Background and objectives: Parkinson's disease (PD) is a common neuropathologic disorder that is caused by degeneration of dopaminergic neurons of dense part of nigra. Oxidative stress has been found in the pathophysiology of PD. Since α-pinene has strong anti-oxidant effects, the purpose of this research was to study its effects on movement disorders and memory and lipid perox...

--We investigated the hypotheses that two different varieties of Arabidopsis thaliana show differences in physiology and terpene production. The two varieties of A. thaliana used in this study were wild-type (WT) and transgenic line (CoxIV-FaNES I) genetically modified to emit nerolidol with linalool/nerolidol synthase (COX). Photosynthetic rate, electron transport rate, fluorescence, leaf vola...

The chemical composition, including the enantiomeric excess of the main terpenes, of essential oils from seeds and cones of Abies concolor was studied by chromatographic (GC) and spectroscopic methods (mass spectrometry, nuclear magnetic resonance), leading to the determination of 98 compounds. Essential oils were mainly composed of monoterpene hydrocarbons. The dominant volatiles of seed essen...

The kinetics of antibacterial activity cajuput oil (Melaleuca cajuputi) to E. coli, B. cereus, and S. aureus were investigated. aim this study was determine the reaction orders as an agent. extraction conducted by water-steam distillation. yield 0.88%. GC-MS analysis showed that contained β-ocimene (19.35%), 1.8-cineole (17.67%), limonene (12.09%), β-caryophyllene (9.51%), γ-terpinene (8.93%), ...

A series of triblock copolymers in a hard-soft-hard block configuration with varying hard α-pinene methacrylate content and molecular weight butyl acrylate soft segment have been synthesised investigated for viability pressure sensitive adhesive (PSA) applications. The morphologies vary from pockets phase distributed within continuous matrix, through to lamellar co-continuous phases, finally di...

Abstract A generic trap lure blend of host volatiles (ethanol + α-pinene) and Ips bark beetle pheromones (ipsenol ipsdienol) is effective for detecting numerous species longhorn beetles (Coleoptera: Cerambycidae) in pine forests North America. In 2021, the potential benefits adding two other (lanierone cis-verbenol) to traps baited with were determined north Georgia. Lanierone cis-verbenol had ...

Abstract This study aims to determine differences in oleoresin production and the type content of turpentine P. oocarpa merkusii. The first stage research activity was collect obtained from 15 plants each pine aged 14 years which were determined randomly. Determination phytochemicals, especially using Gas Chromatography-Mass Spectrometry by injecting gas-phase chemical isolates. tapping data an...

Secrets of the Forest: Volatiles First Discovered in Pine Trees Propagate Defense 2 Signals Within and Between Plants 3 4 Systemic acquired resistance (SAR)—a plant-wide heightened state of defense following 5 localized exposure to a pathogen—is characterized by increased salicylic acid (SA) and ROS 6 levels and elevated expression of pathogenesis-related genes. SAR depends on ENHANCED 7 DISEAS...

Suitability of plant tissues as food for insects varies from plant to plant. In lepidopteran insects, fitness is largely dependent on the host-finding ability of the females. Existing studies have suggested that polyphagous lepidopterans preferentially select certain host plant species for oviposition. However, the mechanisms for host recognition and selection have not been fully elucidated. Fo...

Soil abiotic factors influence plant defensive traits by shaping the costs of defence production and these bottom-up effects on plants can in turn affect insect herbivory. However, few studies have disentangled direct indirect soil defences To address this gap, we tested seed predation via changes for sea fennel (Crithmum maritimum), a common coastal southern Spain whose seeds are consumed spec...