Transcriptomic analysis of the gonads of (Orthoptera: Acrididae) following infection with .

is an environmentally friendly parasitic predator with promising applications in locust control. In this study, transcriptome sequencing was conducted on gonadal tissues of males and females infected and uninfected with at different developmental stages. A total of 18,635 differentially expressed genes (DEGs) were identified in female ovary tissue transcriptomes, with the highest number of DEGs observed at 1 day post-eclosion (7141).

Two Structural Analogs of Kairomones are Detected by an Odorant Receptor HvarOR28 in the Coccinellid .

In natural environments, general plant volatiles and herbivore-induced plant volatiles (HIPVs) serve as critical clues for predatory natural enemies in the search for prey. The insect olfactory system plays a vital role in perceiving plant volatiles including HIPVs. In this study, we found that HIPV (,)-4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT) and the plant volatile geranyl acetate (GA), two structurally similar chemicals, displayed electrophysiological activities on the antennae of the ladybird , but were only attractive to adult females in behavior.

Synergistic mechanism of botanical pesticide camptothecin encapsulated in a nanocarrier against fall armyworm: Enhanced stability and amplified growth suppression.

Botanical pesticides are one of the most promising alternatives to synthetic insecticides for green pest management. However, their efficacies must be further improved to meet real needs. Here we designed a nanoscale camptothecin (CPT) encapsulated in a star polycation (SPc) and determined its bioactivity against a devastating agricultural pest, Spodoptera frugiperda.

Effects of field releases of Neoseiulus barkeri on Megalurothrips usitatus abundance and arthropod diversity.

Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae) is an important pest in Vigna unguiculata (L.) Walp. Neoseiulus barkeri (Hughes) (Acari: Phytoseiidae) is widely used for control of pest mites and insects worldwide.

Correction: Wang et al. Nicotinic Acetylcholine Receptor Alpha6 Contributes to Antiviral Immunity via IMD Pathway in . 2024, , 562.

In the original publication [...

Nicotinic Acetylcholine Receptor Alpha6 Contributes to Antiviral Immunity via IMD Pathway in .

Currently, insecticides that target nicotinic acetylcholine receptors (nAChR) are widely used. Studies on the sublethal effects of insecticides have found that they can affect the amount of virus in insects. The mechanism by which insecticides affect insect virus load remain unclear.

Metarhizium rileyi with broad-spectrum insecticidal ability confers resistance against phytopathogens and insect pests as a phytoendophyte.

Background: Entomophagous fungi (EPF) not only directly kill insect pests, but also colonize plants and improve their resistance against pests. However, most previous research has focused on Beauveria bassiana and Metarhizium anisopliae, and there are few reports on whether other EPF can enhance resistance against pests via endogenous colonization. Herein, an EPF strain was isolated from diseased larvae of Spodoptera litura in a soybean field, and subjected to genome-wide sequencing at the chromosomal level.

First record of as a broad-spectrum entomopathogenic fungus that provides resistance against phytopathogens and insect pests by colonization of plants.

Introduction: is known as a pathogenic fungus that infects humans and plants but has never been reported as an entomophagous fungus (EPF) that can provide other functions as an endotype.

Methods: A strain of EPF was isolated and identified from diseased larvae of in a soybean field and designated AnS1Gzl-1. Pathogenicity of the strain toward various insect pests was evaluated, especially the ability to colonize plants and induce resistance against phytopathogens and insect pests.

Molecular and biochemical changes in Locusta migratoria (Orthoptera: Acrididae) infected with Paranosema locustae.

Microsporidia are a group of eukaryotic intracellular parasitic organisms that infect almost all vertebrates and invertebrates. Paranosema locustae are specialized parasites of Orthoptera that are often used as biological controls of locusts, with slow effects of action. In this study, we found that after infection with P.

Transcriptomic analysis of entomopathogenic fungus Beauveria bassiana infected by a hypervirulent polymycovirus BbPmV-4.

Polymycoviridae is a recently established family of mycoviruses. Beauveria bassiana polymycovirus 4 (BbPmV-4) was previously reported. However, the effect of the virus on host fungus B.

Effect of ultraviolet radiation on Beauveria bassiana virulence and development of protective formulations.

Locusta migratoria is a serious agricultural pest in China. Beauveria bassiana is one of the most important pathogens of grasshoppers and locusts. The effects of ultraviolet light were evaluated on the B.

Defensive Resistance of Cowpea Control Mediated by Jasmonic Acid or Insect Damage.

is a vital vegetable crop in Southeast Asia, and can cause huge damage to this crop. Enhancing the resistance of . against .

Symbiotic Bacteria System of Showed Antifungal Capabilities against .

