Topic
Nerol
About: Nerol is a research topic. Over the lifetime, 713 publications have been published within this topic receiving 15778 citations. The topic is also known as: cis-geraniol & (Z)-geraniol.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: Geraniol synthase (GES) activity was shown to be localized exclusively or almost exclusively to glands, and RNA gel-blot analysis indicated that GES is expressed in glands but not in leaves of basil cv Sweet Dani, whose glands contain geraniol and citral, and not in glands or leaves of another basil variety that makes other monoterpenes but not Geraniol or citral.
Abstract: The monoterpene fraction of the lemon-scented sweet basil (Ocimum basilicum) cv Sweet Dani consists mostly of citral (a mixture of geranial and neral), with lower levels of geraniol and nerol. These compounds are stored in the peltate glands found on the leaf epidermis. Younger leaves, which have a higher density of such glands, also have a higher content of monoterpenes than older leaves. Geraniol synthase (GES) activity, generating geraniol from geranyl diphosphate, was shown to be localized exclusively or almost exclusively to glands. GES activity resides in a homodimeric protein that was purified to near homogeneity. Basil GES requires Mn 2 as a divalent metal cofactor for activity and produces only geraniol from geranyl diphosphate. Km values of 21 and 51 m were obtained for geranyl diphosphate and Mn 2 , respectively. In the presence of 18 O-labeled water, GES catalyzed the formation of 18 O-geraniol from geranyl diphosphate, indicating that the reaction mechanism of GES is similar to that of other monoterpene synthases and is different from the action of phosphatases. A GES cDNA was isolated based on analysis of a glandular trichome expressed sequence tag database, and the sequence of the protein encoded by this cDNA shows some similarity to sequences of other terpene synthases. The expression of the GES cDNA in Escherichia coli resulted in a protein with enzymatic activity essentially identical to that of plant-purified GES. RNA gel-blot analysis indicated that GES is expressed in glands but not in leaves of basil cv Sweet Dani, whose glands contain geraniol and citral, and not in glands or leaves of another basil variety that makes other monoterpenes but not geraniol or citral.
289 citations
TL;DR: The essential oil isolated by hydro-distillation from the peel of fully matured ripen fruits of Citrus reticulata Blanco showed better activity in VA assay and the antifungal activity was tested against five plant pathogenic fungi.
Abstract: The essential oil (EO) isolated by hydro-distillation from the peel of fully matured ripen fruits of Citrus reticulata Blanco were analyzed by GC and GC–MS. Thirty seven different components were identified constituting approximately ≥99% of the oil. The major components were limonene (46.7%), geranial (19.0%), neral (14.5%), geranyl acetate (3.9%), geraniol (3.5%), β-caryophyllene (2.6%), nerol (2.3%), neryl acetate (1.1%) etc. The antifungal activity of the oil was tested by poisoned food (PF) technique and the volatile activity (VA) assay against five plant pathogenic fungi viz Alternaria alternata (Aa), Rhizoctonia solani (Rs), Curvularia lunata (Cl), Fusarium oxysporum (Fo) and Helminthosporium oryzae (Ho). The oil showed better activity in VA assay. The Minimum inhibitory concentration (MIC) for Aa, Rs and Cl was 0.2 ml/100 ml whereas >0.2 ml/100 ml for Fo and Ho in PF technique. Fungal sporulation was also completely inhibited at 2 ml/100 ml of the oil except for Cl and Ho, which was only 0.5% (±0.5) and 0.25% (±0.25) respectively as compared to control.
287 citations
TL;DR: In particular, hydrogenation enantioselective en particulier du geraniol and du nerol catalysee par des complexes dicarboxylato du ruthenium(II) contenant des coordinats bis-diarylphosphino-2,2' binaphtyles-1,1'
Abstract: Hydrogenation enantioselective en particulier du geraniol et du nerol catalysee par des complexes dicarboxylato du ruthenium(II) contenant des coordinats bis-diarylphosphino-2,2' binaphtyles-1,1'
257 citations
TL;DR: Among the tested compounds, nerol, linalool α-terpineol, fenchol and terpinen-4-ol showed antibacterial activity at a broad spectrum, however, their antibacterial activities were lower than those of penicillin.
Abstract: Plant essential oils are widely used as fragrances and flavours in the cosmetic, perfume, drug and food industries. Oxygenated monoterpenes are widespread components of the essential oils, usually occurring in high amount. In this paper, the antibacterial activities of twenty-one oxygenated monoterpenes (borneol, borneol acetate, camphor, carvone, 1,8-cineole, citronellal, beta-citronellol, dihydrocarvone, fenchol, fenchone, geraniol acetate, isomenthol, limonene oxide, linalool, linalool acetate, nerol, nerol acetate, terpinen-4-ol, alpha-terpineol, menthol and menthone) and penicillin (standard antibiotic) were determined using a disc diffusion method (in vitro) against 63 bacterial strains, belonging to 37 different genera and 54 species (plant, food and clinic origins). The results showed that the oxygenated monoterpenes exhibited a variable degree of antibacterial activities. These compounds also inhibited the growth of bacterial strains by producing a weak zone of inhibition from 7 to 11 mm in diameter, depending on the susceptibility of the tested bacteria. Among the tested compounds, nerol, linalool alpha-terpineol, fenchol and terpinen-4-ol showed antibacterial activity at a broad spectrum. However, their antibacterial activities were lower than those of penicillin. In contrast to these compounds, camphor and 1,8-cineole exhibited no inhibition effects on the growth of all tested bacteria.
255 citations
TL;DR: In this paper, β-Rutinosides (6-O-α- l -rhamnopyranosyl-β- d -glucopyranoides) and 6-Oα-l -arabinofuranosylβ-d-glucopeysides of Geraniol, nerol and linalol have been isolated and characterized in Muscat of Alexandria grapes and wine.
254 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 1 |
| 2025 | 6 |
| 2024 | 10 |
| 2023 | 22 |
| 2022 | 42 |
| 2021 | 20 |