1,395 results match your criteria Archives Of Insect Biochemistry And Physiology[Journal]


Molecular characterization and expression analysis of a phosphoserine aminotransferase involving l-serine synthesis from silkworm, Bombyx mori.

Arch Insect Biochem Physiol 2019 Apr 19:e21553. Epub 2019 Apr 19.

Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.

In this study, we identified and characterized a phosphoserine aminotransferase (bmPSAT) from Bombyx mori (B. mori) that is responsible for l-serine biosynthesis. A complementary DNA that encodes bmPSAT was cloned by reverse transcriptase polymerase reaction and sequenced. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/arch.21553
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http://dx.doi.org/10.1002/arch.21553DOI Listing
April 2019
1 Read

Host plant defenses of black (Solanum nigrum L.) and red nightshade ( Solanum villosum Mill.) against specialist Solanaceae herbivore Leptinotarsa decemlineata (Say).

Arch Insect Biochem Physiol 2019 Apr 4:e21550. Epub 2019 Apr 4.

London Research and Development Centre, Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, London, Ontario, Canada.

Black nightshade (Solanum nigrum, S. nigrum L.) and red nightshade ( Solanum villosum, S. Read More

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http://dx.doi.org/10.1002/arch.21550DOI Listing
April 2019
3 Reads

Yellowing and YPT gene expression in the desert locust, Schistocerca gregaria: Effects of developmental stages and fasting.

Arch Insect Biochem Physiol 2019 Apr 4:e21551. Epub 2019 Apr 4.

Locust Research Laboratory, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan.

The yellow protein of the takeout family (YPT) controls the development of yellow body color in the desert locust. This study focused on two aspects related to YPT in the locust. We first examined the expression pattern of YPT during nymphal stages because yellowing was not obvious during the early instars. Read More

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Molecular cloning, expression profiling, and functional analysis of a broad-complex isoform 2/3 (Br-Z2/Z3) transcription factor in the diamondback moth, Plutella xylostella (L.).

Arch Insect Biochem Physiol 2019 Apr 3:e21549. Epub 2019 Apr 3.

College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China.

The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a widespread and destructive pest of cruciferous crops. New strategies for controlling it are needed because it is rapidly developing resistance to conventional pesticides. Read More

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http://dx.doi.org/10.1002/arch.21549DOI Listing

Bacterial reproductive manipulators in rice planthoppers.

Arch Insect Biochem Physiol 2019 Mar 25:e21548. Epub 2019 Mar 25.

Department of Entomology, Nanjing Agricultural University, Nanjing, Jiangsu, China.

Rice planthoppers (Hemiptera: Delphacidae) are notorious pests for rice (Oryza sativa) in Asia, posing a serious threat to rice production and grain security. Rice planthoppers harbor diverse bacterial symbionts, including Wolbachia, Cardinium, Spiroplasma, and Arsenophonus, which are known to manipulate reproduction in arthropod hosts. This microreview is to introduce current knowledge of bacterial reproductive manipulators in rice planthoppers, including their diversity, population dynamics, localization, transmission, and biological functions. Read More

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Effects of targeting eye color in Tenebrio molitor through RNA interference of tryptophan 2,3-dioxygenase (vermilion): Implications for insect farming.

Arch Insect Biochem Physiol 2019 May 25;101(1):e21546. Epub 2019 Mar 25.

Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, North Carolina.

The gene vermilion encodes tryptophan 2,3-dioxygenase, part of the ommochrome pathway, and is responsible for the dark pigmented eyes in some insects, including beetles. Using RNA interference, we targeted the vermilion gene ortholog in embryos and pupae of the yellow mealworm, Tenebrio molitor, resulting in larvae and adults, respectively, that lacked eye pigment. RNA-Seq was used to analyze the impact of vermilion-specific RNA interference on gene expression. Read More

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http://dx.doi.org/10.1002/arch.21546DOI Listing
May 2019
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Comparison of male antennal morphology and sensilla physiology for sex pheromone olfactory sensing between sibling moth species: Ectropis grisescens and Ectropis obliqua (Geometridae).

Arch Insect Biochem Physiol 2019 May 14;101(1):e21545. Epub 2019 Mar 14.

Research Center of Agricultural Products Quality Safety, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Xihu District, China.

Ectropis grisescens and Ectropis obliqua (Lepidoptera: Geometridae) are sibling pest species that co-occur on tea plants. The sex pheromone components of both species contain (Z,Z,Z)-3,6,9-octadecatriene and (Z,Z)-3,9-cis-6,7-epoxy-octadecadiene. E. Read More

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http://dx.doi.org/10.1002/arch.21545DOI Listing

The progress in insect cross-resistance among Bacillus thuringiensis toxins.

Arch Insect Biochem Physiol 2019 Mar 12:e21547. Epub 2019 Mar 12.

