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Journal articles on the topic 'Insect Suppressing Effect'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Benko, Zsigmond, Dong Liang, Emmanuel Agbottah, et al. "Anti-Vpr Activity of a Yeast Chaperone Protein." Journal of Virology 78, no. 20 (2004): 11016–29. http://dx.doi.org/10.1128/jvi.78.20.11016-11029.2004.

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ABSTRACT Human immunodeficiency virus type 1 (HIV-1) viral protein R (Vpr) exerts multiple effects on viral and host cellular activities during viral infection, including nuclear transport of the proviral integration complex, induction of cell cycle G2 arrest, and cell death. In this report, we show that a fission yeast chaperone protein Hsp16 inhibits HIV-1 by suppressing these Vpr activities. This protein was identified through three independent genome-wide screens for multicopy suppressors of each of the three Vpr activities. Consistent with the properties of a heat shock protein, heat shoc

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N.D, Zatale, Chandurkar R.S, Shinde M.P, et al. "RNAi in Plant Protection: A Targeted Approach for Insect Pest Suppression." Agriculture Association of Textile Chemical and Critical Reviews 13, no. 2 (2025): 187–91. https://doi.org/10.21276/aatccreview.2025.13.02.186.

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The biggest challenge faced by humanity in the 21 st is how to increase crop yields in a profitable, efficient, and sustainable way. There are several issues constraining agricultural productivity, such as damage by insect pests, diseases, and weeds. Currently, chemical pesticides remain the major approach used for suppressing insect pests owing to their well-controlled effect. Unfortunately, the excessive application of chemical pesticides has caused some serious problems threatening the environment and human health. RNAi is a post-transcriptional gene silencing mechanism initiated by the int

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3

Overney, Serge, Dominique Michaud, Binh Nguyen-Quoc, and Serge Yelle. "POTENTIAL OF PROTEINASE INHIBITORS FOR THE PRODUCTION OF TRANSGENIC PLANTS TOLERANT TO INSECT PESTS. II. POTENTIAL LIMITATIONS." HortScience 29, no. 4 (1994): 249f—250. http://dx.doi.org/10.21273/hortsci.29.4.249f.

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In recent years, several studies have demonstrated the potential of proteinase inhibitors (PIs) for controlling insect pests. Used as a component of an integrated pest management program, such an approach must, however, be considered with care, given the potential risks of interference on other control approaches. In particular, the effect of PIs on digestive proteinases of beneficial insects must be determined. As an example, this study analyzed the effect of oryzacystatins (OCs), two cysteine PIs isolated from rice, on digestive proteinases of Perillus bioculatus, a predator of the Colorado

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Gealy, Claire, Marian Denson, Christine Humphreys, Brian McSharry, Gavin Wilkinson, and Richard Caswell. "Posttranscriptional Suppression of Interleukin-6 Production by Human Cytomegalovirus." Journal of Virology 79, no. 1 (2005): 472–85. http://dx.doi.org/10.1128/jvi.79.1.472-485.2005.

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ABSTRACT Human cytomegalovirus (HCMV) has evolved multiple strategies for suppression of the antiviral response of the infected cell. DNA array technology has revealed that HCMV clearly regulates host gene expression during the course of a productive infection by enhancing, sustaining, or suppressing steady-state levels of cellular transcripts. Interleukin-6 (IL-6) is a pleiotropic cytokine that plays a central role in the immune response to infection. Here we report a detailed study of the effects of HCMV infection on IL-6 expression by human fibroblasts. UV-inactivated virus was found to ind

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Lu, Hong, Junjie Zhu, Jinting Yu, Xiaofang Chen, Le Kang, and Feng Cui. "A Symbiotic Virus Facilitates Aphid Adaptation to Host Plants by Suppressing Jasmonic Acid Responses." Molecular Plant-Microbe Interactions® 33, no. 1 (2020): 55–65. http://dx.doi.org/10.1094/mpmi-01-19-0016-r.

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Symbiotic viruses exist in many insects; however, their functions in host insects are not well understood. In this study, we explored the role of acyrthosiphon pisum virus (APV) in the interaction of its host aphid Acyrthosiphon pisum with plants. APV is primarily located in aphid salivary glands and gut and propagated in the insect. APV is horizontally transmitted to host plants during aphid feeding, but the virus does not replicate in the host plant. When the pea host race of aphids colonized two low-fitness plants, Medicago truncatula and Vicia villosa, the virus titers in both the aphids a

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S, RAGURAMAN, and RAJASEKARAN B. "EFFECT OF NEEM PRODUCTS ON INSECT PESTS OF RICE AND THE PREDATORY SPIDER." Madras Agricultural Journal 83, Augest (1996): 510–15. http://dx.doi.org/10.29321/maj.10.a01046.

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Neem oil (NO) 3% and neem seed kernel extract (NSKE) 5% high volume applications were superior to monocrotophos, neem cake extract (NCE) 10% and neem coated urea (NCU) treatments in suppressing brown planthopper (BPH) Nilaparvata lugens (Stal) population 3 days after spraying (DAS) in Kharif season. NO 3% and NSKE 5% also effectively checked leaf folder, Cnaphalocrocis medinalis (Gunee), upto 14 DAS and were on par with monocrotophos 0.04%. Ear head bug Leptocorisa spp population remained very low in all the plots treated with neem products. There was a better recolonisation of the predatory w

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Pyszko, Petr, Denisa Višňovská, Michaela Drgová, Martin Šigut, and Pavel Drozd. "Effect of Bacterial and Fungal Microbiota Removal on the Survival and Development of Bryophagous Beetles." Environmental Entomology 49, no. 4 (2020): 902–11. http://dx.doi.org/10.1093/ee/nvaa060.

