2-methoxy-6-pentyl-1,4-dihydroxybenzene (miconidin) from Primula obconica: a possible allergen? 1995

M Krebs, and L P Christensen
Department of Ornamentals, Research Center Arsley, Danish Institute of Plant and Soil Science, Arslev, Denmark.

Miconidin (2-methoxy-6-pentyl-1,4-dihydroxybenzene) and the allergen primin (2-methoxy-6-pentyl-1,4-benzoquinone) have been isolated from fresh unchopped plant material (leaves, stems and flowers together) of Primula obconica. Miconidin and primin were obtained in approximately equal amounts and their structures determined by NMR and GC-MS. Miconidin, which is biogenetically related to primin, has not previously been isolated from Primula species, and the possibility that miconidin is an allergen in P. obconica is discussed.

UI MeSH Term Description Entries
D008401 Gas Chromatography-Mass Spectrometry A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. Chromatography, Gas-Liquid-Mass Spectrometry,Chromatography, Gas-Mass Spectrometry,GCMS,Spectrometry, Mass-Gas Chromatography,Spectrum Analysis, Mass-Gas Chromatography,Gas-Liquid Chromatography-Mass Spectrometry,Mass Spectrometry-Gas Chromatography,Chromatography, Gas Liquid Mass Spectrometry,Chromatography, Gas Mass Spectrometry,Chromatography, Mass Spectrometry-Gas,Chromatography-Mass Spectrometry, Gas,Chromatography-Mass Spectrometry, Gas-Liquid,Gas Chromatography Mass Spectrometry,Gas Liquid Chromatography Mass Spectrometry,Mass Spectrometry Gas Chromatography,Spectrometries, Mass-Gas Chromatography,Spectrometry, Gas Chromatography-Mass,Spectrometry, Gas-Liquid Chromatography-Mass,Spectrometry, Mass Gas Chromatography,Spectrometry-Gas Chromatography, Mass,Spectrum Analysis, Mass Gas Chromatography
D010944 Plants Multicellular, eukaryotic life forms of kingdom Plantae. Plants acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations. It is a non-taxonomical term most often referring to LAND PLANTS. In broad sense it includes RHODOPHYTA and GLAUCOPHYTA along with VIRIDIPLANTAE. Plant
D006873 Hydroquinones Derivatives of hydroquinone (1,4-dihydrobenzene) made by reduction of BENZOQUINONES. Quinol,p-Dihydroxybenzenes,para-Dihydroxybenzenes,Quinols,p Dihydroxybenzenes,para Dihydroxybenzenes
D000485 Allergens Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). Allergen
D016227 Benzoquinones Benzene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups. 1,2-Benzoquinones,1,4-Benzoquinones,Benzodiones,2,5-Cyclohexadiene-1,4-Diones,o-Benzoquinones,p-Benzoquinones
D017449 Dermatitis, Allergic Contact A contact dermatitis due to allergic sensitization to various substances. These substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure. Allergic Contact Dermatitis,Dermatitis, Allergic Eczematous,Dermatitis, Contact, Allergic,Allergic Contact Dermatitides,Allergic Eczematous Dermatitides,Allergic Eczematous Dermatitis,Contact Dermatitides, Allergic,Contact Dermatitis, Allergic,Dermatitides, Allergic Contact,Dermatitides, Allergic Eczematous,Eczematous Dermatitides, Allergic,Eczematous Dermatitis, Allergic

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