State Key Laboratory of Wheat and Maize Crop Science, College of Plant Protection, Henan Agricultural University, Zhengzhou, China.

Bt crop pyramids produce two or more Bt proteins active to broaden the spectrum of action and to delay the development of resistance in exposed insect populations. The cross-resistance between Bt toxins is a vital restriction factor for Bt crop pyramids, which may reduce the effect of pyramid strategy. In this review, the status of the cross-resistance among more than 20 Bt toxins that are most commonly used against 13 insect pests was analyzed. Read More

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http://dx.doi.org/10.1002/arch.21547DOI Listing

Ticks (Acari: Ixodoidea) in China: Geographical distribution, host diversity, and specificity.

Arch Insect Biochem Physiol 2019 Mar 11:e21544. Epub 2019 Mar 11.

Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, China.

Ticks are obligate blood-sucking ectoparasites, which not only directly damage through bites but also transmit many pathogens. China has a high diversity of tick species, 125 species have been reported, including 111 hard tick and 14 soft tick species. Many of the ticks are important vectors of pathogens, resulting in zoonoses. Read More

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http://dx.doi.org/10.1002/arch.21544DOI Listing

Changes in immune responses of Helicoverpa armigera Hübner followed by feeding on Knotgrass, Polygonum persicaria agglutinin.

Arch Insect Biochem Physiol 2019 May 10;101(1):e21543. Epub 2019 Mar 10.

Department of Plant Protection, Faculty of agricultural sciences, University of Guilan, Rasht, Iran.

There is no study implying the effect of plant lectins on insect immune elements in both challenged and non-challenged conditions with entomopathogenic agents. Lectins may bind to immune receptors on the surface of insect hemocytes, thus inducing or even disabling common immune functions including hemocyte counts, nodulation/encapsulation, phenoloxidase activity, and synthesis of antimicrobial peptides. In the present study, effect of Polygonum persicaria L. Read More

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http://dx.doi.org/10.1002/arch.21543DOI Listing
May 2019
1.021 Impact Factor

Spatiotemporally different expression of alternatively spliced GABA receptor subunit transcripts in the housefly Musca domestica.

Arch Insect Biochem Physiol 2019 May 28;101(1):e21541. Epub 2019 Feb 28.

Department of Life Science and Biotechnology, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane, Japan.

Insect γ-aminobutyric acid (GABA) receptors are important as major inhibitory neurotransmitter receptors and targets for insecticides. The housefly GABA receptor subunit gene MdRdl is alternatively spliced at exons 3 (a or b) and 6 (c or d) to yield the variants of ac, ad, bc, and bd combinations. In the present study, the expression of the MdRdl transcript in the body parts and in the developmental stages of the housefly Musca domestica was examined by quantitative polymerase chain reaction using specific primers that amplify the combinations of alternative exons. Read More

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http://dx.doi.org/10.1002/arch.21541DOI Listing

Antennal transcriptome analysis of the maize weevil Sitophilus zeamais: Identification and tissue expression profiling of candidate odorant-binding protein genes.

Arch Insect Biochem Physiol 2019 May 28;101(1):e21542. Epub 2019 Feb 28.

Department of Entomology, University of Maryland, College Park, Maryland.

Our bioassays reviewed that antennae played crucial roles in the responses of maize weevil (Sitophilus zeamais) to food and sex volatiles. In order to identify the maize weevil odorant-binding protein (OBP) genes, we analyzed its antennal transcriptome. In total, 21,587,928 high-quality clean reads were obtained from RNA-seq, 52,206 unigenes were assembled, and 25,744 unigenes showed significant similarity ( E value < 10 ) to known proteins in the NCBI nonredundant protein database. Read More

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http://dx.doi.org/10.1002/arch.21542DOI Listing
May 2019
2 Reads

Stress-related hormones affect carbohydrate metabolism in Drosophila females.

Arch Insect Biochem Physiol 2019 May 21;101(1):e21540. Epub 2019 Feb 21.

Department of Insects Genetics, Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.

A highly conservative insulin signaling pathway, stable work of which is indicated by carbohydrates metabolism, is also known to play an important role in the control of stress resistance. Here we demonstrate that exposure to heat stress leads to a rise in the levels of trehalose and glucose in females of Drosophila melanogaster, but does not affect the expression level of the trehalase (Treh) gene. We have shown that the rise in juvenile hormone (JH) and dopamine decreases levels of both carbohydrates under the normal conditions but brings them to values close to normal following the stress exposure. Read More

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http://dx.doi.org/10.1002/arch.21540DOI Listing
May 2019
2 Reads

Baculoviral infection reduces the expression of four allergen proteins of silkworm pupa.

Arch Insect Biochem Physiol 2019 Apr 21;100(4):e21539. Epub 2019 Feb 21.