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Abstract Insect microbiota may play a wide range of roles in host physiology. Among others, microbiota can be involved in diet processing or protection against pathogens, both of which are potentially important in bryophagous (moss-feeding) insects, which survive on extreme diets and live in the stable environment of moss clumps suitable for the growth of fungi and bacteria. We treated Cytilus sericeus (Forster, 1771) (Coleoptera: Byrrhidae) as a model organism with bactericides and fungicides to test the effect of bacterial and fungal removal on egg hatching and larval development. Furthermor

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Allman, Megan J., Johanna E. Fraser, Scott A. Ritchie, D. Albert Joubert, Cameron P. Simmons, and Heather A. Flores. "Wolbachia’s Deleterious Impact on Aedes aegypti Egg Development: The Potential Role of Nutritional Parasitism." Insects 11, no. 11 (2020): 735. http://dx.doi.org/10.3390/insects11110735.

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The artificial introduction of the endosymbiotic bacterium, Wolbachia pipientis, into Aedes (Ae.) aegypti mosquitoes reduces the ability of mosquitoes to transmit human pathogenic viruses and is now being developed as a biocontrol tool. Successful introgression of Wolbachia-carrying Ae. aegypti into native mosquito populations at field sites in Australia, Indonesia and Malaysia has been associated with reduced disease prevalence in the treated community. In separate field programs, Wolbachia is also being used as a mosquito population suppression tool, where the release of male only Wolbachia-

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Hristozova, Mariya, Pavlin Vasilev, Angelova Angelova, and Marieta Nesheva. "Influence of botanical insecticides on predatory insects under laboratory conditions." Agricultural Sciences 17, no. 45 (2025): 50–55. https://doi.org/10.22620/agrisci.2025.45.006.

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Botanical insecticides play a crutial role in organic agriculture by suppressing pest populations and reducing crop damage. However, their impact on beneficial insects remains insufficiently studied. This study aims to assess the toxicity of three botanical insecticides on the most common predatory insect species in plum orchards. The experiment was conducted in 2024 at the Entomology laboratory of the Fruit Growing Institute - Plovdiv. The active ingredients – orange oil, pyrethrum and Urtica spp. – were tested against Adalia bipunctata (Coccinellidae), Macrolophus pygmaeus (Miridae), Orius m

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Muliadi, S. Sjam, and S. Thamrin. "The role of combination insectary plants and botanical pesticides in increasing arthropod populations of natural enemies and suppressing populations of s. frugiperda in corn." IOP Conference Series: Earth and Environmental Science 1255, no. 1 (2023): 012009. http://dx.doi.org/10.1088/1755-1315/1255/1/012009.

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Abstract Spodoptera frugiperda is the main pest of corn with a high level of attack intensity. Utilization of natural enemies both predators and parasitoids can be lured using zinnia flowers could be an effective control technique in suppressing armyworm pest populations. Pests hate the smells and taste of botanical insecticides a mixed of maja fruit and giant milkweed leaves which contain secondary metabolites such as volatile, pectin, saponins and tannins. This study aims to determine the effect of zinnia flowers and the application of botanical insecticides in suppressing armyworm populatio

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Adesina, Jacobs M., Ruth O. Onasanya, Titilayo E. Mobolade-Adesina, et al. "UTILIZATION OF TWO LOCALLY SOURCED PLANT POWDERS AS PRESERVATIVES AGAINST SITOPHILUS ZEAMAIS MOTSCHULSKY (COLEOPTERA: CURCULIONIDAE) SUSCEPTIBILITY." Science Heritage Journal 8, no. 1 (2023): 48–52. https://doi.org/10.26480/gws.01.2024.48.52.

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Due to the unfavourable and dangerous effects of conventional insecticides, protecting stored food grains against insect pest infestation has become a significant issue. Against this back drop, a laboratory experiment arranged in Complete Randomised Design was conducted to evaluate the insecticidal activity of Bridellia micrantha and Chasmanthra dependens against S. zeamais infestation on stored maize. Twenty grams (20g) maize seeds were admixed with 0.5, 1.0, 1.5 and 2.0g of each of the treatments in triplicates. Results showed that both plant materials caused significant adult mortality, sup

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Neznanov, Nickolay, Anna Kondratova, Konstantin M. Chumakov, et al. "Poliovirus Protein 3A Inhibits Tumor Necrosis Factor (TNF)-Induced Apoptosis by Eliminating the TNF Receptor from the Cell Surface." Journal of Virology 75, no. 21 (2001): 10409–20. http://dx.doi.org/10.1128/jvi.75.21.10409-10420.2001.

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ABSTRACT Viral infections often trigger host defensive reactions by activating intrinsic (intracellular) and extrinsic (receptor-mediated) apoptotic pathways. Poliovirus is known to encode an antiapoptotic function(s) suppressing the intrinsic pathway. Here, the effect of poliovirus nonstructural proteins on cell sensitivity to tumor necrosis factor (TNF)-induced (i.e., receptor-mediated) apoptosis was studied. This sensitivity is dramatically enhanced by the viral proteinase 2A, due, most likely, to inhibition of cellular translation. On the other hand, cells expressing poliovirus noncapsid p

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A., Azawei, Okorodo P.C., and Blessing E. "Evaluation on the Effect of Sustainable Environmental Friendly Bio-pesticide on the Growth of seed Borne Fungi (Aspergillus niger) on Cowpea (Vigna unguiculata L. Walp.)." African Journal of Agriculture and Food Science 4, no. 2 (2021): 55–79. http://dx.doi.org/10.52589/ajafs-bux3tpie.

