Results 11 to 20 of about 61,869 (266)
Chemical Synthesis and Insecticidal Activity Research Based on α-Conotoxins [PDF]
MoleculesThe escalating resistance of agricultural pests to chemical insecticides necessitates the development of novel, efficient, and safe biological insecticides.
Chengzhang Lin +4 more
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Engineering of Bacillus thuringiensis Cry2Ab toxin for improved insecticidal activity [PDF]
AMB ExpressBacillus thuringiensis Cry2Ab toxin was a widely used bioinsecticide to control lepidopteran pests all over the world. In the present study, engineering of Bacillus thuringiensis Cry2Ab toxin was performed for improved insecticidal activity using site ...
Bai-Wen Fu +4 more
doaj +2 more sources
Insecticidal activity of the crude extract from Epichloë bromicola against Rhopalosiphum padi [PDF]
E3S Web of Conferences, 2020 Rhopalosiphum padi is a important pest in agricultural production. In order to reduce the use of chemical pesticides and improve the control effect, we reported the insecticidal activity of the crude extract from 20 strains Epichloë bromicola isolated ...
Guo Zhao-Ling +3 more
doaj +1 more source
Design and Synthesis of Scopoletin Sulfonate Derivatives as Potential Insecticidal Agents
Molecules, 2023 (1) Background: Scopoletin and scoparone, two naturally occurring coumarins, have garnered considerable attention and have been introduced to the market in China due to their high insecticidal efficacy and low toxicity.
Congmin Liu +5 more
doaj +1 more source
Horticulturae, 2022 Essential oils have insecticidal activity against several insects and are composed of numerous compounds. This study investigated the insecticidal effects of the Thuja occidentalis L.
Hyun-Jin Song +6 more
doaj +1 more source
Effects of Site-Directed Mutagenesis of Cysteine on the Structure of Sip Proteins
Frontiers in Microbiology, 2022 Bacillus thuringiensis, a gram-positive bacteria, has three insecticidal proteins: Vip (vegetative insecticidal protein), Cry (crystal), and Sip (secreted insecticidal protein).
Lin Wang +6 more
doaj +1 more source
Stability is essential for insecticidal activity of Vip3Aa toxin against Spodoptera exigua
AMB Express, 2022 Vegetative insecticidal proteins 3A (Vip3A) were important insecticidal proteins for control of lepidopteran pests. Previous study demonstrated that Vip3Aa and Vip3Ad showed significant difference in insecticidal activities against Spodoptera exigua ...
Bai-Wen Fu +5 more
doaj +1 more source
Molecules, 2020 Fraxinellone (1) is a naturally occurring degraded limonoid isolated from Meliaceae and Rutaceae plants. As a potential natural-product-based insecticidal agent, fraxinellone has been structurally modified to improve its activity.
Xiao-Jun Yang +3 more
doaj +1 more source
A new family of diverse skin peptides from the microhylid frog genus phrynomantis [PDF]
, 2020 A wide range of frogs produce skin poisons composed of bioactive peptides for defence against pathogens, parasites and predators. While several frog families have been thoroughly screened for skin-secreted peptides, others, like the Microhylidae, have ...
Ballet, Steven +7 more
core +1 more source
Journal of Fungi, 2022 The fungal strain BS5 was isolated from a soil sample collected in the Tibetan Plateau, which displayed good insecticidal activity and was identified as Talaromyces purpureogenus based on morphological and molecular analysis. This study aimed to evaluate
Ying Yue +7 more
doaj +1 more source