Department of Clinical Veterinary, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China.

Silkworm (Bombyx mori) larvae are widely used to express exogenous proteins. Moreover, some silkworm pupal proteins can be used as drug-loading materials for selfexpressed oral tolerance drugs. However, several proteins expressed in silkworm pupae cause severe allergic reactions in humans and animals. Read More

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http://dx.doi.org/10.1002/arch.21539DOI Listing
April 2019
1 Read

TRE1 and CHS1 contribute to deltamethrin resistance in Culex pipiens pallens.

Arch Insect Biochem Physiol 2019 Apr 19;100(4):e21538. Epub 2019 Feb 19.

Department of Pathogen Biology, Nanjing Medical University, Nanjing, China.

Cuticular resistance, characterized by decreased epidermal penetration, has been reported on highly pyrethroid-resistant mosquitoes. In this study, we examined the role of genes in the chitin biosynthetic pathway in the context of deltamethrin-resistant (DR) Culex pipiens pallens. We found that expression of the trehalase (TRE1) gene and chitin synthase (CHS1) gene was upregulated 1. Read More

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http://dx.doi.org/10.1002/arch.21538DOI Listing
April 2019
2 Reads

Inhibition of fatty acid desaturation impairs cuticle differentiation in Drosophila melanogaster.

Arch Insect Biochem Physiol 2019 Apr 23;100(4):e21535. Epub 2019 Jan 23.

Université Côte d'Azur, CNRS, Inserm, Institute of Biology Valrose, Nice, France.

Previously, we showed that inhibition of the activity of fatty acid desaturases (Desat) perturbs signalling of the developmental timing hormone ecdysone in the fruit fly Drosophila melanogaster. To understand the impact of this effect on cuticle differentiation, a process regulated by ecdysone, we analysed the cuticle of D. melanogaster larvae fed with the Desat inhibitor CA10556. Read More

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http://dx.doi.org/10.1002/arch.21535DOI Listing
April 2019
18 Reads

How does saliva function in planthopper-host interactions?

Arch Insect Biochem Physiol 2019 Apr 21;100(4):e21537. Epub 2019 Jan 21.

Department of Entomology, Nanjing Agricultural University, Nanjing, Jiangsu, China.

Planthoppers are highly destructive pests that damage rice plants by feeding and transmitting viruses. They feed on phloem sap using specialized mouthparts and secrete saliva during feeding. Over the past decade, genomic, transcriptomic, and proteomic approaches have greatly improved our understanding of the complexity of planthopper saliva, and have provided a glimpse of planthopper-plant interactions. Read More

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http://dx.doi.org/10.1002/arch.21537DOI Listing
April 2019
2 Reads

Molecular characterization and expression patterns of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) heat shock protein genes and their response to host stress.

Arch Insect Biochem Physiol 2019 Apr 19;100(4):e21536. Epub 2019 Jan 19.

Department of Entomology, College of Plant Protection, Anhui Agricultural University, Hefei, Anhui, China.

As a polyphagous insect, little is known at the molecular level about the effects of different host plants on physiological changes in Phenacoccus solenopsis. In this study, four heat shock protein (Hsp) genes (PsHsp60, PsHsp70, PsHsp90, and PsHsp20.7) were identified from the transcriptome of P. Read More

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April 2019
2 Reads

Analysis of the Gynaephora qinghaiensis pupae immune transcriptome in response to parasitization by Thektogaster sp.

Arch Insect Biochem Physiol 2019 Mar 17;100(3):e21553. Epub 2019 Jan 17.

Food and Health Engineering Research Center of the State Education Ministry, School of Life Science, Sun Yat-Sen University, Guangzhou, China.

As a pest on the Qinghai-Tibet Plateau, Gynaephora qinghaiensis causes severe damage to grassland vegetation and its pupae are also natural hosts of Thektogaster sp. To successfully parasitize, endoparasitoids generally introduce or secrete multiple parasitic factors into the host body during the spawning stage to suppress the host immune response. To study the parasitic effects of Thektogaster sp. Read More

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http://doi.wiley.com/10.1002/arch.21533
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http://dx.doi.org/10.1002/arch.21533DOI Listing
March 2019
11 Reads

Effects of toxic β-glucosides on carbohydrate metabolism in cotton bollworm, Helicoverpa armigera (Hübner).

Arch Insect Biochem Physiol 2019 Apr 17;100(4):e21526. Epub 2019 Jan 17.

School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, China.