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Evaluation on the Effect of Sustainable Environmental Friendly Bio Pesticides Application on the Growth of Seed borne Fungi on Cowpea (Vigna unguiculata L. Walp.) was conducted at the Department of Crop and Soil Science Laboratory, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria. To determine the percentage (%) efficacy of plant essential oils and to evaluate the best plant essential oil on the suppression of the pathogen cultured and treated Potatoes Dextrose Agar (PDA) plates with the different plant essential oils concentration levels (0.1, 0.01, and 0.001%). This experim

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Yun, Hyun Seok, Jisun Oh, Ji Sun Lim, Hyo Jung Kim, and Jong-Sang Kim. "Anti-Inflammatory Effect of Wasp Venom in BV-2 Microglial Cells in Comparison with Bee Venom." Insects 12, no. 4 (2021): 297. http://dx.doi.org/10.3390/insects12040297.

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The aim of this study was to compare the anti-inflammatory effect of wasp venom (WV) from the yellow-legged hornet (Vespa velutina) with that of bee venom (BV) on BV-2 murine microglial cells. WV was collected from the venom sac, freeze-dried, and used for in vitro examinations. WV and BV were non-toxic to BV-2 cells at concentrations of 160 and 12 µg/mL or lower, respectively. Treatment with WV reduced the secretion of nitric oxide and proinflammatory cytokines, including interleukin-6 and tumor necrosis factor alpha, from BV-2 cells activated by lipopolysaccharide (LPS). Western blot analysi

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Ratti, Vardayani, and Dorothy I. Wallace. "A Malaria Transmission Model Predicts Holoendemic, Hyperendemic, and Hypoendemic Transmission Patterns Under Varied Seasonal Vector Dynamics." Journal of Medical Entomology 57, no. 2 (2019): 568–84. http://dx.doi.org/10.1093/jme/tjz186.

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Abstract A model is developed of malaria (Plasmodium falciparum) transmission in vector (Anopheles gambiae) and human populations that include the capacity for both clinical and parasite suppressing immunity. This model is coupled with a population model for Anopheles gambiae that varies seasonal with temperature and larval habitat availability. At steady state, the model clearly distinguishes uns hypoendemic transmission patterns from stable hyperendemic and holoendemic patterns of transmission. The model further distinguishes hyperendemic from holoendemic disease based on seasonality of infe

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Wang, Kang-Kang, Ya-Jun Wang, Hui Ye, and Sheng-Hong Li. "Time delay and cross-correlated Gaussian noises-induced stochastic stability and regime shift between steady states for an insect outbreak system." International Journal of Biomathematics 12, no. 04 (2019): 1950048. http://dx.doi.org/10.1142/s1793524519500487.

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In this paper, we focus on investigating the stochastic stability and the regime transition between the endangered state and the boom state for a time-delayed insect growth system driven by correlated external and internal noises. By use of the Fokker–Planck equation, the method of small time delay approximation and the fast descent method, we explore in detail the joint action of noise terms and time delay on the mean reproduction and depression time for the insect population. Our investigations indicate that the pseudo-resonance phenomenon of the mean first-passage time (MFPT) occurs because

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Chen, Yun-Chi, Sheng-Yuan Wang, and Chwan-Chuen King. "Bacterial Lipopolysaccharide Inhibits Dengue Virus Infection of Primary Human Monocytes/Macrophages by Blockade of Virus Entry via a CD14-Dependent Mechanism." Journal of Virology 73, no. 4 (1999): 2650–57. http://dx.doi.org/10.1128/jvi.73.4.2650-2657.1999.

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ABSTRACT Monocytes/macrophages (MO/Mφ) are the major target cells for both dengue virus (DV) and bacterial lipopolysaccharide (LPS), and the aim of this study was to define their interactions. We had found that LPS markedly suppressed DV infection of primary human MO/Mφ when it was added to cultures prior to or together with, but not after, viral adsorption. The inhibitory effect of LPS was direct and specific and was not mediated by LPS-induced secretion of cytokines and chemokines such as tumor necrosis factor alpha, interleukin-1β (IL-1β), IL-6, IL-8, IL-12, alpha interferon, MIP-1α, and RA

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Sepe, M., Salamiah, Y. Marsuni, et al. "Effect of drying and storage of corn seeds (Zea mays L.) on postharvest insect pest control in laboratory scales." IOP Conference Series: Earth and Environmental Science 1230, no. 1 (2023): 012086. http://dx.doi.org/10.1088/1755-1315/1230/1/012086.

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Abstract Corn is one of the word’s most essential carbohydrate-producing food crops. In addition to being used as a staple food for most of the world’s population, corn seeds are also an essential component of animal feed. The purpose of this study was to determine the effect of drying and storage time on the presence of warehouse pest populations. The research method was carried out by drying corn seeds under sun exposure for 6 hours/day. The experiment consisted of four treatments, namely drying time repeated three times. Observations consisted of weight loss of corn seeds, the population of

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Brooks, David G., and Jerome A. Zack. "Effect of Latent Human Immunodeficiency Virus Infection on Cell Surface Phenotype." Journal of Virology 76, no. 4 (2002): 1673–81. http://dx.doi.org/10.1128/jvi.76.4.1673-1681.2002.

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ABSTRACT Highly active antiretroviral therapy has succeeded in many cases in suppressing virus production in patients infected with human immunodeficiency virus (HIV); however, once treatment is discontinued, virus replication is rekindled. One reservoir capable of harboring HIV in a latent state and igniting renewed infection once therapy is terminated is a resting T cell. Due to the sparsity of T cells latently infected with HIV in vivo, it has been difficult to study viral and cellular interactions during latency. The SCID-hu (Thy/Liv) mouse model of HIV latency, however, provides high perc

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Batish, D. R., H. P. Singh, D. B. Saxena, and R. K. Kohli. "Weed suppressing ability of parthenin a sesquiterpene lactone from Parthenium hysterophorus." New Zealand Plant Protection 55 (August 1, 2002): 218–21. http://dx.doi.org/10.30843/nzpp.2002.55.3893.

