Chemical composition and antifeedant activity of some aromatic plants against pine weevil ( Hylobius abietis )

2020 ◽  
Vol 177 (1) ◽  
pp. 121-131
Author(s):  
Muhammad Azeem ◽  
Zafar Iqbal ◽  
S. Noushin Emami ◽  
Göran Nordlander ◽  
Henrik Nordenhem ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Hylobius Abietis ◽  
Aromatic Plants ◽  
Antifeedant Activity ◽  
Pine Weevil

Induced defenses change the chemical composition of pine seedlings and influence meal properties of the pine weevil Hylobius abietis

2016 ◽  
Vol 130 ◽  
pp. 99-105 ◽  
Author(s):  
Lina Lundborg ◽  
Frauke Fedderwitz ◽  
Niklas Björklund ◽  
Göran Nordlander ◽  
Anna-Karin Borg-Karlson
Keyword(s):  
Chemical Composition ◽  
Induced Defenses ◽  
Hylobius Abietis ◽  
Pine Weevil ◽  
Pine Seedlings

scholarly journals Hydroxy-Methoxybenzoic Methyl Esters: Synthesis and Antifeedant Activity on the Pine Weevil, Hylobius abietis

2004 ◽  
Vol 59 (7) ◽  
pp. 829-835 ◽  
Author(s):  
Sacha Legrand ◽  
Göran Nordlander ◽  
Henrik Nordenhem ◽  
Anna-Karin Borg-Karlsonc ◽  
C. Rikard Uneliusa
Keyword(s):  
Pest Management ◽  
Methyl Esters ◽  
The Other ◽  
Hydroxyl Group ◽  
Hylobius Abietis ◽  
Antifeedant Activity ◽  
Spectrometric Data ◽  
Pine Weevil ◽  
Antifeedant Effect ◽  
Complete Set

The pine weevil Hylobius abietis (L.) (Coleoptera: Curculionidae) feeds on the bark of coniferous seedlings and is the economically most important forestry restocking pest in large parts of Europe. Substances with an antifeedant effect may offer an environmentally friendly alternative to insecticides for the protection of planted seedlings. Bioassays were performed on commercial and synthetic methyl hydroxy-methoxybenzoates in order to determine their possible antifeedant activity.Two methyl hydroxy-methoxybenzoates were synthesized by esterification and mono-O-methylation of two dihydroxybenzoic acids. A regioselective protection-deprotection strategy was used in the synthetic pathway of the other non-commercial esters, esterification and selective pivaloylation of the less-hindered hydroxyl group of other commercial dihydroxybenzoic acids gave diester intermediates, which then were O-methylated before methanolysis of the pivaloyl group which yielded the desired non-commercial methyl hydroxy-methoxybenzoates.The five synthesized methyl hydroxy-methoxybenzoic esters were complemented with commercial samples of the five other isomers of methyl hydroxy-methoxybenzoate and spectrometric data were collected for the complete set of isomers. All ten isomers were tested for their antifeedant effect on the pine weevil. The effect varied considerably among the hydroxy-methoxybenzoic esters. Methyl 2-hydroxy-3-methoxybenzoate showed the highest effect and may thus be a candidate for practical use in pine weevil pest management.

Identification of plant volatiles activating single receptor neurons in the pine weevil ( Hylobius abietis )

1997 ◽  
Vol 180 (6) ◽  
pp. 585-595 ◽  
Author(s):  
Atle Wibe ◽  
Anna-Karin Borg-Karlson ◽  
Torbjörn Norin ◽  
Hanna Mustaparta
Keyword(s):  
Plant Volatiles ◽  
Hylobius Abietis ◽  
Pine Weevil ◽  
Single Receptor ◽  
Receptor Neurons

scholarly journals Comparative Evaluation of Essential Oils from Medicinal-Aromatic Plants of Greece: Chemical Composition, Antioxidant Capacity and Antimicrobial Activity against Bacterial Fish Pathogens

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 148 ◽  
Author(s):  
Thekla I. Anastasiou ◽  
Manolis Mandalakis ◽  
Nikos Krigas ◽  
Thomas Vézignol ◽  
Diamanto Lazari ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antioxidant Capacity ◽  
Antioxidant Properties ◽  
In Vitro Assays ◽  
Aromatic Plants ◽  
Farmed Fish ◽  
Fish Pathogens ◽  
Antioxidant Agents ◽  
The Impact

The administration of antibiotics in aquaculture has raised concern about the impact of their overuse in marine ecosystems, seafood safety and consumers’ health. This “green consumerism” has forced researchers to find new alternatives against fish pathogens. The present study focused on 12 Mediterranean medicinal-aromatic plants as potential antimicrobials and antioxidant agents that could be used in fish aquaculture. In vitro assays showed that the essential oils (EOs) from all studied plants had anti-bacterial and antioxidant properties, with their efficacy being dependent on their chemical composition. More specifically, EOs rich in carvacrol, p-cymene and γ-terpinene exhibited not only the strongest inhibitory activity against the growth of bacterial pathogens (inhibitory concentration: 26–88 μg mL−1), but also the greatest total antioxidant capacity (ABTS: 2591–5879 μmole mL−1; CUPRAC: 931–2733 μmole mL−1). These compounds were mainly found in the EOs from Greek oregano (Origanum vulgare subsp. hirtum), Spanish oregano (Thymbra capitata) and savoury (Satureja thymbra) collected from cultivations in Greece. The specific EOs stand out as promising candidates for the treatment of bacterial diseases and oxidative stress in farmed fish. Further in vivo experiments are needed to fully understand the effects of EO dietary supplementation on fish farming processes.

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