The purpose of this study was to evaluate the effects of three toxic β-glucosides, phlorizin, santonin, and amygdalin, on carbohydrate metabolism in the cotton bollworm, Helicoverpa armigera (Hübner), when diets mixed with β-glucosides were fed to third-instar larvae. The growth of the larvae was significantly inhibited by exposure to santonin after 96 hr but not obviously affected by phlorizin and amygdalin. The midgut trehalase activities were only 51. Read More

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http://dx.doi.org/10.1002/arch.21526DOI Listing

Tribolium castaneum as a whole-animal screening system for the detection and characterization of neuroprotective substances.

Arch Insect Biochem Physiol 2019 Mar 17;100(3):e21532. Epub 2019 Jan 17.

Department of Bioresources, Fraunhofer Institute of Molecular Biology and Applied Ecology, Giessen, Germany.

Parkinson's disease (PD) is a movement disorder caused by the progressive loss of dopaminergic neurons. Natural antioxidants and plant extracts with neuroprotective properties offer a promising new therapeutic approach for PD patients, but a suitable large-scale screening system is required for their discovery and preclinical analysis. Here we used the red flour beetle (Tribolium castaneum ) as a whole-animal screening system for the detection and characterization of neuroprotective substances. Read More

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http://dx.doi.org/10.1002/arch.21532DOI Listing
March 2019
3 Reads

Spodoptera litura cyclophilin A is required for Microplitis bicoloratus bracovirus-induced apoptosis during insect cellular immune response.

Arch Insect Biochem Physiol 2019 Mar 8;100(3). Epub 2019 Jan 8.

Center for Life Science, School of Life Sciences, Yunnan University, Kunming, People's Republic of China.

Microplitis bicoloratus bracovirus (MbBV) is a polydnavirus found in the parasitic wasp M. bicoloratus. Although MbBV is a known inducer of apoptosis in host hemocytes, the mechanism by which this occurs remains elusive. Read More

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http://doi.wiley.com/10.1002/arch.21534
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http://dx.doi.org/10.1002/arch.21534DOI Listing
March 2019
12 Reads
1.021 Impact Factor

DNA methyltransferase BmDnmt1 and BmDnmt2 in silkworm (Bombyx mori) and the regulation of silkworm embryonic development.

Arch Insect Biochem Physiol 2019 Mar 26;100(3):e21529. Epub 2018 Dec 26.

School of Life Sciences, Anhui Agricultural University, Hefei, China.

DNA methylation is one of the most widespread epigenetic marks and has been linked to insect development, especially influencing embryonic development. However, the regulation of DNA methylation in silkworm embryonic development and diapause remain to investigate. In this study, reverse-transcription quantitative polymerase chain reaction was performed to identify the expression level of Bombyx mori DNA methyltransferases (BmDNMTs) 1 and 2 ( BmDnmt1 and BmDnmt2) in different tissues, different embryonic developmental stages, and different strains of the silkworm. Read More

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http://dx.doi.org/10.1002/arch.21529DOI Listing

RNA interference-mediated knockdown of eye coloration genes in the western tarnished plant bug (Lygus hesperus Knight).

Arch Insect Biochem Physiol 2019 Feb 26;100(2):e21527. Epub 2018 Dec 26.

USDA-ARS Arid Land Agricultural Center, Maricopa, Arizona.

Insect eye coloration arises from the accumulation of various pigments. A number of genes that function in the biosynthesis (vermilion, cinnabar, and cardinal) and importation (karmoisin, white, scarlet, and brown) of these pigments, and their precursors, have been identified in diverse species and used as markers for transgenesis and gene editing. To examine their suitability as visible markers in Lygus hesperus Knight (western tarnished plant bug), transcriptomic data were screened for sequences exhibiting homology with the Drosophila melanogaster proteins. Read More

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http://dx.doi.org/10.1002/arch.21527DOI Listing
February 2019
1 Read

Purification and characterization of phenoloxidase from the hemolymph of healthy and diseased Antheraea assamensis Helfer (Lepidoptera: Saturniidae): Effects of certain biological components and chemical agents on enzyme activity.

Arch Insect Biochem Physiol 2019 Mar 26;100(3):e21531. Epub 2018 Dec 26.

Department of Life Sciences, Dibrugarh University, Dibrugarh, India.

In the current study, a dimeric phenoloxidase (PO) from the hemolymph of healthy and diseased (pebrine infected) larvae of Antheraea assamensis Helfer was extracted and purified. The protein was subjected to purification using Sephacryl S-100 and CM Sepharose chromatography. The enzyme comprised of two subunits of ~76. Read More

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http://dx.doi.org/10.1002/arch.21531DOI Listing

Differential responses between a vector species Bemisia tabaci and a nonvector species Trialeurodes vaporariorum following ingestion of tomato yellow leaf curl virus.

Arch Insect Biochem Physiol 2019 Feb 20;100(2):e21503. Epub 2018 Dec 20.

Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea.