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To find alternate chemicals with novel mode of action allelochemicals which are natural plant products are being investigated This study was undertaken to explore the effect of parthenin (chemically a sesquiterpene lactone from Parthenium hysterophorus L) on two weed species viz Amaranthus viridis and Chenopodium murale In a laboratory bioassay germination seedling growth and dry weight accumulation of the weeds were significantly reduced by treating with parthenin The chlorophyll content and the respiratory activity were also significantly affected in the treated plants The study concluded th

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Imamichi, Tomozumi, Michael A. Murphy, Joseph W. Adelsberger, et al. "Actinomycin D Induces High-Level Resistance to Thymidine Analogs in Replication of Human Immunodeficiency Virus Type 1 by Interfering with Host Cell Thymidine Kinase Expression." Journal of Virology 77, no. 2 (2003): 1011–20. http://dx.doi.org/10.1128/jvi.77.2.1011-1020.2003.

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ABSTRACT Actinomycin D (ActD) is a transcription inhibitor and has been used in the treatment of certain forms of cancer. ActD has been reported to be a potential inhibitor of human immunodeficiency virus type 1 (HIV-1) replication due to its ability to inhibit reverse transcription. In contrast to what was expected, low concentrations of ActD (1 to 10 nM) upregulated HIV-1 replication 8- to 10-fold in MT-2 cells and had no effect on HIV-2 replication or on HIV-1 replication in MT-4, Jurkat, or peripheral blood mononuclear cells. The upregulation of HIV-1 replication was associated with an inc

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Sule, H. "Biocidal Activities of Seed Oils of Jatropha curcas and Moringa oleifera on Development of African Maize Stalk borer, Busseola fusca Fuller (Lepdoptera: Pyralidae)." Nigerian Journal of Entomology 36, no. 1 (2020): 46–53. http://dx.doi.org/10.36108/nje/0202/63.01.50.

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Laboratory experiment was conducted at the Department of Crop Protection Laboratory, Faculty of Agriculture, Bayero University, Kano, in order to assess the effect of oils obtained from the seeds of Jatropha curcas and Moringa oleifera on African Maize Stalk Borer (Busseola fusca Fuller). The effects of the plant seed oils on larvae mortality, pupae and adult emergence were tested on freshly cut leaves/stem of maize 3-4 cm long) and treated with the prepared plant oils at various concentrations (10, 20, and 30%) and control (0%). The experiment was laid out in a completely randomized design an

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Mattapallil, Joseph J., Zeljka Smit-McBride, Peter Dailey, and Satya Dandekar. "Activated Memory CD4+ T Helper Cells Repopulate the Intestine Early following Antiretroviral Therapy of Simian Immunodeficiency Virus-Infected Rhesus Macaques but Exhibit a Decreased Potential To Produce Interleukin-2." Journal of Virology 73, no. 8 (1999): 6661–69. http://dx.doi.org/10.1128/jvi.73.8.6661-6669.1999.

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ABSTRACT Using the simian immunodeficiency virus (SIV)-infected rhesus macaque model, we performed a longitudinal study to determine the effect of antiretroviral therapy on the phenotype and functional potential of CD4+ T cells repopulating intestinal mucosa in human immunodeficiency virus infection. Severe depletion of CD4+ and CD4+ CD8+ T cells occurred in the intestinal mucosa during primary SIV infection. The majority of these cells were of activated memory phenotype. Phosphonate 9-[2-(phosphomethoxypropyl]adenine (PMPA) treatment led to a moderate suppression of intestinal viral loads and

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Misbah-ul-Haq, Muhammad, Antonios A. Augustinos, Danilo O. Carvalho, Lucia Duran de la Fuente, and Kostas Bourtzis. "The Effect of an Irradiation-Induced Recombination Suppressing Inversion on the Genetic Stability and Biological Quality of a White Eye-Based Aedes aegypti Genetic Sexing Strain." Insects 13, no. 10 (2022): 946. http://dx.doi.org/10.3390/insects13100946.

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Aedes aegypti is the primary vector of diseases such as dengue, chikungunya, Zika fever, and yellow fever. The sterile insect technique (SIT) has been proposed as a species-specific and environment-friendly tool for the suppression of mosquito vector populations as a major component of integrated vector management strategies. As female mosquitoes are blood-feeders and may transmit pathogenic microorganisms, mosquito SIT depends on the release of sterile males. Genetic sexing strains (GSS) can be used for the efficient and robust separation of males from females. Two Ae. aegypti GSS were recent

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Mantzoukas, Spiridon, and Ioannis Lagogiannis. "Endophytic Colonization of Pepper (Capsicum annum) Controls Aphids (Myzus persicae Sulzer)." Applied Sciences 9, no. 11 (2019): 2239. http://dx.doi.org/10.3390/app9112239.

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Aphids are among the most harmful crop pests, damaging plants by sucking sap or by transmitting pathogenic viruses. Plant infestation by aphids depends on their population growth. Entomopathogenic fungi are essential participants of terrestrial and aquatic ecosystems, regulating arthropod communities. Many fungal species with a symbiotic–endophytic relation with plants are pathogenic, producing insecticides or insect repellents. The present study investigated the effects of the fungal entomopathogens Beauveria bassiana, Metarhizium anisopliae and Isaria fumosorosea, following their endophytic

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Ogunleye, R.F. "EFFECTIVENESS OF THE LEAF POWDER OF Ficus exasperata Vahl. (Moraceae) IN SUPPRESSING THE POPULATION OF TWO MAJOR STORAGE INSECT PESTS." Continental J. Biological Sciences 4, no. 1 (2011): 6–11. https://doi.org/10.5281/zenodo.1310733.

