Functional characterization of Niemann-Pick proteins type C2 as odorant carriers in Neoseiulus barkeri olfactory perception.

Arthropods utilize olfactory function to detect informational substances within their natural habitats, thereby facilitating essential life activities such as foraging, mating, and oviposition. Niemann-Pick protein type C2 (NPC2), a putative odorant carrier, has not been fully described in the olfactory perception of predatory mites. In this study, we characterized in detail the olfactory perception functions of NbNPC2-2 and NbNPC2-3 in the important predatory mite Neoseiulus barkeri.

Azoxystrobin/ chitosan -graft- salicylic acid nanomicelles for dual-targeted rice protection: Antifungal and salt stress mitigation.

This paper studied the effect of a new type of nano-pesticide on the control of rice blast (Magnaporthe oryzae) disease. In this study, AZOX/CS-graft-SA (azoxystrobin/chitosan-salicylic acid) nanoformulations were prepared, and the inhibitory effects of different concentrations on rice blast fungus and effects on rice growth and development were determined. The results showed all three drugs could effectively inhibit fungal growth, and the higher the concentration, the more significant the effect.

A CNN-LSTM-attention based seepage pressure prediction method for Earth and rock dams.

The objective of seepage pressure monitoring of earth and rock dams is to predict seepage pressure in order to avoid potential risks. However, existing models for predicting seepage pressure in earth and rock dams do not account for the numerous nonlinearities between seepage pressure and the factors that influence it. These models lack the accuracy and generalizability required for effective risk management.

Demographic parameters and asynchronous ovary development in Eocanthecona furcellata (Hemiptera: Pentatomidae) reared on different diets.

The stink bug, Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) shows significant promise as a biological control agent against lepidopteran pests in tropical and subtropical areas. However, securing suitable food remains a persistent issue for the mass rearing of this beneficial insect. To understand how different feeding strategies impact reproductive success, we evaluated their effects on critical life table parameters and ovary development using a range of feeding options: natural prey Spodoptera litura Fabricius (Lepidoptera: Noctuidae) and Spodoptera exigua Hubner, alternative prey Tenebrio molitor Linnaeus (Coleoptera: Tenebrionidae), and an advanced artificial diet.

An entomopathogenic strain of (hypocreales: Cordycipitaceae) against (acarina: Tetranychidae) and its compatibility with (acarina: Phytoseiidae).

is an important pest on several agricultural crops, and its resistance to pesticides has promoted the exploration of biological control strategies. and have been identified as potential agents for suppressing spider mites. This study aimed to investigate the pathogenicity of on and its compatibility with .

Induces Strong Defense and Increases Resistance in Tomato to .

Pre-stimulation of plants can change their resistance mechanisms, thereby enhancing their defense responses. , a broad-spectrum entomogenous fungi, can also induce plant defenses, but it received little attention. Here, we show that can act as a stimulus to prime tomato defense responses, improving resistance in the plant to herbivore stress.

Research Progress of a Pesticide Polymer-Controlled Release System Based on Polysaccharides.

In recent years, with the development of the nanomaterials discipline, many new pesticide drug-carrying systems-such as pesticide nano-metal particles, nano-metal oxides, and other drug-carrying materials-had been developed and applied to pesticide formulations. Although these new drug-loading systems are relatively friendly to the environment, the direct exposure of many metal nanoparticles to the environment will inevitably lead to potential effects. In response to these problems, organic nanomaterials have been rapidly developed due to their high-quality biodegradation and biocompatibility.

The mechanism of coumarin inhibits germination of ryegrass (Lolium perenne) and its application as coumarin-carbon dots nanocomposites.

Background: As an important plant allelochemical, coumarin can effectively inhibit the germination of various seeds. However, little is known about the inhibition mechanism of coumarin on weed seed germination. Moreover, the herbicidal activity of coumarin is needed to be improved as a natural pesticide.

Chitosan-Based Surface Molecularly Imprinted Polymer Microspheres for Sustained Release of Sinomenine Hydrochloride in Aqueous Media.

The surface molecular imprinting technique has been proposed as a prospective strategy for template molecule recognition and separation by devising the recognition sites on the surface of imprinted materials. The purpose of this study was to establish a novel drug delivery system which was developed by surface molecular imprinting method using β-cyclodextrin (β-CD)-grafted chitosan (CS) (CS-g-β-CD) microspheres as matrix and sinomenine hydrochloride (SM) as the template molecule. By adjusting the amount of functional monomer and cross-linking agent, we got the more excellent adsorption of CS-g-β-CD molecularly imprinted polymers (MIPs-CS-g-β-CD).

Induction of Mast Cell Accumulation by Tryptase via a Protease Activated Receptor-2 and ICAM-1 Dependent Mechanism.

Mast cells are primary effector cells of allergy, and recruitment of mast cells in involved tissue is one of the key events in allergic inflammation. Tryptase is the most abundant secretory product of mast cells, but little is known of its influence on mast cell accumulation. Using mouse peritoneal model, cell migration assay, and flow cytometry analysis, we investigated role of tryptase in recruiting mast cells.

Induction of inflammatory cytokine release from human umbilical vein endothelial cells by agonists of proteinase-activated receptor-2.

1. Human endothelial cells express proteinase-activated receptor-2 (PAR-2), inflammatory cytokines and trypsin (EC 3.4.

Potent histamine-releasing activity of atrahagin, a novel snake venom metalloproteinase.

Poisonous snakebite wound is a popular disease worldwide. However, the pathogenesis remains unclear. In the present study, a novel metalloproteinase atrahagin in Chinese cobra (Naja atra) snake venom was purified, using heparin-sepharose followed by Superdex 75 gel filtration chromatography.

Inhibition of tryptase and chymase induced nucleated cell infiltration by proteinase inhibitors.

Aim: To investigate the ability of proteinase inhibitors to modulate nucleated cell infiltration into the peritoneum of mice induced by tryptase and chymase.

Methods: Human lung tryptase and skin chymase were purified by a similar procedure involving high salt extraction, heparin agarose affinity chromatography followed by S-200 Sephacryl gel filtration chromatography. The actions of proteinase inhibitors on tryptase and chymase induced nucleated cell accumulation were examined with a mouse peritoneum model.

Modulation of enzymatic activity of human mast cell tryptase and chymase by protease inhibitors.

Aim: To investigate the actions of protease inhibitors on the enzymatic activities of tryptase and chymase in similar experimental systems.

Methods: Human lung tryptase and human skin chymase were purified by a similar procedure involving high salt extraction of tryptase, heparin agarose affinity chromatography, and S-200 Sephacryl gel filtration chromatography. Actions of protease inhibitors on tryptase and chymase activities were examined by enzyme assays.