In transmitting plant viruses, insect vectors undergo physiological and behavioral alterations. The whitefly Bemisia tabaci is a vector of tomato yellow leaf curl virus (TYLCV), causing severe damages to various horticultural crop plants. To determine whether whitefly alteration is specific to vector species, the responses to TYLCV ingestion were compared between B. Read More

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http://dx.doi.org/10.1002/arch.21517DOI Listing
February 2019
1 Read

Both farnesyl diphosphate synthase genes are involved in the production of alarm pheromone in the green peach aphid Myzus persicae.

Arch Insect Biochem Physiol 2019 Mar 19;100(3):e21530. Epub 2018 Dec 19.

Department of Entomology and MOA Key Laboratory for Monitoring and Environment-Friendly Control of Crop Pests, College of Plant Protection, China Agricultural University, Beijing, China.

Farnesyl diphosphate synthase (FPPS) catalyzes the formation of FPP, providing the precursor for the biosynthesis of (E)-β-farnesene (EβF) in plants, but it is unknown if FPPS supplies the precursor for the biosynthesis of EβF, the major component of aphid alarm pheromone, though our previous studies support the hypothesis that EβF is synthesized by the aphid itself. Here, we used two cohorts of the green peach aphid Myzus persicae separately, reared on pepper plant and artificial diet to test the correlations among droplet emission, EβF quantity, and FPPS gene expression. It was found that the proportion of aphids emitting cornicle droplets and the quantity of EβF per milligram of aphid were both significantly different between the two cohorts, which were positively correlated with the expression of the two FPPS genes ( MpFPPS1/ 2) in M. Read More

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http://doi.wiley.com/10.1002/arch.21530
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March 2019
10 Reads

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Authors:
Yonggyun Kim

Arch Insect Biochem Physiol 2019 Jan;100(1):e21528

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January 2019

Insulin-like peptides of the legume pod borer, Maruca vitrata, and their mediation effects on hemolymph trehalose level, larval development, and adult reproduction.

Arch Insect Biochem Physiol 2019 Feb 10;100(2):e21524. Epub 2018 Dec 10.

Department of Plant Medicals, Andong National University, Andong, Korea.

Insulin-like peptides (ILPs) of insects mediate various physiological processes including hemolymph sugar level, immature growth, female reproduction, and lifespan. In target cells of ILPs, insulin/insulin-like growth factor signaling (IIS) is highly conserved in animals. IIS in the legume pod borer, Maruca vitrata (Lepidoptera: Crambidae), is known to be involved in maintaining hemolymph trehalose levels and promoting larval growth. Read More

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February 2019
4 Reads

An overexpressed cytochrome P450 CYP439A1v3 confers deltamethrin resistance in Laodelphax striatellus Fallén (Hemiptera: Delphacidae).

Arch Insect Biochem Physiol 2019 Feb 4;100(2):e21525. Epub 2018 Dec 4.

Department of Entomology, College of Plant Protection, Nanjing Agricultural University, The Key Laboratory of Monitoring and Management of Plant Diseases and Insects, Ministry of Agriculture, Nanjing, Jiangsu, China.

Deltamethrin resistance in Laodelphax striatellus had been associated with its oxidative detoxification by overexpression of four cytochrome P450 monooxygenases like CYP353D1v2, CYP6FU1, CYP6AY3v2, and CYP439A1v3. The first three P450s have been validated for insecticide-metabolizing capability and only CYP6FU1 was found to degrade deltamethrin. In this study, an investigation was conducted to confirm the capability of CYP439A1v3 to degrade deltamethrin. Read More

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http://dx.doi.org/10.1002/arch.21525DOI Listing
February 2019
1 Read

Potential of RNA interference in the study and management of the whitefly, Bemisia tabaci.

Arch Insect Biochem Physiol 2019 Feb 28;100(2):e21522. Epub 2018 Nov 28.

Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.

Whiteflies cause considerable losses to crops, directly by feeding, and indirectly by transmission of viruses. The current control methods consist of a combination of different control tactics, mainly still relying on unsafe and non-ecofriendly chemical control. RNA interference (RNAi) is a post-transcriptional gene-silencing strategy in which double-stranded RNA (dsRNA), corresponding specifically to a target gene, is introduced in a target organism. Read More

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http://dx.doi.org/10.1002/arch.21522DOI Listing
February 2019

Protein-protein interaction network analysis of insecticide resistance molecular mechanism in Drosophila melanogaster.

Arch Insect Biochem Physiol 2019 Jan 26;100(1):e21523. Epub 2018 Nov 26.

School of Life Sciences, Sun Yat-Sen University, Guangzhou, China.