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Laboratory evaluation of the effectiveness of old and young sandpaper leaf, Ficus exasperata on Callosobruchus maculatus and Sitophilus zeamais was carried out for a period of 72 hours. The effect of the leaf powder were observed at different dosage rates; 50g, 40g, 30g, 20g and 10g per 50g seeds of cowpea and maize .The treated and untreated grains were sampled and assessed every 24 hours for mortality rates of the insects. Results obtained showed that the young sandpaper leaf powder had the highest mortality rate of insects for the five different rates, both on C. maculatus and S. zeamais. T

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McPherson, Robert M., David C. Jones, Paul F. Bertrand, and Alex S. Csinos. "Impact of Thrips (Thysanoptera: Thripidae) Management Practices on Suppression of Tomato Spotted Wilt Virus and Aphid (Homoptera: Aphididae) Control in Flue-Cured Tobacco." Journal of Entomological Science 37, no. 2 (2002): 143–53. http://dx.doi.org/10.18474/0749-8004-37.2.143.

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Tomato spotted wilt tospovirus (TSWV) has become a major economic problem for tobacco growers in Georgia. Several species of thrips have been reported as vectors of TSWV. Three of these species, commonly observed on tobacco in Georgia, include Frankliniella fusca (Hinds), F. occidentalis (Pergande), and F. bispinosa (Morgan). This study examined the effectiveness of several thrips management practices on controlling thrips populations and suppressing the incidence of TSWV. Replicated field plots were used to evaluate aldicarb, acephate, imidacloprid, acibenzolar-S-methyl, spinosad, thiamethoxa

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SOUTHON, Adam, Richard BURKE, Melanie NORGATE, Philip BATTERHAM, and James CAMAKARIS. "Copper homoeostasis in Drosophila melanogaster S2 cells." Biochemical Journal 383, no. 2 (2004): 303–9. http://dx.doi.org/10.1042/bj20040745.

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Copper homoeostasis was investigated in the Drosophila melanogaster S2 cell line to develop an insect model for the study of copper regulation. Real-time PCR studies have demonstrated expression in S2 cells of putative orthologues of human Cu regulatory genes involved in the uptake, transport, sequestration and efflux of Cu. Drosophila orthologues of the mammalian Cu chaperones, ATOX1 (a human orthologue of yeast ATX1), CCS (copper chaperone for superoxide dismutase), COX17 (a human orthologue of yeast COX17), and SCO1 and SCO2, did not significantly respond transcriptionally to increased Cu l

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Wang, Lei, Fei Zhao, Qiuhong Tao, et al. "Toxicity and Sublethal Effect of Triflumezopyrim Against Red Imported Fire Ant (Hymenoptera: Formicidae)." Journal of Economic Entomology 113, no. 4 (2020): 1753–60. http://dx.doi.org/10.1093/jee/toaa083.

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Abstract The use of insecticide remains the frontline method in controlling red imported fire ant (Solenopsis invicta Buren) (Hymenoptera: Formicidae), one of the worst invasive ants in the world. Neonicotinoids are effective ingredients in toxic baits for suppressing S. invicta population. To search for new and effective insecticides, the toxicity and sublethal effects of triflumezopyrim, a novel neonicotinoid analog, were evaluated against S. invicta. No high mortality of ants was observed after they fed on sugar water containing 120 μg/ml triflumezopyrim for 72 h; however, 100% mortality wa

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Ahad, MA, MK Nahar, MR Amin, SJ Suh, and YJ Kwon. "Effect of weed extracts against pulse beetle, Callosobruchus chinensis L. (Coleoptera: Bruchidae) of mung bean." Bangladesh Journal of Agricultural Research 41, no. 1 (2016): 75–84. http://dx.doi.org/10.3329/bjar.v41i1.27671.

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The n-hexane extracts of the weeds bhatpata Clerodendrum viscosum, kashiature Cassia tora, dhakishak Dryoptris filix-max, bonmorich Croton bonpalandianum and ghagra Xanthium strumarium were used to evaluate their effectiveness for suppressing pulse beetle, Callosobruchus chinensis reared on mung bean Vigna radiata grains. The investigations were done with 1, 2 and 4% n-hexane extracts of the weeds and an untreated control. The weed extracts exhibited considerable effectiveness which varied with weed species, concentrations and exposure durations. The higher concentrations showed the

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Kuo, Rei-Lin, Li-Hsin Li, Sue-Jane Lin, et al. "Role of N Terminus-Truncated NS1 Proteins of Influenza A Virus in Inhibiting IRF3 Activation." Journal of Virology 90, no. 9 (2016): 4696–705. http://dx.doi.org/10.1128/jvi.02843-15.

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ABSTRACTThe NS1 protein encoded by influenza A virus antagonizes the interferon response through various mechanisms, including blocking cellular mRNA maturation by binding the cellular CPSF30 3′ end processing factor and/or suppressing the activation of interferon regulatory factor 3 (IRF3). In the present study, we identified two truncated NS1 proteins that are translated from internal AUGs at positions 235 and 241 of the NS1 open reading frame. We analyzed the cellular localization and function of the N-truncated NS1 proteins encoded by two influenza A virus strains, Udorn/72/H3N2 (Ud) and P

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Ishida, Hisashi, Keiji Ueda, Kazuyoshi Ohkawa, et al. "Identification of Multiple Transcription Factors, HLF, FTF, and E4BP4, Controlling Hepatitis B Virus Enhancer II." Journal of Virology 74, no. 3 (2000): 1241–51. http://dx.doi.org/10.1128/jvi.74.3.1241-1251.2000.