The stability of symbiotic flora is an important indicator of the health of an organism. Symbiotic bacteria have been proven to be closely involved in the immune process of organisms. The pathogenicity of was studied in relation to symbiotic bacteria on the surface and inside of the migratory locust ().

Interference with orco gene expression affects host recognition in .

Weise is an important insect pest of the Chinese licorice Fisch. Behavior of the beetle, including host location, oviposition site selection, self-defense, and aggregation, were regulated by plant volatiles or insect pheromones. In this study, Identification of ORs and function research on orco were carried out, these could lead to the development of understand for olfaction mechanism in .

Characterization of a Novel Pathogenic Reovirus in Grasshoppers.

Grasshoppers can swarm in the millions and destroy crops over wide areas, posing a major economic threat to agriculture. A wide range of insect-related viruses has recently been reported in the metagenomics of grasshoppers. Here, we identified and isolated a novel reovirus from grasshoppers, named Acrididae reovirus (ARV).

Functional characterization of a terpene synthase responsible for ()-β-ocimene biosynthesis identified in transcriptome after herbivory.

()-β-ocimene, a ubiquitous monoterpene volatile in plants, is emitted from flowers to attract pollinators and/or from vegetative tissues as part of inducible defenses mediated by complex signaling networks when plants are attacked by insect herbivores. Wild pear species used worldwide as rootstock generally displays valuable pest-resistant traits and is a promising genetic resource for pear breeding. In the current study, transcriptional changes in this wild pear species infested with a polyphagous herbivore and the underlying molecular mechanisms were fully investigated.

Effects of Nutritional Composition of Different Prey Eggs on Development and Reproduction of the Predatory Bug, Orius sauteri (Hemiptera: Anthocoridae).

Orius sauteri (Poppius) is an important predator of many economically important insect pests. The mass rearing of O. sauteri is difficult, limiting its application in pest control.

Interspecific spread of dsRNA mycoviruses in entomogenous fungi Beauveria spp.

Mycoviruses can spread interspecifically and intraspecifically in plant pathogenic fungi, as well as spreading intraspecifically in entomogenous fungi, especially Beauveria bassiana. However, whether mycoviruses are common in Beauveria spp. and can spread interspecifically between Beauveria species are unclear.

Identification of diverse viruses associated with grasshoppers unveils the parallel relationship between host phylogeny and virome composition.

Grasshoppers (Orthoptera: Acridoidea) are one of the most dangerous agricultural pests. Environmentally benign microbial pesticides are increasingly desirable for controlling grasshopper outbreaks in fragile ecosystems. However, little is known about natural pathogens infecting this pest.

Bt Cry1Ab/2Ab toxins disrupt the structure of the gut bacterial community of Locusta migratoria through host immune responses.

The gut microbiota of insects plays a vital role in digestion, nutrient acquisition, metabolism of dietary toxins, pathogen immunity and maintenance of gut homeostasis. Bacillus thuringinensis (Bt) poisons target insects through its toxins that are activated in the insect gut. The effects of Bt toxins on gut microbiota of insects and their underlying mechanisms are not well understood.

Effects of aphid-induced semiochemicals from cover plants on Harmonia axyridis (Coleoptera: Coccinellidae).

Background: Harmonia axyridis Pallas (Coleoptera: Coccinellidae) is an important natural enemy of aphids. Plant species and plant health conditions can affect the behavior of H. axyridis.

Effect of genetically modified maize expressing the Cry1Ab and EPSPS proteins on growth, development, and gut bacterial diversity of the non-target arthropod Locusta migratoria.

The widespread cultivation of genetically modified (GM) crops has raised concerns for their safety. Here, we evaluated the effects of a GM maize variety expressing the Cry1Ab (14.76 ± 0.

Transcriptomic and Metabolomic Analysis of Wheat Kernels in Response to the Feeding of Orange Wheat Blossom Midges () in the Field.

The orange wheat blossom midge ( Géhin) is an insect pest that feeds on wheat ( L.). The resistance mechanisms of wheat to infestation are largely unknown.

Antenna-Biased Odorant Receptor HvarOR25 in Tuned to Allelochemicals from Hosts and Habitat Involved in Perceiving Preys.

Odorant receptors (ORs) of ladybird play vital chemosensory roles in searching and locating preys. In the current study, 37 ORs were initially identified from the antennal transcriptome of . The quantitative polymerase chain reaction demonstrated that several including were specific or enriched in ladybird antennae.

Influence of Plant Physical and Anatomical Characteristics on the Ovipositional Preference of (Hemiptera: Anthocoridae).

Natural enemies play an important role in managing insect pests. (Poppius) (Hemiptera: Anthocoridae), a predator of many soft-body insects, is an important biological control agent in Asia. Understanding this predator's egg-laying preferences and a habitat needs is important for its success in pest control.