The problem of resistance has not been solved fundamentally at present, because the development speed of new insecticides can not keep pace with the development speed of resistance, and the lack of understanding of molecular mechanism of resistance. Here we collected seed genes and their interacting proteins involved in insecticide resistance molecular mechanism in Drosophila melanogaster by literature mining and the String database. We identified a total of 528 proteins and 13514 protein-protein interactions. Read More

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http://dx.doi.org/10.1002/arch.21523DOI Listing
January 2019
2 Reads

Water channel activity of putative aquaporin-6 present in Aedes aegypti.

Arch Insect Biochem Physiol 2019 Jan 19;100(1):e21519. Epub 2018 Nov 19.

Department of Ion Channel Biology Laboratory, AU-KBC Research Centre, Madras Institute of Technology, Anna University, Chennai, India.

Aquaporins (AQPs) are integral membrane channels that facilitate the bidirectional transport of water and sometimes other small solutes across biological membranes. AQPs are important in mediating environmental adaptations in mosquitoes and are considered as a novel target for the development of effective insecticides against mosquitoes. Here, we expressed Aedes aegypti AQP6 ( AaAQP6) in human embryonic kidney (HEK) 293 cells and analyzed the water permeability by a conventional swelling assay, that is, a real-time change in cell size corresponding to the cell swelling induced by hyposmotic solution. Read More

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http://doi.wiley.com/10.1002/arch.21519
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January 2019
17 Reads

Proteomics as a tool for tapping potential of entomopathogens as microbial insecticides.

Arch Insect Biochem Physiol 2019 Jan 13;100(1):e21520. Epub 2018 Nov 13.

Institute of Systems Biology, Universiti Kebangsaan Malaysia, Selangor, Malaysia.

Biopesticides are collective pest control harnessing the knowledge of the target pest and its natural enemies that minimize the risks of synthetic pesticides. A subset of biopesticides; bioinsecticides, are specifically used in controlling insect pests. Entomopathogens (EPMs) are micro-organisms sought after as subject for bioinsecticide development. Read More

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http://doi.wiley.com/10.1002/arch.21520
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January 2019
15 Reads

The contribution of gustatory input to larval acceptance and female oviposition choice of potential host plants in Papilio hospiton (Géné).

Arch Insect Biochem Physiol 2019 Jan 12;100(1):e21521. Epub 2018 Nov 12.

Department of Biomedical Sciences, Section of Physiology, University of Cagliari, Monserrato, Italy.

The Lepidopteran Papilio hospiton uses only plants belonging to the Apiaceae and the Rutaceae families as hosts. Both adult females and larvae are equipped with gustatory receptor neurons (GRNs) capable of detecting sugars, bitters and salts, thus providing information for evaluating the chemical composition of the plant. Since the activation of these neurons may affect insect behavior, the aim of this study were: (a) to study the gustatory sensitivity of both females and larvae to the sap of two Apiaceae, Foeniculum vulgare (fennel) and Daucus carota (carrot), that are not used as host plants; (b) to cross-compare the spike activity evoked from these two plants with that evoked by Ferula communis (ferula), the host plant preferred by ovipositing females of P. Read More

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http://dx.doi.org/10.1002/arch.21521DOI Listing
January 2019
1 Read

Three vital RNA functions and interactions in the process of silk gland apoptosis in silkworm Bombyx mori.

Arch Insect Biochem Physiol 2019 Jan 11;100(1):e21511. Epub 2018 Nov 11.

College of Animal Sciences, Zhejiang University, Hangzhou, China.

The Silkworm Bombyx mori is an important insect in terms of economics and a model organism with a complete metamorphosis. The economic importance of silkworms is dependent on the functions of the silkgland, a specialized organ that synthesizes silk proteins. The silk gland undergoes massive degeneration during the larval to pupal stage, which involves in cell apoptosis. Read More

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http://dx.doi.org/10.1002/arch.21511DOI Listing
January 2019
2 Reads

An investigation of the molecular and biochemical basis underlying chlorantraniliprole-resistant Drosophila strains and their cross-resistance to other insecticides.

Arch Insect Biochem Physiol 2018 Dec 5;99(4):e21514. Epub 2018 Nov 5.

Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju-gun, South Korea.

Chlorantraniliprole is an anthranilic diamide insecticide that binds to the insect ryanodine receptor (RyR) and induces an uncontrolled release of Ca , resulting in paralysis and ultimately death of the target insects. Recently, it was reported that chlorantraniliprole-resistant diamondback moths, Plutella xylostella Linnaeus, have mutations in their RyR. In this study, we developed two different chlorantraniliprole-resistant Drosophila melanogaster strain. Read More

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http://doi.wiley.com/10.1002/arch.21514
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December 2018
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Repellent action and contact toxicity mechanisms of the essential oil extracted from Chinese chive against Plutella xylostella larvae.

Arch Insect Biochem Physiol 2019 Jan 2;100(1):e21509. Epub 2018 Nov 2.

State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing, China.