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ABSTRACT Hepatitis B virus (HBV) enhancer II (EnII) is a hepatotropiccis element which is responsible for the hepatocyte-specific gene expression of HBV. Multiple transcription factors have been demonstrated to interact with this region. In this study, the region from HBV nucleotides (nt) 1640 to 1663 in EnII was demonstrated to be essential for enhancer activity and to be another target sequence of putative transcription factors. To elucidate the factors which bind to this region, we used a yeast one-hybrid screening system and cloned three transcription factors, HLF, FTF, and E4BP4, from a h

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Tang, Tao, Mingping Zhao, Pei Wang, Yi Xiao, Shengkong Huang, and Wei Fu. "Field Efficacies and Joint Actions of Beta-cyfluthrin Mixed With Thiamethoxam or Tolfenpyrad Against Diaphorina citri (Hemiptera: Liviidae)." Journal of Economic Entomology 113, no. 6 (2020): 2793–99. http://dx.doi.org/10.1093/jee/toaa196.

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Abstract The Asian citrus psyllid, Diaphorina citri Kuwayama, is the most serious pest of citrus because it is a vector for the highly destructive citrus greening disease (huanglongbing, HLB). Currently, insecticide applications are being used widely to control psyllid populations, thereby suppressing the spread of HLB. In the present study, topical application bioassays were performed to detect the joint actions of beta-cyfluthrin and thiamethoxam or tolfenpyrad against D. citri adults in the laboratory. In 2019, a field plot experiment was conducted to evaluate the control efficacies of beta

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Suh, Hyeon-Sook, Meng-Liang Zhao, Mark Rivieccio, et al. "Astrocyte Indoleamine 2,3-Dioxygenase Is Induced by the TLR3 Ligand Poly(I:C): Mechanism of Induction and Role in Antiviral Response." Journal of Virology 81, no. 18 (2007): 9838–50. http://dx.doi.org/10.1128/jvi.00792-07.

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ABSTRACT Indoleamine 2,3-dioxygenase (IDO) is the first and rate-limiting enzyme in the kynurenine pathway of tryptophan catabolism and has been implicated in neurotoxicity and suppression of the antiviral T-cell response in HIV encephalitis (HIVE). Here we show that the Toll-like receptor 3 (TLR3) ligand poly(I:C) (PIC) induces the expression of IDO in human astrocytes. PIC was less potent than gamma interferon (IFN-γ) but more potent than IFN-β in inducing IDO. PIC induction of IDO was mediated in part by IFN-β but not IFN-γ, and both NF-κB and interferon regulatory factor 3 (IRF3) were requ

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Lajos, Károly, Orsolya Császár, Miklós Sárospataki, Ferenc Samu, and Ferenc Tóth. "Linear woody landscape elements may help to mitigate leaf surface loss caused by the cereal leaf beetle." Landscape Ecology 35, no. 10 (2020): 2225–38. http://dx.doi.org/10.1007/s10980-020-01097-3.

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Abstract Context Woody semi-natural habitats serve as permanent habitats and hibernation sites for natural enemies and, through spillover processes, they play an important role in the biological control of insect pests. However, this service is also dependent on the amount and configuration of the dominating woody habitat types: linear landscape elements (hedgerows, shelterbelts), and more evenly extended plantations. Relating natural enemy action to the landscape context can help to identify the effect of woody habitats on biological control effectiveness. Objectives In the Central European a

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Xiang, Yu, Jing-Jie Tang, Wanyin Tao, Xuezhi Cao, Bao-Liang Song, and Jin Zhong. "Identification of Cholesterol 25-Hydroxylase as a Novel Host Restriction Factor and a Part of the Primary Innate Immune Responses against Hepatitis C Virus Infection." Journal of Virology 89, no. 13 (2015): 6805–16. http://dx.doi.org/10.1128/jvi.00587-15.

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ABSTRACTHepatitis C virus (HCV), a single-stranded positive-sense RNA virus of theFlaviviridaefamily, causes chronic liver diseases, including hepatitis, cirrhosis, and cancer. HCV infection is critically dependent on host lipid metabolism, which contributes to all stages of the viral life cycle, including virus entry, replication, assembly, and release. 25-Hydroxycholesterol (25HC) plays a critical role in regulating lipid metabolism, modulating immune responses, and suppressing viral pathogens. In this study, we showed that 25HC and its synthesizing enzyme cholesterol 25-hydroxylase (CH25H)

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Rivers, Eseabasi, Elechi Asawalam, and Kingsley Emeasor. "Effects of Timing of Okra Introduction in Okra-Ginger Intercropping System on Insect Pests Population and Yield of Okra for Sustainable Agriculture in Uyo, Nigeria." African Journal of Agricultural Science and Food Research 17, no. 1 (2025): 207–18. https://doi.org/10.62154/ajasfr.2024.017.010448.

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A field experiment was conducted at the University of Uyo teaching and research farm, Uyo, Nigeria, during the 2020 and 2021 cropping season to evaluate the effect of timing of okra introduction in okra-ginger intercrop systems on the management of insect pests and the yield of okra. The experiment was arranged in a 3 x 2 split plot design arrangement of treatments, fitted in a randomized complete block design (RCBD), replicated three times. The timing of okra introduction (4, 6 & 8 weeks after planting ginger (WAP)) and intercropping systems (sole okra and okra-ginger intercrop) constitut

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Hall, Belinda S., Emma Smith, Wolfram Langer, Louisa A. Jacobs, David Goulding, and Mark C. Field. "Developmental Variation in Rab11-Dependent Trafficking in Trypanosoma brucei." Eukaryotic Cell 4, no. 5 (2005): 971–80. http://dx.doi.org/10.1128/ec.4.5.971-980.2005.

