estimate population parameters more accurately than the traditional female age-specific life tables [29,30].…”

Section: Introductionmentioning

confidence: 99%

Sublethal and transgenerational effects of sulfoxaflor on the demography and feeding behaviour of the mirid bug Apolygus lucorum

Lu¹,

Dong

et al. 2020

PLoS ONE

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Sulfoxaflor, the first commercially available sulfoximine insecticide, has been used for the control of sap-feeding insect pests such as plant bugs and aphids on a variety of crops. However, its sublethal effects on the mirid bug Apolygus lucorum, one of the key insect pests of Bt cotton and fruit trees in China, have not been fully examined. Here, we evaluated the demography and feeding behaviour of A. lucorum exposed to sulfoxaflor. The leaf-dipping bioassay showed that the LC 10 and LC 30 of sulfoxaflor against 3 rd-instar nymphs of this insect were 1.23 and 8.37 mg L-1 , respectively. The LC 10 significantly extended the nymphal duration and decreased the oviposition period by 5.29 days and female fecundity by 56.99% in the parent generation (F0). The longer duration of egg, 5 th-instar nymphs, preadult, and male adult longevity were observed in the F1 generation (F1) at LC 10. At the LC 30 , the duration of egg and 1 st-instar nymph, female adult longevity, and oviposition period of the F1 were significantly shorter, while the nymphal duration in the F0 and duration of 5 th-instar nymphs, preadult survival rate, and male adult longevity in the F1 significantly increased. The net reproductive rate (R 0), intrinsic rate of increase (r), and finite rate of increase (λ) in the F1 were not significantly affected by these two concentrations, whereas the mean generation time (T) was lower at the LC 30. Additionally, the probe counts and cells mixture feeding time were markedly lengthened by the LC 10 and LC 30 , respectively, when A. lucorum nymphs exposed to sulfoxaflor fed on Bt cotton plants without insecticides. These results clearly indicate that sulfoxaflor causes sublethal effects on A. lucorum and the transgenerational effects depend on the tested concentrations.

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Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi

Cited by 18 publications

References 44 publications

Molecular characterization of a catalase gene from the green peach aphid (Myzus persicae)

Molecular characterization of a catalase gene from the green peach aphid (Myzus persicae)

Sublethal and transgenerational effects of dinotefuran on biological parameters and behavioural traits of the mirid bug Apolygus lucorum

Sublethal and transgenerational effects of sulfoxaflor on the demography and feeding behaviour of the mirid bug Apolygus lucorum

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