Botanical pesticides play increasingly important roles in the control of agricultural pests. In this study, the insecticidal effects, specifically the repellent action and contact toxicity, of the essential oil extracted from Chinese chive (EOC) against Plutella xylostella larvae were confirmed. The mechanisms of repellent's action were studied using electroantennograms (EAGs), and the effects on glutathione S-transferase (GST), carboxylesterase (CarE), and acetyl cholinesterase were investigated after EOC treatments. Read More

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January 2019
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Molecular cloning and functional analysis of small heat shock protein 19.1 gene from the Chinese oak silkworm, Antheraea pernyi.

Arch Insect Biochem Physiol 2018 Dec 2;99(4):e21516. Epub 2018 Nov 2.

College of Life Sciences, Anhui Agricultural University, Hefei, China.

Small heat shock proteins (sHSPs) are a class of highly conserved proteins that are ubiquitously found in all types of organisms, from prokaryotes to eukaryotes. In the current study, we identified and characterized the full-length cDNA encoding sHSP 19.1 from the oak silkworm, Antheraea pernyi. Read More

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December 2018
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Variation in the cuticular hydrocarbons of the Mexican fruit fly Anastrepha ludens males between strains and age classes.

Arch Insect Biochem Physiol 2018 Dec 2;99(4):e21513. Epub 2018 Nov 2.

El Colegio de la Frontera Sur, Carretera Antiguo Aeropuerto km 2.5, Tapachula, Mexico.

In this study cuticular hydrocarbons (CHCs) were characterized from wings of individual unmated males of different Anastrepha ludens (Loew) mass-reared strains of different ages (3 and 19-day-old): (a) a standard mass-reared colony (control), (b) a genetic sexing strain, (c) a selected strain, (d) a hybrid strain, and (e) wild males. We found that the hydrocarbon profiles in all males included two n-alkanes, five monomethyl alkanes, and two alkenes. CHCs ranged from C to C . Read More

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December 2018
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Degradation of sex pheromone and plant volatile components by an antennal glutathione S-transferase in the oriental fruit moth,Grapholita molesta Busck (Lepidoptera: Tortricidae).

Arch Insect Biochem Physiol 2018 Dec 2;99(4):e21512. Epub 2018 Nov 2.

Key Laboratory of Plant Protection Resources and Pest Management (Northwest A&F University), Ministry of Education, Yangling, China.

Insect antennae have a primary function of perceiving and discerning odorant molecules including sex pheromones and host plant volatiles. The assumption that genes highly expressed in the antennae may have an olfactory-related role associated with signal transduction. Here, one delta subfamily glutathione S-transferase (GST) gene (GmolGSTD1) was obtained from an antennal transcriptome of Grapholita molesta. Read More

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December 2018
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Olfactory attraction mediated by the maxillary palps in the striped fruit fly, Bactrocera scutellata: Electrophysiological and behavioral study.

Arch Insect Biochem Physiol 2018 Dec 22;99(4):e21510. Epub 2018 Oct 22.

Core Facility Management Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon, Korea.

Here, we report that the olfactory attraction of the striped fruit fly, Bactrocera scutellata (Hendel; Diptera: Tephritidae), a serious pest of pumpkin and other cucurbitaceae plants, to cue lure and raspberry ketone is mediated by the maxillary palps. The antennae, bearing three morphological types (basiconic, trichoid, and coeloconic) of olfactory sensilla, in male and female B. scutellata exhibited significant electroantennogram (EAG) responses to a plant volatile compound, 3-octanone, and methyl eugenol, whereas cue lure, raspberry ketone, and zingerone that are known to attract several other species of Bactrocera fruit flies elicited no significant EAG responses from both sexes. Read More

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December 2018
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Evaluation of the attractant effect and lipid profile modulation of natural fixed oils on the medfly Ceratitis capitata (Wiedemann).

Arch Insect Biochem Physiol 2018 Dec 9;99(4):e21508. Epub 2018 Oct 9.

Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, Cagliari, Italy.

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann, 1824; Diptera: Tephritidae), is a polyphagous pest in horticulture, mainly targeting Citrus fruits. Natural essential and fixed oils are currently under investigation for their broad-spectrum in pest control. To gain better knowledge about medfly behavior and biochemistry, we examined with behavioral and biochemical assays, the effects on C. Read More

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December 2018
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Inhibition of silkworm vacuolar-type ATPase activity by its inhibitor Bafilomycin A1 induces caspase-dependent apoptosis in an embryonic cell line of silkworm.

Arch Insect Biochem Physiol 2018 Nov 24;99(3):e21507. Epub 2018 Sep 24.

State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China.