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ABSTRACT In Trypanosoma brucei, endocytosis is developmentally regulated and is substantially more active in the mammalian infective stage, where it likely plays a role in immune evasion. The small GTPase TbRAB11 is highly expressed in the mammalian stage and mediates recycling of glycosylphosphatidylinositol-anchored proteins, including the variant surface glycoprotein (VSG) and the transferrin receptor, plus trafficking of internalized anti-VSG antibody and transferrin. No function has been assigned to TbRAB11 in the procyclic (insect) stage trypanosome. The importance of TbRAB11 to both blo

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Arsi, Arsi, Suparman SHK, Lailaturrahmi, et al. "Effects of holy basil (Ocimum sanctum) on viral disease of chili (Capsicum annum L.) under mixed crop cultivation." Jurnal Hama dan Penyakit Tumbuhan Tropika 23, no. 2 (2023): 49–57. http://dx.doi.org/10.23960/jhptt.22349-57.

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Chili is one of the important commodities in Indonesia. Chili cultivation faces many obstacles, leading to a decrease in production, such as virus infections. Yellow leaf curl and curly top viruses are groups of viruses that are often found in chili fields. This research was conducted to investigate the effect of intercropping (basil-chili) in suppressing viral diseases, especially yellow leaf curl and curly top viruses. A Randomized block design was used for this research, including intercropping and monoculture. The parameters observed in this study included disease incidence and intensity,

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Saha, Nabaneeta, Malini Kundu, Goutam K. Saha, and Gautam Aditya. "Alternative prey influence the predation of mosquito larvae by three water bug species (Heteroptera: Nepidae)." Limnological Review 20, no. 4 (2020): 173–84. http://dx.doi.org/10.2478/limre-2020-0017.

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Abstract The indirect interactions among multiple prey sharing a common predator characterize apparent competition. In conservation biological control involving mosquitoes and controphic prey against generalist insect predators, apparent competition may be a crucial factor determining the extent of success. The possible influence of apparent competition on mosquito prey consumption by three water bugs (Heteroptera: Nepidae): Ranatra elongata, Ranatra filiformis, and Laccotrephes griseus was assessed under laboratory conditions. Tadpoles (Duttaphrynus melanostictus), chironomid larvae, snails (

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Yi, Guanghui, Yahong Wen, Chang Shu, et al. "Hepatitis C Virus NS4B Can Suppress STING Accumulation To Evade Innate Immune Responses." Journal of Virology 90, no. 1 (2015): 254–65. http://dx.doi.org/10.1128/jvi.01720-15.

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ABSTRACT The cyclic dinucleotide 2′,3′-cGAMP can bind the adaptor protein STING (stimulator of interferon [IFN] genes) to activate the production of type I IFNs and proinflammatory cytokines. We found that cGAMP added to the culture medium could suppress the replication of the hepatitis C virus (HCV) genotype 1b strain Con1 subgenomic replicon in human hepatoma cells. Knockdown of STING expression diminished the inhibitory effect on replicon replication, while overexpression of STING enhanced the inhibitory effects of cGAMP. The addition of cGAMP into 1b/Con1 replicon cells significantly incre

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Yen, Benjamin C., and Christopher F. Basler. "Effects of Filovirus Interferon Antagonists on Responses of Human Monocyte-Derived Dendritic Cells to RNA Virus Infection." Journal of Virology 90, no. 10 (2016): 5108–18. http://dx.doi.org/10.1128/jvi.00191-16.

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ABSTRACTDendritic cells (DCs) are major targets of filovirus infectionin vivo. Previous studies have shown that the filoviruses Ebola virus (EBOV) and Marburg virus (MARV) suppress DC maturationin vitro. Both viruses also encode innate immune evasion functions. The EBOV VP35 (eVP35) and the MARV VP35 (mVP35) proteins each can block RIG-I-like receptor signaling and alpha/beta interferon (IFN-α/β) production. The EBOV VP24 (eVP24) and MARV VP40 (mVP40) proteins each inhibit the production of IFN-stimulated genes (ISGs) by blocking Jak-STAT signaling; however, this occurs by different mechanisms

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Liu, Chengbao, Jinzhu Yu, Ting Fu, et al. "Unveiling the Multifaceted Role of HP6: A Critical Regulator of Humoral Immunity in Antheraea pernyi (Lepidoptera: Saturniidae)." International Journal of Molecular Sciences 26, no. 10 (2025): 4514. https://doi.org/10.3390/ijms26104514.

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Serine proteases are widely distributed in both invertebrates and vertebrates, playing critical roles in the regulation of innate immunity. In the insect innate immune system, two pivotal pathways—the prophenoloxidase (PPO) activation cascade and Toll pathway-mediated antimicrobial peptide (AMP) synthesis—are both tightly regulated by serine protease cascades. This study focuses on serine protease–hemolymph protease 6 of A. pernyi (Ap-HP6). Following immune stimulation, the expression of Ap-proHP6 was significantly induced, primarily observed in hemocytes and the fat body. After suppressing Ap

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Fasina, Olufemi O., Yanming Dong, and David J. Pintel. "NP1 Protein of the Bocaparvovirus Minute Virus of Canines Controls Access to the Viral Capsid Genes via Its Role in RNA Processing." Journal of Virology 90, no. 4 (2015): 1718–28. http://dx.doi.org/10.1128/jvi.02618-15.

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ABSTRACTMinute virus of canines (MVC) is an autonomous parvovirus in the genusBocaparvovirus. It has a single promoter that generates a single pre-mRNA processed via alternative splicing and alternative polyadenylation to produce at least 8 mRNA transcripts. MVC contains two polyadenylation sites, one at the right-hand end of the genome, (pA)d, and another complex site, (pA)p, within the capsid-coding region. During viral infection, the mRNAs must extend through (pA)p and undergo additional splicing of the immediately upstream 3D∕3A intron to access the capsid gene. MVC NP1 is a 22-kDa nuclear

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Lewis, Danielle G., Matthew A. Cutulle, Rebecca A. Schmidt-Jeffris, and Carmen K. Blubaugh. "Better Together? Combining Cover Crop Mulches, Organic Herbicides, and Weed Seed Biological Control in Reduced-Tillage Systems." Environmental Entomology 49, no. 6 (2020): 1327–34. http://dx.doi.org/10.1093/ee/nvaa105.

