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Leht 1 alates 118 tulemused
Monoterpene synthases of loblolly pine (Pinus taeda) produce pinene isomers and enantiomers.
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The turpentine fraction of conifer oleoresin is a complex mixture of monoterpene olefins and plays important roles in defense and in the mediation of chemical communication between conifer hosts and insect predators. The stereochemistry of the turpentine monoterpenes is critical in these
Reduced offspring production in bark beetleTomicus piniperda in pine bolts baited with ethanol and α-pinene, which attract antagonistic insects.
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Bolts of Scots pine,Pinus sylvestris L., attacked by the bark beetleTomicus piniperda (L.) were baited with ethanol and α-pinene to attract antagonistic insects and thereby enhance their detrimental effects on the production of bark beetle progeny. Unbaited and caged bolts were included in the
Determination of isoprene and alpha-/beta-pinene oxidation products in boreal forest aerosols from Hyytiälä, Finland: diel variations and possible link with particle formation events.
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Biogenic volatile organic compounds (VOCs), such as isoprene and alpha-/beta-pinene, are photo-oxidized in the atmosphere to non-volatile species resulting in secondary organic aerosol (SOA). The goal of this study was to examine time trends and diel variations of oxidation products of isoprene and
Compartment specific chiral pinene emissions identified in a Maritime pine forest.
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To track unknown sources and sinks of volatile organic compounds (VOCs) inside forest canopies we measured diel cycles of VOC exchanges in a temperate maritime forest at the branch, stem and ground level with special focus on the chiral signatures of pinenes. All compartments released day and night
The biosynthesis of (+)- -pinene in Pinus species.
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1. The degradation of (+)-alpha-pinene biosynthesized from 3RS-[2-(14)C]mevalonate by Pinus radiata or Pinus nigra revealed an asymmetrical labelling pattern whereby the moiety derived from isopentenyl pyrophosphate contained at least 90% of the incorporated tracer. This pattern differed both in
Metabolic engineering of Escherichia coli for the biosynthesis of alpha-pinene.
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BACKGROUND
α-Pinene is an important natural product that is widely used in flavorings, fragrances, medicines, fine chemicals and high-density renewable fuels. Currently, α-Pinene used in industry is mainly produced either by tapping trees (gum turpentine) or as a byproduct of paper pulping (crude
Enhanced production of pinene by using a cell-free system with modular cocatalysis.
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α-Pinene is an important monoterpene that is widely used as a pharmaceutical, biofuel, etc. We first established a cell-free system with modular cocatalysis for the production of pinene from glucose. After optimization of the compositions of the cell-free reaction mixture using the Plackett-Burman
cDNA isolation, functional expression, and characterization of (+)-alpha-pinene synthase and (-)-alpha-pinene synthase from loblolly pine (Pinus taeda): stereocontrol in pinene biosynthesis.
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The complex mixture of monoterpenes, sesquiterpenes, and diterpenes that comprises oleoresin provides the primary defense of conifers against bark beetles and their associated fungal pathogens. Monoterpene synthases produce the turpentine fraction of oleoresin, which allows mobilization of the
Biosynthesis of pinene from glucose using metabolically-engineered Corynebacterium glutamicum.
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Pinene is a monoterpenes (C10) that is produced in a genetically-engineered microbial host for its industrial applications in fragrances, flavoring agents, pharmaceuticals, and biofuels. Herein, we have metabolically-engineered Corynebacterium glutamicum, to produce pinene and studied its toxicity
Enhancing Production of Pinene in Escherichia coli by Using a Combination of Tolerance, Evolution, and Modular Co-culture Engineering.
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α-Pinene is a natural and active monoterpene, which is widely used as a flavoring agent and in fragrances, pharmaceuticals, and biofuels. Although it has been successfully produced by genetically engineered microorganisms, the production level of pinene is much lower than that of hemiterpene
Chemical composition and antimicrobial activity of the essential oil of endemic Dalmatian black pine (Pinus nigra ssp. dalmatica).
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The chemical composition and the antimicrobial activity of the essential oil isolated from the needles of endemic Dalmatian black pine (Pinus nigra ssp. dalmatica) from Croatia were investigated. The chemical composition of the essential oil was determined by GC and GC/MS analyses, and the main
Chemotaxonomic significance of the terpene composition in natural populations of Pinus nigra J.F.Arnold from Serbia.
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The essential-oil variability in seven native populations belonging to different infraspecific taxa of Pinus nigra (ssp. nigra, var. gocensis, ssp. pallasiana, and var. banatica) growing wild in Serbia was analyzed. In the needles of 195 trees from seven populations, 58 essential-oil components were
Time-integrated thermal desorption for quantitative SIFT-MS analyses of atmospheric monoterpenes.
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A new time-integrated thermal desorption technique has been developed that can be used with selected ion flow tube mass spectrometry, TI-TD/SIFT-MS, for off-line quantitative analyses of VOCs accumulated onto sorbents. Using a slow desorption temperature ramp, the absolute amounts of desorbed
Monoterpene oviposition stimulants ofDioryctria amatella in volatiles from fusiform rust galls and second-year loblolly pine cones.
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Volatiles collected on Poropak Q from fusiform rust galls (Cronartium quercuum F. sp.fusiforme) of loblolly pine for 3 hr were better ovi-position stimulants forDioryctria amatella (Hulst) females than extracts of 8-hr collections. GLC analysis of these extracts showed no major differences in
Effects of phosphorus availability and genetic variation of leaf terpene content and emission rate in Pinus pinaster seedlings susceptible and resistant to the pine weevil, Hylobius abietis.
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We studied the effects of phosphorus fertilisation on foliar terpene concentrations and foliar volatile terpene emission rates in six half-sib families of Pinus pinaster Ait. seedlings. Half of the seedlings were resistant to attack of the pine weevil Hylobius abietis L., a generalist phloem feeder,
Kõige täiuslikum ravimtaimede andmebaas, mida toetab teadus
- Töötab 55 keeles
- Taimsed ravimid, mida toetab teadus
- Maitsetaimede äratundmine pildi järgi
- Interaktiivne GPS-kaart - märgistage ürdid asukohas (varsti)
- Lugege oma otsinguga seotud teaduspublikatsioone
- Otsige ravimtaimi nende mõju järgi
- Korraldage oma huvisid ja hoidke end kursis uudisteuuringute, kliiniliste uuringute ja patentidega
Sisestage sümptom või haigus ja lugege ravimtaimede kohta, mis võivad aidata, tippige ürdi ja vaadake haigusi ja sümptomeid, mille vastu seda kasutatakse.
* Kogu teave põhineb avaldatud teaduslikel uuringutel