Vacuolar-type ATPase (V-ATPase) is a type of hydrogen ion transporter located in the vesicular membrane-like system, which mediates active transport and intracellular acidification in various compartments. In mammals, V-ATPase has been reported to play a key role in cell proliferation and apoptosis. The studies of V-ATPase in silkworm mainly focus on the acidification regulation of midgut and silk gland and immune resistance. Read More

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November 2018
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Development of a highly accurate and sensitive diagnostic tool for pyrethroid-resistant chimeric P450 CYP337B3 of Helicoverpa armigera using loop-mediated isothermal amplification.

Arch Insect Biochem Physiol 2018 Nov 15;99(3):e21504. Epub 2018 Sep 15.

Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon, Korea.

Recent studies have shown that pyrethroid resistance in the cotton bollworm (CBW) Helicoverpa armigera is conferred by the generation of a chimeric CYP337B3 gene, which resulted from unequal crossing-over between the CYP337B1 and CYP337B2 genes. In this study, we developed a diagnostic protocol based on the loop-mediated isothermal amplification (LAMP) assay for the detection of chimeric CYP337B3. The CYP337B3 LAMP assay utilized six primers and generated strong fluorescence signals visible to the naked eye under normal or ultraviolet light. Read More

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November 2018
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Identification and characterization of capa and pyrokinin genes in the brown marmorated stink bug, Halyomorpha halys (Hemiptera): Gene structure, immunocytochemistry, and differential expression.

Arch Insect Biochem Physiol 2018 Nov 6;99(3):e21500. Epub 2018 Sep 6.

USDA-ARS, Horticultural Crops Research Unit, Corvallis, Oregon.

CAPA and pyrokinin (PK) neuropeptides are produced from two different genes, capa and pyrokinin, respectively. In this study, we identified and characterized the capa and pyrokinin genes from the brown marmorated stink bug, Halyomorpha halys (Hemiptera). The capa gene encodes two CAPA-PVK (periviscerokinin) peptides (DAGLFPFPRVamide and EQLIPFPRVamide) and one CAPA-DH (diapause hormone; NGASGNGGLWFGPRLamide). Read More

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http://doi.wiley.com/10.1002/arch.21500
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November 2018
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Juvenile hormone affects the splicing of Culex quinquefasciatus early trypsin messenger RNA.

Arch Insect Biochem Physiol 2018 Nov 3;99(3):e21506. Epub 2018 Sep 3.

Horticultural Research Laboratory, USDA-ARS, Fort Pierce, Florida.

The full length of Culex quiquefasciatus early trypsin has been cloned and sequenced and a three-dimensional (3D) model of the enzyme was built showing that the enzyme has the canonical trypsin's active pocket containing H78, D123, S129, and D128. The biosynthesis of juvenile hormone (JH) III by the corpora allata (CA) in female Cx. quiquefasciatus is sugar-dependent. Read More

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http://doi.wiley.com/10.1002/arch.21506
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November 2018
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Superoxide dismutase from venom of the ectoparasitoid Scleroderma guani inhibits melanization of hemolymph.

Arch Insect Biochem Physiol 2018 Nov 17;99(3):e21503. Epub 2018 Aug 17.

Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming, China.

Superoxide dismutase (SOD) known as an important antioxidative stress protein has been recently found in venoms of several parasitoid wasps. However, its functions and characteristics as a virulent factor remain scarcely described. Here, we report the characterization of two venomous SOD genes (SguaSOD1 and SguaSOD3) from the ectoparasitoid, Scleroderma guani. Read More

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November 2018
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Eicosanoid mediation of immune responses at early bacterial infection stage and its inhibition by Photorhabdus temperata subsp. temperata, an entomopathogenic bacterium.

Arch Insect Biochem Physiol 2018 Dec 17;99(4):e21502. Epub 2018 Aug 17.

Department of Plant Medicals, College of Natural Sciences, Andong National University, Andong, Korea.

An entomopathogenic bacterium Photorhabdus temperata subsp. temperata (Ptt) infects insect hemocoel by the vectoring activity of its symbiotic nematode, Heterorhabditis megidis. The bacterium induces host immunosuppression by inhibiting eicosanoid biosynthesis. Read More

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December 2018
20 Reads

Culturable epiphytic bacteria isolated from Teleogryllus occipitalus crickets metabolize insecticides.

Arch Insect Biochem Physiol 2018 Oct 17;99(2):e21501. Epub 2018 Aug 17.

Key Laboratory of Leather Chemistry and Engineering, Ministry of Education and College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China.

The development of insecticide resistance is attributed to evolutionary changes in pest insect genomes, such as alteration of drug target sites, upregulation of degrading enzymes, and enhancement of drug excretion. Beyond these well-known mechanisms, symbiotic bacteria may confer insecticide resistance to host crickets. The current study was designed to screen all possible culturable bacterial groups found living in and on the bodies of Teleogryllus occipitalis crickets. Read More

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October 2018
7 Reads