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Abstract Organic vegetable farmers rely heavily on labor-intensive tillage for weed management, which adversely affects soil health and harms beneficial insects that consume crop pests and weed seeds. Using cover crop residues as a weed-suppressive mulch enables some reduction in tillage, and combining this tool with recently developed organic herbicides may further enhance weed suppression in vegetable production. However, organic herbicides may also adversely affect beneficial insects, and their nontarget effects are unknown. Here, we examine the combined impacts of cultural and chemical too

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HAZİR, Adalet, Miraç YAYLA, Doğancan KAHYA, and Ekrem ATAKAN. "Mersin (Türkiye)’de limon, Citrus limon (L.) (Rutales: Rutaceae) bahçesinde farklı insektisitlerin ve avcı böcek Orius laevigatus (Fieber, 1860) (Hemiptera: Anthocoridae) salımının Thrips hawaiiensis (Morgan,1913) (Thysanoptera: Thripidae)’e karşı etkinliği." Turkish Journal of Entomology 46, no. 4 (2022): 373–83. http://dx.doi.org/10.16970/entoted.1102841.

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The important invasive thrips species Hawaiian flower thrips, Thrips hawaiiensis (Morgan, 1913) (Thysanoptera: Thripidae) was first reported in Türkiye in 2015. Since then, it has been causing damage in lemon orchards. This study was conducted to reveal the most effective insecticides, the most effective spraying time and the efficacy of biological control. For this purpose, the effectiveness of five insecticides (480 g/l spinosad, 25% spinetoram, 100 g/l spirotetramat, 50% flonicamid, 240 g/l tau-fluvalinate), effect of three spray programs and effectiveness of predatory bug Orius laevigatus

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Li, Yinping, Raymond A. Cloyd, and Nora M. Bello. "Effect of Integrating the Entomopathogenic Fungus (Hypocreales: Cordycipitaceae) and the Rove Beetle (Coleoptera: Staphylinidae) in Suppressing Western Flower Thrips (Thysanoptera: Thripidae) Populations Under Greenhouse Conditions." Journal of Economic Entomology 112, no. 5 (2019): 2085–93. http://dx.doi.org/10.1093/jee/toz132.

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Abstract Western flower thrips, Frankliniella occidentalis (Pergande), is a destructive insect pest in greenhouse production systems. Therefore, integrating the entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin, with the soil-dwelling rove beetle, Dalotia coriaria (Kraatz), targeting different aboveground and belowground life stages may help effectively manage western flower thrips populations. Two greenhouse experiments were conducted evaluating five treatments: 1) insecticides (spinosad, pyridalyl, chlorfenapyr, and abamectin), 2) B. bassiana, 3) D. coriaria, 4) B. bassiana and

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Lemic, Jembrek, Bažok, and Pajač Živković. "Ozone Effectiveness on Wheat Weevil Suppression: Preliminary Research." Insects 10, no. 10 (2019): 357. http://dx.doi.org/10.3390/insects10100357.

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Insect infestations within stored product facilities are a major concern to livestock and human food industries. Insect infestations in storage systems can result in economic losses of up to 20%. Furthermore, the presence of insects and their waste and remains in grain and stored foods may pose a health risk to humans and livestock. At present, pests in commercial storage are managed by a combination of different methods ranging from cleaning and cooling to treatment of the stored material with contact insecticides or fumigation. The availability of pesticides for the treatment of grain and ot

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Kotelkin, Alexander, Igor M. Belyakov, Lijuan Yang, Jay A. Berzofsky, Peter L. Collins, and Alexander Bukreyev. "The NS2 Protein of Human Respiratory Syncytial Virus Suppresses the Cytotoxic T-Cell Response as a Consequence of Suppressing the Type I Interferon Response." Journal of Virology 80, no. 12 (2006): 5958–67. http://dx.doi.org/10.1128/jvi.00181-06.

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ABSTRACT The NS1 and NS2 proteins of human respiratory syncytial virus (HRSV) have been shown to antagonize the type I interferon (IFN) response, an effect subject to host range constraints. We have now found that the HRSV NS2 protein strongly controls IFN induction in mouse cells in vitro, validating the use of the mouse model to study the consequences of these gene deletions on host immunity. We evaluated the effects of deleting the NS1 and/or NS2 gene on the induction of HRSV-specific pulmonary cytotoxic T lymphocytes (CTL) in BALB/c and 129S6 mice in response to intranasal infection with H

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Hu, Zongyi, Zhensheng Zhang, Edward Doo, Olivier Coux, Alfred L. Goldberg, and T. Jake Liang. "Hepatitis B Virus X Protein Is both a Substrate and a Potential Inhibitor of the Proteasome Complex." Journal of Virology 73, no. 9 (1999): 7231–40. http://dx.doi.org/10.1128/jvi.73.9.7231-7240.1999.

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ABSTRACT The hepatitis B virus X protein (HBX) is essential for the establishment of HBV infection in vivo and exerts a pleiotropic effect on diverse cellular functions. The yeast two-hybrid system had indicated that HBX could interact with two subunits of the 26S proteasome. Here we demonstrate an association in vivo of HBX with the 26S proteasome complex by coimmunoprecipitation and colocalization upon sucrose gradient centrifugation. Expression of HBX in HepG2 cells caused a modest decrease in the proteasome’s chymotrypsin- and trypsin-like activities and in hydrolysis of ubiquitinated lyso

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