Effect of aphid biology and morphology on plant virus transmission

Jayasinghe, Wikum Harshana; Akhter, Md. Shamim; Nakahara, Kenji; Maruthi, M. N.

doi:10.1002/ps.6629

Cited by 23 publications

(16 citation statements)

References 125 publications

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“…Mesoniviruses, a group of enveloped, single-stranded positivesense RNA viruses that classified into the family Mesoniviridae, have a genome of ∼20 kb that contains 6-7 ORFs. Two large overlapped ORFs (ORF1a and ORF1b) located on the 5'-proximal of the genome (∼15 kb) encodes the NS proteins, which are arranged in order as the 3C-like protease (3CLpro, encoded by ORF1a), RdRp, zinc-binding module and associated helicase (ZnHel1), exoribonuclease (ExoN), N 7 methyltransferase (NMT), and 2'-O-methytransferase (OMT) (encoded by ORF1b). The other ORFs located at the 3'-terminus of the genome encode the structural proteins, including the spike (S) protein and other membrane proteins (68).…”

Section: Classification and Characters Of The Genome Of Aphid Mesoniv...mentioning

confidence: 99%

Aphid Viruses: A Brief View of a Long History

Guo

Bai

et al. 2022

Front. Insect Sci.

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Aphids are common agricultural pests with a wide range of hosts from agriculture to forestry plants. As known, aphids also serve as the major vectors to transmit plant viruses. Although numerous studies have focused on interactions between aphids and plant viruses, little is known about the aphid viruses, i.e., the insect viruses that are infectious to aphids. In the past four decades, several aphid viruses have been identified in diverse aphid species. In this review, we present a brief view of the aphid pathogenic viruses from several aspects, including classification of aphid viruses and characters of the viral genome, integration of viral sequences in host genomes, infection symptoms and influence on aphids, as well as host range and transmission modes. Taken together, these studies have increased our understanding of the rarely known aphid viruses, and will potentially contribute to the development of new strategies for controlling aphid populations.

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Section: Classification and Characters Of The Genome Of Aphid Mesoniv...mentioning

confidence: 99%

Aphid Viruses: A Brief View of a Long History

Guo

Bai

et al. 2022

Front. Insect Sci.

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“…Herbivorous hemipteran insects are important vectors of plant viruses (Jayasinghe et al, 2022; Rosen et al, 2015; Whitfield et al, 2018). As they feed on plant tissues without killing the cells, they can effectively deliver viruses to living tissue.…”

Section: Introductionmentioning

confidence: 99%

Development of transgenic corn planthopper Peregrinus maidis that express the tetracycline transactivator

Patil

Klobasa

Espinoza-Rivera

et al. 2023

Insect Molecular Biology

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The corn planthopper, Peregrinus maidis, is a vector of several maize viruses and is consequently a significant agricultural pest in many tropical and subtropical regions. As P. maidis has developed resistance to insecticides, the aim of this study was to develop transgenic P. maidis strains that could be used for future genetic biocontrol programs. To facilitate the identification of transgenic P. maidis, we isolated and characterized the promoters for the P. maidis ubiquitin‐like and profilin genes. Transient expression assays with P. maidis embryos showed that both promoters were active. Transgenic lines were established using piggyBac vectors and fluorescent protein marker genes. The lines carried an auto‐regulated tetracycline transactivator (tTA) gene, which has been widely used to establish conditional lethal strains in other insect species. The transgenic lines showed low levels of tTA expression but were viable on diet with or without doxycycline, which inhibits the binding of tTA to DNA. We discuss possible modifications to the tTA overexpression system that could lead to the successful development of conditional lethal strains. To our knowledge, this is the first report of a transgenic Hemiptera. The approach we have taken could potentially be applied to other Hemiptera and, for P. maidis, the technology will facilitate future functional genomics studies.

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“…In addition to their own damage to crops, hemipteran pestssuch as planthoppers and aphids-can transmit viral diseases, causing heavy losses to agricultural production. [1][2][3] Synthetic insecticides mainly are used to control hemipteran pests; however, an increasing number of synthetic insecticides are restricted or banned as a consequence of severe resistance in pest populations, toxicity to bees and other environmental issues. [4][5][6] Accordingly, there is an urgent need to discover and develop alternative controls that are highly efficient, do not cause a high degree of resistance in pest populations, and that are more environmentally safe for nontarget organisms.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to their own damage to crops, hemipteran pests—such as planthoppers and aphids—can transmit viral diseases, causing heavy losses to agricultural production 1–3 . Synthetic insecticides mainly are used to control hemipteran pests; however, an increasing number of synthetic insecticides are restricted or banned as a consequence of severe resistance in pest populations, toxicity to bees and other environmental issues 4–6 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, insecticidal activity, and mode of action of novel imidazopyridine mesoionic derivatives containing an amido group

Liu

Song

Stankovic

et al. 2022

Pest Management Science

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BACKGROUND In our previous work, we applied a new synthetic strategy to design and synthesize a series of imidazopyridine mesoionic derivatives with an ester group. The newly synthesized compounds had excellent insecticidal activity against aphids; however, insecticidal activity against planthoppers was less than satisfactory. In the present study, we designed and synthesized a series of novel imidazopyridine mesoionic compounds, containing an amido group, and these compounds were found to have improved insecticidal activity against planthoppers. RESULTS The bioassay results demonstrated that most of the target compounds had moderate‐to‐good insecticidal activity against Sogatella furcifera, and some exhibited good‐to‐excellent insecticidal activity against Aphis craccivora. Among them, compound C6 had the highest insecticidal activity against S. furcifera and A. craccivora, with LC50 values of 10.5 and 2.09 μg mL−1, respectively. Proteomic results suggested that the differentially expressed proteins mainly were enriched in the nervous system‐related pathways after compound C6 treatment. Enzymatic assay results showed that compound C6 and triflumezopyrim had a certain inhibitory effect on acetylcholinesterase. Molecular docking and real‐time quantitative PCR results indicated that compound C6 not only may act on the nicotinic acetylcholine receptor, but also may interact with the α4 and β1 subunits of this receptor. CONCLUSION The results reported here contribute to the development of new mesoionic insecticides and further our understanding of the mode‐of‐action of imidazopyridine mesoionic derivatives. © 2022 Society of Chemical Industry.

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Effect of aphid biology and morphology on plant virus transmission

Cited by 23 publications

References 125 publications

Aphid Viruses: A Brief View of a Long History

Aphid Viruses: A Brief View of a Long History

Development of transgenic corn planthopper Peregrinus maidis that express the tetracycline transactivator

Synthesis, insecticidal activity, and mode of action of novel imidazopyridine mesoionic derivatives containing an amido group

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